1 00:00:16,516 --> 00:00:17,217 >> THAT WAS AWESOME! 2 00:00:17,217 --> 00:00:21,254 JUST LIKE BEING IN NASCAR. 3 00:00:21,254 --> 00:00:22,589 >> Beth: MARTY, YOU HAVE TO GO 4 00:00:22,589 --> 00:00:23,490 FASTER TO GET THE NASCAR 5 00:00:23,490 --> 00:00:25,825 EXPERIENCE TO FEEL THE 6 00:00:25,825 --> 00:00:27,927 DOWNFORCE, DRAFT AND DRAG. 7 00:00:27,927 --> 00:00:30,563 >> THESE AREA DYNAMIC, THESE ARE 8 00:00:30,563 --> 00:00:31,664 RACE CARS. 9 00:00:31,664 --> 00:00:35,535 >> UF TO KEEP THE THREE D'S IN 10 00:00:35,535 --> 00:00:35,869 MIND. 11 00:00:35,869 --> 00:00:38,371 >> Marty: DO WE HAVE TIME TO 12 00:00:38,371 --> 00:00:39,739 RACE AGAIN? 13 00:00:39,739 --> 00:00:41,107 >> Beth: WE SURE DO. 14 00:00:41,107 --> 00:00:46,980 THIS IS "STEM IN 30". 15 00:00:46,980 --> 00:01:04,597 ♪ [ MUSIC ] ♪♪ 16 00:01:05,064 --> 00:01:23,750 >> THIS IS "STEM IN 30". 17 00:01:24,083 --> 00:01:25,351 >> Beth: I MEAN BETH WILSON. 18 00:01:25,351 --> 00:01:26,453 >> Marty: I'M MARTY KELSEY. 19 00:01:26,453 --> 00:01:27,620 >> Beth: WE'RE COMING LIVE FROM 20 00:01:27,620 --> 00:01:29,456 THE NASCAR HALL OF FAME IN 21 00:01:29,456 --> 00:01:30,390 CHARLOTTE, NORTH CAROLINA. 22 00:01:30,390 --> 00:01:32,025 >> Marty: WE'RE STANDING ON 23 00:01:32,025 --> 00:01:33,293 GLORY ROAD AND THE TRACK IS 24 00:01:33,293 --> 00:01:35,562 BANKED AT 33 DEGREES HERE JUST 25 00:01:35,562 --> 00:01:38,231 LIKE IN TALLADEGA. 26 00:01:38,231 --> 00:01:40,266 GLORY ROAD IS A SNAPSHOT OF 27 00:01:40,266 --> 00:01:41,301 NASCAR HISTORY. 28 00:01:41,301 --> 00:01:42,335 >> Beth: HERE YOU CAN SEE CARS 29 00:01:42,335 --> 00:01:44,737 THAT HAVE BEEN DRIVEN BY KYLE 30 00:01:44,737 --> 00:01:47,540 BUSCH, JIMMIE JOHNSON AND JEFF 31 00:01:47,540 --> 00:01:47,874 GORDON. 32 00:01:47,874 --> 00:01:49,843 >> Marty: AND THE NUMBER 33 00:01:49,843 --> 00:01:53,246 THREE-CAR DRIVEN BY DALE 34 00:01:53,246 --> 00:01:53,646 EARNHARDT. 35 00:01:53,646 --> 00:01:54,681 >> Beth: THESE CARS CHANGE SO 36 00:01:54,681 --> 00:01:57,283 YOU NEVER NOAH YOU'LL SEE ON 37 00:01:57,283 --> 00:01:58,251 GLORY ROAD AT THE NASCAR HALL OF 38 00:01:58,251 --> 00:01:58,551 FAME. 39 00:01:58,551 --> 00:02:00,453 WE WANT TO REMIND ALL OF YOU 40 00:02:00,453 --> 00:02:02,121 WATCHING ON LINE THAT YOU CAN 41 00:02:02,121 --> 00:02:03,857 SUBMIT QUESTIONS LIVE AND WE MAY 42 00:02:03,857 --> 00:02:05,825 TAKE THEM ON THE AIR. 43 00:02:05,825 --> 00:02:06,726 >> Marty: WE HAVE GREAT STUDENTS 44 00:02:06,726 --> 00:02:12,065 FROM CANNON SCHOOL JOINING US 45 00:02:12,065 --> 00:02:12,632 TODAY. 46 00:02:12,632 --> 00:02:12,932 WHOO. 47 00:02:12,932 --> 00:02:14,968 >> Marty: HERE REVVED UP AND 48 00:02:14,968 --> 00:02:15,969 READY TO GO AND HAVE GREAT 49 00:02:15,969 --> 00:02:18,204 QUESTIONS FOR OUR EXPERTS. 50 00:02:18,204 --> 00:02:19,172 >> Beth: BEFORE WE GET STARTED 51 00:02:19,172 --> 00:02:22,475 LET'S TAKE A QUICK TOUR OF THE 52 00:02:22,475 --> 00:02:29,182 NASCAR HALL OF FAME. 53 00:02:29,182 --> 00:02:30,583 >>> I'M SCALISE SCALISE. 54 00:02:30,583 --> 00:02:32,051 THE NASCAR HALL OF FAME HOPED IN 55 00:02:32,051 --> 00:02:38,358 SWING OF 2010 AS PLACE OF 56 00:02:38,358 --> 00:02:39,092 CONVERSING. 57 00:02:39,092 --> 00:02:40,560 40 LEGENDARY FIGURES FROM 58 00:02:40,560 --> 00:02:42,161 DRIVERS AND TEAM OWNERS AND CREW 59 00:02:42,161 --> 00:02:43,963 CHIEF HAVE BEEN INDUCTED INTO 60 00:02:43,963 --> 00:02:44,731 THE HALL OF FAME. 61 00:02:44,731 --> 00:02:46,432 WE'RE PROUD TO SHARE THEIR 62 00:02:46,432 --> 00:02:47,400 STORIES WITH FANS FROM ALL OVER 63 00:02:47,400 --> 00:02:48,067 THE WORLD. 64 00:02:48,067 --> 00:02:54,807 >> OUR STATE-OF-THE-ART FACILITY 65 00:02:54,807 --> 00:02:56,075 FEATURES EXHIBITS LIKE VISITORS 66 00:02:56,075 --> 00:02:58,177 CHANGING A TIRE AND FILLING GAS 67 00:02:58,177 --> 00:02:59,479 AS FAST AS THEY CAN. 68 00:02:59,479 --> 00:03:01,881 OUR RACING STIMULATOR THAT PUTS 69 00:03:01,881 --> 00:03:02,949 GUESTS BEHIND THE WHEEL OF A 70 00:03:02,949 --> 00:03:04,117 RACE CAR. 71 00:03:04,117 --> 00:03:07,387 OUR HUGE HIGH OCTANE FEEDER 72 00:03:07,387 --> 00:03:09,455 FEATURES A CURVE SCREEN, 73 00:03:09,455 --> 00:03:11,124 SURROUND SOUND AND AUDIO MAKING 74 00:03:11,124 --> 00:03:12,759 IT GREAT TO WATCH A RACE. 75 00:03:12,759 --> 00:03:15,261 POSING FOR A PICTURE IN FRONT OF 76 00:03:15,261 --> 00:03:16,462 GLORY ROAD IS A MUST. 77 00:03:16,462 --> 00:03:20,633 THE TRACK INCREASES FROM ZERO TO 78 00:03:20,633 --> 00:03:23,102 33 IT DEGREES, WITH TRACKS 79 00:03:23,102 --> 00:03:24,170 REPRESENTED FROM AROUND THE 80 00:03:24,170 --> 00:03:26,940 NATION AND 18 CARS. 81 00:03:26,940 --> 00:03:31,010 THE HALL OF HONOR, THE RECENT 82 00:03:31,010 --> 00:03:33,179 HALL OF FAME CLASS REPRESENTED 83 00:03:33,179 --> 00:03:34,414 THROUGH VIDEOS AND ARTIFACTS 84 00:03:34,414 --> 00:03:36,482 THAT PAINT THE PICTURE OF THEIR 85 00:03:36,482 --> 00:03:36,849 CAREERS. 86 00:03:36,849 --> 00:03:44,090 WE'RE PROUD TO OFFER FUN, 87 00:03:44,090 --> 00:03:44,891 EDUCATIONAL OPPORTUNITIES: 88 00:03:44,891 --> 00:03:46,759 THERE'S SOMETHING FOR EVERYONE. 89 00:03:46,759 --> 00:03:48,561 WHETHER YOU FOLLOW A FAVORITE 90 00:03:48,561 --> 00:03:52,231 DRIVER FOR DECADES OR WITNESSED 91 00:03:52,231 --> 00:03:54,467 A RACE, WE ENCOURAGE YOU TO 92 00:03:54,467 --> 00:03:58,071 EXPERIENCE ALL THE HALL HAS TO 93 00:03:58,071 --> 00:03:58,838 OFFER. 94 00:03:58,838 --> 00:04:02,108 >> Beth: I'M JOINED BY KURT 95 00:04:02,108 --> 00:04:02,809 ROMBERG, CHIEF AERODYNAMICIST, 96 00:04:02,809 --> 00:04:03,543 ROUSH FENWAY RACING, THANK YOU 97 00:04:03,543 --> 00:04:04,978 SO MUCH FOR BEING HERE. 98 00:04:04,978 --> 00:04:06,279 >> MY PLEASURE. 99 00:04:06,279 --> 00:04:09,482 >> WHAT IS AN AERODYNAMICIST? 100 00:04:09,482 --> 00:04:11,417 >> IT'S AN ENGINEER, I'M 101 00:04:11,417 --> 00:04:14,420 SCHOOLED AS AN ENGINEER AND WORK 102 00:04:14,420 --> 00:04:16,656 AT ROUCHE FENWAY TO MAKE THE 103 00:04:16,656 --> 00:04:18,524 RACE CARS GO FASTER. 104 00:04:18,524 --> 00:04:20,793 WE CAN DESIGN THE CARS AND SHAPE 105 00:04:20,793 --> 00:04:23,296 THE CARS SO WHEN AIR GOES OVER 106 00:04:23,296 --> 00:04:25,198 THEM IT PUSHES DOWN ON THE CAR. 107 00:04:25,198 --> 00:04:26,532 WHAT THAT DOES IS GIVES THE 108 00:04:26,532 --> 00:04:27,467 TIRES MORE GRIP. 109 00:04:27,467 --> 00:04:29,068 WHEN TIRES HAVE MORE GRIP IT 110 00:04:29,068 --> 00:04:30,637 ALLOWS THE DRIVERS TO GO AROUND 111 00:04:30,637 --> 00:04:32,071 THE RACETRACK FASTER. 112 00:04:32,071 --> 00:04:34,507 WE'RE TRYING TO SHAPE THE CARS 113 00:04:34,507 --> 00:04:36,609 SUCH THAT WE GIVE THE CAR MORE 114 00:04:36,609 --> 00:04:36,943 GRIP. 115 00:04:36,943 --> 00:04:41,114 >> Beth: YOU USE ONE OF THESE, 116 00:04:41,114 --> 00:04:41,781 IS THAT CORRECT? 117 00:04:41,781 --> 00:04:44,651 >> YES, WE DO, THIS IS A SCALE 118 00:04:44,651 --> 00:04:46,853 WIND TUNNEL AND THIS IS THE TEST 119 00:04:46,853 --> 00:04:49,889 ARTICLE IN THE WIND TUNNEL 120 00:04:49,889 --> 00:04:50,456 PROPER. 121 00:04:50,456 --> 00:04:52,258 IN A MINUTE WE'LL FIRE THIS UP 122 00:04:52,258 --> 00:04:53,259 SO YOU CAN SEE. 123 00:04:53,259 --> 00:04:55,094 WE'VE GOT STREAMERS TAPED TO THE 124 00:04:55,094 --> 00:04:56,596 SIDE SO YOU CAN SEE WHAT THE AIR 125 00:04:56,596 --> 00:04:59,132 DOES AS IT GOES OVER THE CAR. 126 00:04:59,132 --> 00:05:02,769 >> Beth: LET'S HAVE CHLOE PUSH 127 00:05:02,769 --> 00:05:06,072 DOWN ON THE BACK AND TALK ABOUT 128 00:05:06,072 --> 00:05:07,774 WHAT'S GOING ON. 129 00:05:07,774 --> 00:05:09,776 >> WE'RE MEASURING DOWN FORCE AT 130 00:05:09,776 --> 00:05:13,312 THE FRONT AXLE AND HE REAR AXLE. 131 00:05:13,312 --> 00:05:16,015 UNDERNEATH EACH AXLE WE HAVE A 132 00:05:16,015 --> 00:05:18,751 METERED, MUCH LIKE A BATHROOM 133 00:05:18,751 --> 00:05:20,153 SCALE AT HOMES. 134 00:05:20,153 --> 00:05:22,088 IT MEASURES HOW MUCH FORCE IS 135 00:05:22,088 --> 00:05:23,656 PUSHING DOWN. 136 00:05:23,656 --> 00:05:25,324 AS KHLOE PUSHES DOWN, THIS GOES 137 00:05:25,324 --> 00:05:25,692 UP. 138 00:05:25,692 --> 00:05:28,227 IF SHE HAD LONG ARMS SHE COULD 139 00:05:28,227 --> 00:05:30,229 PUSH DOWN ON THE FRONT AND THIS 140 00:05:30,229 --> 00:05:31,898 METER WOULD GO UP TOO. 141 00:05:31,898 --> 00:05:33,866 WHEN TUNING CARS, WE WANT TO 142 00:05:33,866 --> 00:05:35,268 KNOW HOW MUCH DOWN FORCE ON THE 143 00:05:35,268 --> 00:05:36,536 FRONT AND HOW MUCH IT PUSHING 144 00:05:36,536 --> 00:05:38,337 DOWN ON THE BACK. 145 00:05:38,337 --> 00:05:40,306 >> Beth: SHOW US HOW THE WIND 146 00:05:40,306 --> 00:05:43,409 TUNNEL WORKS. 147 00:05:43,409 --> 00:05:44,610 >> WE'RE GOING TO HAVE GRAHAM 148 00:05:44,610 --> 00:05:47,580 FIRE UP THE FAN AND IT BLOWS AIR 149 00:05:47,580 --> 00:05:48,381 OVER THE CAR. 150 00:05:48,381 --> 00:05:51,617 YOU CAN WATCH THESE NUMBERS 151 00:05:51,617 --> 00:05:51,951 CHANGE. 152 00:05:51,951 --> 00:05:53,219 YOU CAN SEE THE NUMBERS ARE 153 00:05:53,219 --> 00:05:54,520 ACTUALLY GOING UP BECAUSE THE 154 00:05:54,520 --> 00:05:57,023 AIR IS PUSHING DOWN ON THE CAR. 155 00:05:57,023 --> 00:05:58,925 OVER ON THIS SIDE ON REAR DOWN 156 00:05:58,925 --> 00:06:00,727 FORCE, YOU CAN SEE THERE'S ABOUT 157 00:06:00,727 --> 00:06:04,130 A LITTLE OVER .7 POUNDS OF DOWN 158 00:06:04,130 --> 00:06:05,665 FORCE THE AIR IS CREATING ON THE 159 00:06:05,665 --> 00:06:06,399 BACK OF THE CAR. 160 00:06:06,399 --> 00:06:07,934 AT THE FRONT, YOU CAN SEE 161 00:06:07,934 --> 00:06:11,637 THERE'S A LITTLE OVER .2, CHLOE 162 00:06:11,637 --> 00:06:13,706 IS GOING TO HELP US BECAUSE 163 00:06:13,706 --> 00:06:16,075 WE'RE GOING TO CHANGE THE SHAPE 164 00:06:16,075 --> 00:06:18,144 TO MAKE MORE REAR DOWN FORCE, 165 00:06:18,144 --> 00:06:19,812 WE'LL ADD A LARGER SPOILER TO 166 00:06:19,812 --> 00:06:24,150 THE BACK OF THE CAR. 167 00:06:24,150 --> 00:06:25,752 AND YOU CAN SEE THE REAR DOWN 168 00:06:25,752 --> 00:06:28,221 FORCE THAT USED TO BE ABOUT .7 169 00:06:28,221 --> 00:06:33,126 IS NOW UP IN THE 1.1, ALMOST 1.2 170 00:06:33,126 --> 00:06:33,459 RANGE. 171 00:06:33,459 --> 00:06:35,695 WE INCREASED THE REAR DOWN FORCE 172 00:06:35,695 --> 00:06:38,698 WHICH MAKES THE REAR TIRES GRIP 173 00:06:38,698 --> 00:06:40,600 THE RACETRACK AND ALLOW THE CAR 174 00:06:40,600 --> 00:06:42,301 TO GO FASTER. 175 00:06:42,301 --> 00:06:43,636 >> Beth: DOWN FORCE IS ALL ABOUT 176 00:06:43,636 --> 00:06:44,737 GOING FASTER. 177 00:06:44,737 --> 00:06:46,005 >> YES. 178 00:06:46,005 --> 00:06:49,375 >> RECENTLY WE GOT CHANCE TO 179 00:06:49,375 --> 00:06:53,412 TALK TO JACOB WALLACE, NASCAR 180 00:06:53,412 --> 00:06:54,380 K&N SERIES DRIVER. 181 00:06:54,380 --> 00:06:57,583 HE TALKED ABOUT HOW DOWN FORCE 182 00:06:57,583 --> 00:07:00,987 EFFECTS HIM ON THE TRACK. 183 00:07:00,987 --> 00:07:02,421 >> DOWN FORCE AFFECTS DRIVING 184 00:07:02,421 --> 00:07:03,890 CONDITIONS ON DIFFERENT TRACKS, 185 00:07:03,890 --> 00:07:05,024 DEPENDING ON THE SIZE. 186 00:07:05,024 --> 00:07:06,926 ON A SMALL TRACK WHERE YOU HAVE 187 00:07:06,926 --> 00:07:11,430 VERY TIGHT CORNERS, YOUR 188 00:07:11,430 --> 00:07:13,032 STRAIGHT' WAYS AREN'T AS LONG SO 189 00:07:13,032 --> 00:07:14,467 YOU DON'T FEEL THE SPEED AS YOU 190 00:07:14,467 --> 00:07:15,935 WOULD ON A BIGGER TRACK. 191 00:07:15,935 --> 00:07:17,637 THE CORNERS, WHERE YOU'RE 192 00:07:17,637 --> 00:07:19,472 PRODUCING A LOT OF DOWN FORCE 193 00:07:19,472 --> 00:07:21,407 AND SIDE FORCE, YOU GET PUSHED 194 00:07:21,407 --> 00:07:23,042 DOWN INTO YOUR SEAT WHEN 195 00:07:23,042 --> 00:07:23,409 CORNERING. 196 00:07:23,409 --> 00:07:26,245 ON A BIGGER TRACK, SAY GOING 197 00:07:26,245 --> 00:07:28,381 DOWN THE STRAIGHT AWAY, YOU 198 00:07:28,381 --> 00:07:30,983 DON'T FEEL THAT FORCE PUSHING 199 00:07:30,983 --> 00:07:32,351 INTO YOU. 200 00:07:32,351 --> 00:07:34,987 WHAT YOU DO FEEL IS THE CAR -- 201 00:07:34,987 --> 00:07:36,923 IT'S ALMOST LIKE A DELAY TO THE 202 00:07:36,923 --> 00:07:37,223 LEFT. 203 00:07:37,223 --> 00:07:38,724 YOU HAVE MORE AIR THAT'S RUSHING 204 00:07:38,724 --> 00:07:41,761 OVER THE CAR AND UNDER THE CAR 205 00:07:41,761 --> 00:07:44,096 AND IDEALLY YOU WANT YOUR CAR 206 00:07:44,096 --> 00:07:45,932 PUSHED DOWN AS MUCH INTO THE 207 00:07:45,932 --> 00:07:47,066 TRACK BUT THERE'S GOING TO BE 208 00:07:47,066 --> 00:07:49,202 AIR COMING UNDER THE CAR AS 209 00:07:49,202 --> 00:07:49,502 WELL. 210 00:07:49,502 --> 00:07:51,771 THAT STARTS TO LIFT THE CAR UP 211 00:07:51,771 --> 00:07:53,172 DOWN FORCE HELPS DELIVER SPEED 212 00:07:53,172 --> 00:07:54,941 AND SPEED IS GOOD. 213 00:07:54,941 --> 00:07:57,176 ALONG WITH DOWN FORCE COMES 214 00:08:02,114 --> 00:07:57,476 DRAG. 215 00:08:02,114 --> 00:08:04,183 >> I'VE GOT TO FRIEND THAT WILL 216 00:08:04,183 --> 00:08:05,952 HELP ME, CHASE, WAY UP AT THE 217 00:08:05,952 --> 00:08:07,620 TOP OF GLORY ROAD. 218 00:08:07,620 --> 00:08:09,255 I SAW CHASE WALK IN AND I WAS 219 00:08:09,255 --> 00:08:11,490 LIKE, THERE IS A FAST DUDE. 220 00:08:11,490 --> 00:08:12,992 AND HE'S SO FAST THAT HE'S GOING 221 00:08:12,992 --> 00:08:14,093 TO RUN FOR US. 222 00:08:14,093 --> 00:08:15,761 BUT WE DECIDED WE PROBABLY 223 00:08:15,761 --> 00:08:17,597 NEEDED TO SLOW HIM DOWN A LITTLE 224 00:08:17,597 --> 00:08:20,032 BIT SO WE ATTACHED A PARACHUTE 225 00:08:20,032 --> 00:08:21,033 TO HIS BACK. 226 00:08:21,033 --> 00:08:22,668 NICK IS HELPING HIM. 227 00:08:22,668 --> 00:08:24,337 HE'S LIKE THE PIT CREW. 228 00:08:24,337 --> 00:08:25,938 I'M GOING TO TELL CHASE TO GO 229 00:08:25,938 --> 00:08:27,840 AND HE'S GOING TO RUN AS FAST AS 230 00:08:27,840 --> 00:08:29,308 HE CAN AND WE'RE GOING TO SEE 231 00:08:29,308 --> 00:08:31,711 WHAT HAPPENS WITH THE PARACHUTE. 232 00:08:31,711 --> 00:08:34,280 CHASE, ARE YOU READY? 233 00:08:34,280 --> 00:08:36,616 ON YOUR MARK, GET SET, GO! 234 00:08:36,616 --> 00:08:38,184 HERE HE COMES. 235 00:08:38,184 --> 00:08:39,752 HE'S GIVING IT SOME GAS. 236 00:08:39,752 --> 00:08:43,055 COME ON AROUND THE CURVE. 237 00:08:43,055 --> 00:08:44,857 ALL RIGHT, NICE JOB. 238 00:08:44,857 --> 00:08:46,859 COME ON BACK, CHASE. 239 00:08:46,859 --> 00:08:48,861 THAT WAS REALLY GOOD. 240 00:08:48,861 --> 00:08:50,129 HOW DID THAT FEEL? 241 00:08:50,129 --> 00:08:51,063 >> IT WAS TOUGH WITH THE 242 00:08:51,063 --> 00:08:51,831 PARACHUTE ON. 243 00:08:51,831 --> 00:08:52,331 >> WHY? 244 00:08:52,331 --> 00:08:53,799 >> BECAUSE THE FORCE OF THE AIR 245 00:08:53,799 --> 00:08:56,936 IN THE PARACHUTE SLOWED ME DOWN. 246 00:08:56,936 --> 00:08:58,638 >> YOU'VE RUN WITH A PARACHUTE 247 00:08:58,638 --> 00:08:59,639 BEFORE? 248 00:08:59,639 --> 00:09:00,039 >> YES. 249 00:09:00,039 --> 00:09:00,606 >> FOR TRAINING. 250 00:09:00,606 --> 00:09:01,974 >> BECAUSE YOU'RE A RUNNER. 251 00:09:01,974 --> 00:09:02,375 >> YES. 252 00:09:02,375 --> 00:09:04,610 >> KURT AND BETH, WHY IS THAT SO 253 00:09:04,610 --> 00:09:07,346 MUCH HARDER TO RUN WITH A 254 00:09:07,346 --> 00:09:09,849 PARACHUTE? 255 00:09:09,849 --> 00:09:10,349 >> Beth: WHY? 256 00:09:10,349 --> 00:09:11,217 >> Marty: LIKE JACOB SAID, DRAG 257 00:09:11,217 --> 00:09:11,617 IS DRAG. 258 00:09:11,617 --> 00:09:13,019 YOU COULD SEE THROUGH CHASE THAT 259 00:09:13,019 --> 00:09:14,453 THAT PARACHUTE WAS PULLING HIM 260 00:09:14,453 --> 00:09:17,490 BACK AND THE FORCES PULLING HIM 261 00:09:17,490 --> 00:09:19,692 BACK IS AERODYNAMIC DRAMATIC. 262 00:09:19,692 --> 00:09:22,161 WE ADDED DRAG TO CHASE, WHICH IS 263 00:09:22,161 --> 00:09:23,796 THE OPPOSITE-OF-WHAT WE WANT TO 264 00:09:23,796 --> 00:09:25,131 DO TO THE RACE CARS. 265 00:09:25,131 --> 00:09:26,999 THE RACE CARS HAVE MOTORS THAT 266 00:09:26,999 --> 00:09:28,868 PRODUCE HORSEPOWER AND THAT 267 00:09:28,868 --> 00:09:33,172 HORSEPOWER IS USED TO OVERCOME 268 00:09:33,172 --> 00:09:35,341 THE AERODYNAMIC DRAG. 269 00:09:35,341 --> 00:09:37,143 IF UF 300 POUNDS, YOU HAVE TO 270 00:09:37,143 --> 00:09:39,779 HAVE MORE THAN 300 POUNDS GOING 271 00:09:39,779 --> 00:09:42,148 FORWARD CREATED BY THE THE 272 00:09:42,148 --> 00:09:42,715 ENGINE. 273 00:09:42,715 --> 00:09:45,918 IF WE MINIMIZE THE DRAG WE MAKE 274 00:09:45,918 --> 00:09:47,053 THE CARGO FASTER. 275 00:09:47,053 --> 00:09:48,554 >> Beth: IS THAT WHY WE DON'T 276 00:09:48,554 --> 00:09:53,326 HAVE SIDE VIEW MIRRORS AND 277 00:09:53,326 --> 00:09:54,060 HEADLIGHTS. 278 00:09:54,060 --> 00:09:54,527 >> EXACTLY. 279 00:09:54,527 --> 00:09:56,429 IF YOU LOOK ON YOUR MOM AND 280 00:09:56,429 --> 00:09:59,365 DAD'S CARS, YOU SEE SIDE VIEW 281 00:09:59,365 --> 00:10:00,866 MIRRORS, HEADLIGHTS RIGHT HERE, 282 00:10:00,866 --> 00:10:01,968 DOOR HANDLES IN HERE. 283 00:10:01,968 --> 00:10:03,669 THE RACE CARS DON'T HAVE THOSE. 284 00:10:03,669 --> 00:10:06,572 BUT FOR ONE REASON, IT'S TO 285 00:10:06,572 --> 00:10:08,274 REDUCE THE AERODYNAMIC DRAG. 286 00:10:08,274 --> 00:10:09,575 THERE'S A LOT OF THINGS ON THE 287 00:10:09,575 --> 00:10:12,545 CARS WE TAKE OFF SO IN CASE OF 288 00:10:12,545 --> 00:10:15,448 AN ACCIDENT, THOSE PARTS DON'T 289 00:10:15,448 --> 00:10:16,382 FLY INTO THE OTHER CARS. 290 00:10:16,382 --> 00:10:19,352 IN THIS CASE WE'RE LOOKING AT 291 00:10:19,352 --> 00:10:22,621 AERODYNAMIC DRAG AND REDUCING IT 292 00:10:22,621 --> 00:10:24,290 TO GO FASTER. 293 00:10:24,290 --> 00:10:26,525 >> Beth: NASCAR NEEDS TO REDUCE 294 00:10:26,525 --> 00:10:29,295 DRAG BUT NASA HAS TO THINK ABOUT 295 00:10:29,295 --> 00:10:29,662 DRAGS. 296 00:10:29,662 --> 00:10:31,664 IT OVER COMES DRAG TO GET OFF 297 00:10:31,664 --> 00:10:35,167 THE PLANET BUT USES TO LAND ON 298 00:10:35,167 --> 00:10:36,135 ANOTHER PLANET. 299 00:10:36,135 --> 00:10:41,607 RECENTLY WE TALKED TO NASA 300 00:10:41,607 --> 00:10:43,075 SCIENTIST RICK DAVIS. 301 00:10:43,075 --> 00:10:45,578 >> HOW DOES DRAG AFFECT ROCKETS? 302 00:10:45,578 --> 00:10:47,413 IT'S ACTUALLY INCREDIBLY 303 00:10:47,413 --> 00:10:48,247 IMPORTANT TO DEAL WITH. 304 00:10:48,247 --> 00:10:49,448 IF YOU THINK ABOUT WHEN YOU 305 00:10:49,448 --> 00:10:52,318 DRIVE AROUND IN YOUR CAR AND YOU 306 00:10:52,318 --> 00:10:54,153 STICK YOUR HAND OUT THE WINDOW 307 00:10:54,153 --> 00:10:58,057 AND PRESENT A FLAT SURFACE, 308 00:10:58,057 --> 00:10:59,525 THAT'S THE FORCE OF DRAG. 309 00:10:59,525 --> 00:11:02,795 WITH ROCKETS WE SPEND -- THIS IS 310 00:11:02,795 --> 00:11:04,930 VERY SLEEK AND SPINDLE. 311 00:11:04,930 --> 00:11:07,266 THE TOP, THE FIRST PART HITTING 312 00:11:07,266 --> 00:11:09,969 THE AIR IS LITERALLY EASING THE 313 00:11:09,969 --> 00:11:12,271 AIR AROUND HERE SO IT'S NOT A 314 00:11:12,271 --> 00:11:14,673 BIG, FLAT SURFACE HITTING THE 315 00:11:14,673 --> 00:11:16,075 AIR STRAIGHT ON. 316 00:11:16,075 --> 00:11:17,543 THAT'S CRUCIAL FOR ALLOWING US 317 00:11:17,543 --> 00:11:19,078 TO SUCCESSFULLY GET INTO SPACE. 318 00:11:19,078 --> 00:11:21,280 THERE ARE A COUPLE WAYS WE USE 319 00:11:21,280 --> 00:11:21,580 DRAG. 320 00:11:21,580 --> 00:11:24,150 I'M GOING TO TALK ABOUT LANDING 321 00:11:24,150 --> 00:11:25,751 ON MARS. 322 00:11:25,751 --> 00:11:28,287 WHEN WE APPROACH MARS WE'RE 323 00:11:28,287 --> 00:11:29,655 GOING 13,000 MILES AN HOUR, 324 00:11:29,655 --> 00:11:30,022 SCREAMING. 325 00:11:30,022 --> 00:11:31,624 WE HAVE TO SLOW THAT SPACECRAFT 326 00:11:31,624 --> 00:11:34,226 FROM THAT SPEED TO ZERO. 327 00:11:34,226 --> 00:11:35,628 AND SO THERE ARE ESSENTIALLY 328 00:11:35,628 --> 00:11:37,630 THREE WAYS THAT WE CURRENTLY USE 329 00:11:37,630 --> 00:11:39,565 DRAG TO MAKE THAT POSSIBLE. 330 00:11:39,565 --> 00:11:41,267 FIRST OF ALL, WHEN WE COME INTO 331 00:11:41,267 --> 00:11:42,668 THE ATMOSPHERE SOMETIMES WE CAN 332 00:11:42,668 --> 00:11:44,603 EVEN GO DIPPING INTO THE 333 00:11:44,603 --> 00:11:45,504 ATMOSPHERE SEVERAL TIMES AND 334 00:11:45,504 --> 00:11:47,606 EVERY TIME WE PASS THROUGH THE 335 00:11:47,606 --> 00:11:49,375 ATMOSPHERE, IT'S AMAZING, IT 336 00:11:49,375 --> 00:11:51,677 HELPS SLOW THE SPACECRAFT DOWN. 337 00:11:51,677 --> 00:11:53,479 FINALLY WHEN WE'RE READY TO 338 00:11:53,479 --> 00:11:57,283 LAND, THE NEXT THING WE DO IS 339 00:11:57,283 --> 00:11:59,685 WE -- THESE -- TYPICALLY WE HAVE 340 00:11:59,685 --> 00:12:01,821 A CAPSULELIKE STRUCTURE WITH A 341 00:12:01,821 --> 00:12:03,322 BOTTOM SIDE WHICH IS A SHIELD. 342 00:12:03,322 --> 00:12:05,891 THE SHIELD IS DESIGNED TO BE 343 00:12:05,891 --> 00:12:06,425 BURNT. 344 00:12:06,425 --> 00:12:07,927 AND WHEN IT IS COMING DOWN 345 00:12:07,927 --> 00:12:10,196 THROUGH THE ATMOSPHERE, AND THAT 346 00:12:10,196 --> 00:12:11,530 ENERGY -- THE ENERGY COMING ON 347 00:12:11,530 --> 00:12:13,666 TO THIS WILL SLOW IT DOWN AND 348 00:12:13,666 --> 00:12:15,634 IT'S -- IT GETS ITS SPEED 349 00:12:15,634 --> 00:12:16,836 COMPLETELY UNDER CONTROL. 350 00:12:16,836 --> 00:12:18,537 THAT IS NOT THE ONLY THING WE 351 00:12:18,537 --> 00:12:19,705 USE DRAG FOR, THOUGH. 352 00:12:19,705 --> 00:12:21,440 THE NEXT THING WE DO IS WHEN WE 353 00:12:21,440 --> 00:12:23,709 GET THIS THING SLOW ENOUGH WE 354 00:12:23,709 --> 00:12:27,880 RELEASE THESE ENORMOUS CHUTES, 355 00:12:27,880 --> 00:12:30,049 PARACHUTES, THAT HELP SLOW IT 356 00:12:30,049 --> 00:12:31,684 DOWN AND GENTLE DROP IT ON THE 357 00:12:31,684 --> 00:12:32,017 SURFACE. 358 00:12:32,017 --> 00:12:35,855 ALL THOSE THINGS ARE USING DRAG 359 00:12:35,855 --> 00:12:37,690 FUNDAMENTALLY TO ALLOW US TO DO 360 00:12:37,690 --> 00:12:38,924 SOMETHING COOL LIKE LAND ON 361 00:12:38,924 --> 00:12:42,628 ANOTHER PLANET. 362 00:12:42,628 --> 00:12:43,929 >> Beth: KURT, SHOULD WE TAKE 363 00:12:43,929 --> 00:12:45,064 QUESTIONS? 364 00:12:45,064 --> 00:12:45,464 >> SURE. 365 00:12:45,464 --> 00:12:46,899 >> Beth: LET'S START WITH A 366 00:12:46,899 --> 00:12:47,466 VIDEO QUESTION. 367 00:12:47,466 --> 00:12:50,169 >> I'M ELLA AND I'M WONDERING 368 00:12:50,169 --> 00:12:51,437 HOW MANY MEMBERS ARE ON A PIT 369 00:12:51,437 --> 00:12:53,906 CREW AND WHAT ARE THEIR ROLES? 370 00:12:53,906 --> 00:12:54,707 >> GOOD QUESTION. 371 00:12:54,707 --> 00:12:56,308 HOW MANY MEMBERS ARE ON A PIT 372 00:12:56,308 --> 00:12:56,609 CREW? 373 00:12:56,609 --> 00:12:59,178 WHAT WE HAVE IS WE'VE GOT SEVEN 374 00:12:59,178 --> 00:13:01,380 MEMBERS GOING OVER THE WALL. 375 00:13:01,380 --> 00:13:03,015 THERE'S A SHORT WALL ON PIT 376 00:13:03,015 --> 00:13:03,315 ROAD. 377 00:13:03,315 --> 00:13:05,317 WHEN THE CAR COMES IN, SEVEN 378 00:13:05,317 --> 00:13:07,019 CARS GO OVER THE WALL. 379 00:13:07,019 --> 00:13:09,155 A REAR TIRE CHANGER AND REAR 380 00:13:09,155 --> 00:13:11,390 TIRE CARRIER, A FRONT TIRE 381 00:13:11,390 --> 00:13:13,092 CHANGER AND FRONT TIRE CARRIER 382 00:13:13,092 --> 00:13:14,860 THAT CHANGE THE FRONT TIRES. 383 00:13:14,860 --> 00:13:16,996 A JACK MANBACKS THE CAR UP AND A 384 00:13:16,996 --> 00:13:19,798 FUEL MAN PUTS GAS IN THE CAR, 385 00:13:19,798 --> 00:13:21,800 THE SEVENTH MEMBER IS FOR DRIVER 386 00:13:21,800 --> 00:13:22,134 COMFORT. 387 00:13:22,134 --> 00:13:24,403 WE SEND HIM OVER THE WALL TO 388 00:13:24,403 --> 00:13:26,805 PULL A TEAROFF OFF THE 389 00:13:26,805 --> 00:13:28,474 WINDSHIELD, CLEANING THE 390 00:13:28,474 --> 00:13:28,874 WINDSHIELD. 391 00:13:28,874 --> 00:13:30,309 WE HAVE PLASTIC WRAP ON THE 392 00:13:30,309 --> 00:13:31,911 WINDSHIELD AND THERE'S TIRE AND 393 00:13:31,911 --> 00:13:33,412 DEBRIS THAT COMES OFF THE TRACK 394 00:13:33,412 --> 00:13:36,048 AND GETS ON THE WINDSHIELD SO WE 395 00:13:36,048 --> 00:13:37,783 PULL A TEAROFF OFF. 396 00:13:37,783 --> 00:13:39,385 ALL THAT IN LESS THAN 12 397 00:13:39,385 --> 00:13:40,452 SECONDS. 398 00:13:40,452 --> 00:13:42,221 >> Beth: YOU TALK ABOUT SEVEN 399 00:13:42,221 --> 00:13:43,756 MEN, WHAT IS THE WALL FOR? 400 00:13:43,756 --> 00:13:45,357 >> THE WALL IS TO SEPARATE THE 401 00:13:45,357 --> 00:13:47,393 RACE CAR FROM THE TEAMS. 402 00:13:47,393 --> 00:13:48,694 IT'S A SAFETY DEVICE. 403 00:13:48,694 --> 00:13:51,630 SO IF A CAR COMES SPINNING, IT 404 00:13:51,630 --> 00:13:53,265 HITS THE WALL AND DOESN'T GET 405 00:13:53,265 --> 00:13:54,200 INTO THE GUYS. 406 00:13:54,200 --> 00:13:54,700 >> Beth: OKAY. 407 00:13:54,700 --> 00:13:55,968 >> IT'S REALLY THERE TO PROTECT 408 00:13:55,968 --> 00:13:57,703 THE PEOPLE BEHIND THE WALL. 409 00:13:57,703 --> 00:14:00,072 >> Beth: LET'S TAKE AN ONLINE 410 00:14:00,072 --> 00:14:01,006 QUESTION. 411 00:14:01,006 --> 00:14:04,210 WHY NOT USE A DESIGN SIMILAR TO 412 00:14:04,210 --> 00:14:07,112 F1 CARS? 413 00:14:07,112 --> 00:14:08,447 WOULD THEIR SLEEK DESIGN CUT 414 00:14:08,447 --> 00:14:10,516 DOWN ON WIND RESISTANCE? 415 00:14:10,516 --> 00:14:11,550 >> THAT'S A GREAT QUESTION. 416 00:14:11,550 --> 00:14:13,052 IF YOU FOLLOW FORMULA ONE YOU 417 00:14:13,052 --> 00:14:14,920 CAN SEE THE HUGE DIFFERENCE 418 00:14:14,920 --> 00:14:16,422 BETWEEN FORMULA ONE CARS AND 419 00:14:16,422 --> 00:14:18,224 WHAT WE CALL STOCK CARS, THESE 420 00:14:18,224 --> 00:14:19,225 OVER HERE. 421 00:14:19,225 --> 00:14:22,528 FORMULA ONE CARS HAVE OPEN 422 00:14:22,528 --> 00:14:22,861 WHEELS. 423 00:14:22,861 --> 00:14:24,296 WHILE THESE AREN'T FORMULA ONE 424 00:14:24,296 --> 00:14:25,297 THEY LOOK LIKE THAT. 425 00:14:25,297 --> 00:14:27,299 THE WHEELS ARE NOT COVERED. 426 00:14:27,299 --> 00:14:29,101 BY THE WAY THEY HAVE GOT MORE 427 00:14:29,101 --> 00:14:30,803 DRAG THAN OUR CARS DO. 428 00:14:30,803 --> 00:14:32,104 SIGNIFICANTLY MORE DRAG. 429 00:14:32,104 --> 00:14:34,073 THEY'VE GOT MORE HORSEPOWER BUT 430 00:14:34,073 --> 00:14:34,840 MORE DRAG. 431 00:14:34,840 --> 00:14:37,610 THEY ALSO PRODUCE MORE 432 00:14:37,610 --> 00:14:38,010 DOWNFORCE. 433 00:14:38,010 --> 00:14:39,411 THE WINGS IN THE FRONT AND BACK, 434 00:14:39,411 --> 00:14:42,448 WE HAVE A SPOILER AND A VALANCE. 435 00:14:42,448 --> 00:14:43,983 THE REASON THESE CARS LOOK THAT 436 00:14:43,983 --> 00:14:46,518 WAY IS BECAUSE THIS RACING WAS 437 00:14:46,518 --> 00:14:47,620 BASED ON PRODUCTION CARS, THE 438 00:14:47,620 --> 00:14:49,488 CARS YOUR MOTHER AND FATHER 439 00:14:49,488 --> 00:14:51,223 WOULD DRIVE YEARS AGO. 440 00:14:51,223 --> 00:14:54,994 SO THE MANUFACTURERS AND NASCAR 441 00:14:54,994 --> 00:14:56,528 WANTED TO MAINTAIN THE JUMP 442 00:14:56,528 --> 00:14:57,630 BETWEEN A PRODUCTION CAR AND 443 00:14:57,630 --> 00:14:58,697 RACE CAR. 444 00:14:58,697 --> 00:15:00,633 SO THE RULES FOR FORMULA ONE 445 00:15:00,633 --> 00:15:02,701 CARS ARE WIDE OPEN IN SHAPES. 446 00:15:02,701 --> 00:15:05,371 BUT THE RULES FOR STOCK CARS, 447 00:15:05,371 --> 00:15:06,939 THEY WANT TO MAINTAIN THE 448 00:15:06,939 --> 00:15:07,773 CONNECTION BETWEEN A PRODUCTION 449 00:15:07,773 --> 00:15:09,208 CAR AND RACE CAR. 450 00:15:09,208 --> 00:15:11,644 >> Beth: DO THE SAME PEOPLE WHO 451 00:15:11,644 --> 00:15:13,045 BUILD MY CAR THAT I DRIVE TO 452 00:15:13,045 --> 00:15:16,015 WORK, DO THEY BUILD THE NASCAR 453 00:15:16,015 --> 00:15:16,682 CARS? 454 00:15:16,682 --> 00:15:19,752 >> THE ORIGINAL MANUFACTURER -- 455 00:15:19,752 --> 00:15:21,086 FOR INSTANCE AT ROUCHE FENWAY WE 456 00:15:21,086 --> 00:15:22,821 GET THE A LOT OF PARTS AND 457 00:15:22,821 --> 00:15:24,089 SUPPORT FROM THE MANUFACTURER. 458 00:15:24,089 --> 00:15:25,724 DO THEY BUILD THE CARS? 459 00:15:25,724 --> 00:15:28,193 THEY BUILD A LOT OF STAMPINGS, 460 00:15:28,193 --> 00:15:28,927 STEEL BODY PARTS. 461 00:15:28,927 --> 00:15:33,065 BUT THE REST OF IT HAS ALL 462 00:15:33,065 --> 00:15:34,833 MIGRATED TOWARD A RACING TYPE OF 463 00:15:34,833 --> 00:15:36,335 OPERATION RATHER THAN 464 00:15:36,335 --> 00:15:37,403 PRODUCTION. 465 00:15:37,403 --> 00:15:38,003 >> Beth: OKAY. 466 00:15:38,003 --> 00:15:40,039 WHO HAS MY FIRST AUDIENCE 467 00:15:40,039 --> 00:15:40,406 QUESTION? 468 00:15:40,406 --> 00:15:41,907 COME ON UP. 469 00:15:41,907 --> 00:15:43,242 >> I WAS WONDERING HOW THE BUILD 470 00:15:43,242 --> 00:15:44,576 OF A REGULAR CAR IS DIFFERENT 471 00:15:44,576 --> 00:15:46,145 FROM A RACE CAR. 472 00:15:46,145 --> 00:15:47,446 >> WELL, THERE'S ACTUALLY QUITE 473 00:15:47,446 --> 00:15:48,314 A FEW THINGS. 474 00:15:48,314 --> 00:15:49,481 IF YOU THINK ABOUT THE CAR THAT 475 00:15:49,481 --> 00:15:51,884 YOUR MOM AND DAD DRIVE, YOU GET 476 00:15:51,884 --> 00:15:53,185 IN AND THERE'S SEATS IN THE 477 00:15:53,185 --> 00:15:54,486 FRONT AND SEATS IN THE BACK. 478 00:15:54,486 --> 00:15:56,689 IN A RACE CAR THERE'S ONE SEAT, 479 00:15:56,689 --> 00:15:58,023 JUST THE DRIVER. 480 00:15:58,023 --> 00:15:59,591 WHEN YOU'RE DRIVING DOWN THE 481 00:15:59,591 --> 00:16:01,026 ROAD AND YOU'RE WARM, YOU CAN 482 00:16:01,026 --> 00:16:03,329 TURN THE AIR CONDITIONER ON, 483 00:16:03,329 --> 00:16:03,662 RIGHT? 484 00:16:03,662 --> 00:16:05,597 NO AIR CONDITIONERS IN RACE 485 00:16:05,597 --> 00:16:05,898 CARS. 486 00:16:05,898 --> 00:16:07,266 YOU CAN ROLL THE WINDOW DOWN BUT 487 00:16:07,266 --> 00:16:08,701 YOU CAN'T IN RACE CARS. 488 00:16:08,701 --> 00:16:10,703 EVERYTHING ON THE INSIDE OF THE 489 00:16:10,703 --> 00:16:12,237 CAR IS TAKEN OUT. 490 00:16:12,237 --> 00:16:13,906 IT'S VERY SPARTAN. 491 00:16:13,906 --> 00:16:15,674 NOT VERY MUCH TO KEEP IT LIGHT. 492 00:16:15,674 --> 00:16:17,276 WE WANT TO KEEP THE CARS VERY 493 00:16:17,276 --> 00:16:19,511 LIGHT BUT STRONG. 494 00:16:19,511 --> 00:16:24,083 THE STRUCTURE OF A RACE CAR IS 495 00:16:24,083 --> 00:16:25,451 TUBE STEEL WELDED TOGETHER. 496 00:16:25,451 --> 00:16:27,453 THE STRUCTURE OF YOUR MOM AND 497 00:16:27,453 --> 00:16:29,121 DAD'S CAR IS STAMPED STEEL 498 00:16:29,121 --> 00:16:31,890 WELDED TOGETHER BUT THE STAMP 499 00:16:31,890 --> 00:16:33,692 STEEL CAR HAS MORE ROOM INSIDE. 500 00:16:33,692 --> 00:16:35,327 YOU CAN KEEP YOUR BROTHERS AND 501 00:16:35,327 --> 00:16:36,362 SISTERS IN THE BACK. 502 00:16:36,362 --> 00:16:37,796 THERE'S NO BACKSEAT IN THESE 503 00:16:37,796 --> 00:16:38,097 CARS. 504 00:16:38,097 --> 00:16:39,498 SO THAT'S A LITTLE BIT OF A 505 00:16:39,498 --> 00:16:41,200 DIFFERENCE BETWEEN PRODUCTION 506 00:16:41,200 --> 00:16:42,501 AND RACE CARS. 507 00:16:42,501 --> 00:16:43,102 GREAT QUESTION. 508 00:16:43,102 --> 00:16:45,337 >> Beth: LET'S TAKE A VIDEO 509 00:16:45,337 --> 00:16:46,071 QUESTION. 510 00:16:46,071 --> 00:16:47,639 >> HI, I'M SARAH. 511 00:16:47,639 --> 00:16:49,208 MY QUESTION IS CARS HAVE TIRES 512 00:16:49,208 --> 00:16:51,143 THAT ARE FILLED WITH OXYGEN AND 513 00:16:51,143 --> 00:16:55,647 NITROGEN, WHICH WORKS ABOUT 514 00:16:55,647 --> 00:16:56,448 BETTER FOR NASCAR. 515 00:16:56,448 --> 00:16:59,184 >> THE QUESTION IS DO WE RUN 516 00:16:59,184 --> 00:17:01,253 NITROGEN AND OXYGEN INSIDE THE 517 00:17:01,253 --> 00:17:02,121 TIRES? 518 00:17:02,121 --> 00:17:04,957 NO, WE USE PRIMELY NITROGEN. 519 00:17:04,957 --> 00:17:06,458 NITROGEN IS INERT GAS WHICH 520 00:17:06,458 --> 00:17:08,761 MEANS AS IT HEATS UP, IT DOESN'T 521 00:17:08,761 --> 00:17:10,229 EXPAND VERY MUCH. 522 00:17:10,229 --> 00:17:11,997 IT EXPANDS A LITTLE BUT NOT 523 00:17:11,997 --> 00:17:12,331 MUCH. 524 00:17:12,331 --> 00:17:14,166 THE REASON WE LIKE THAT IS 525 00:17:14,166 --> 00:17:16,101 BECAUSE THE TIRE IS A MAJOR 526 00:17:16,101 --> 00:17:18,103 PORTION OF HOW THE CAR HANDLES. 527 00:17:18,103 --> 00:17:20,739 AND THE TIRE BASED ON ITS 528 00:17:20,739 --> 00:17:22,074 CONSTRUCTION, HAS A SPRING RATE 529 00:17:22,074 --> 00:17:23,709 TO IT. 530 00:17:23,709 --> 00:17:26,612 WE CHANGE -- ON A PIT STOP WE'LL 531 00:17:26,612 --> 00:17:28,247 CHANGE A QUARTER POUND OF AIR IN 532 00:17:28,247 --> 00:17:29,748 THE TIRES AS AN ADJUSTMENT. 533 00:17:29,748 --> 00:17:35,087 A VERY, VERY MINUTE ADJUSTMENT 534 00:17:35,087 --> 00:17:37,055 BUT IT CHANGES HOW THE CAR 535 00:17:37,055 --> 00:17:37,389 HANDLES. 536 00:17:37,389 --> 00:17:38,924 THE DRIVER SAYS IT DOES ONE 537 00:17:38,924 --> 00:17:42,461 THING, WE CORRECT IT ON A PIT 538 00:17:42,461 --> 00:17:42,761 STOP. 539 00:17:42,761 --> 00:17:46,999 WE USE NITROGEN MAKE THEM GO 540 00:17:46,999 --> 00:17:47,332 FASTER. 541 00:17:47,332 --> 00:17:48,267 >> Beth: WE HAVE TALKED ABOUT 542 00:17:48,267 --> 00:17:49,968 DOWN FORCE AND DRAG BUT THERE'S 543 00:17:49,968 --> 00:17:51,837 ONE MORE D, DRAFTING. 544 00:17:51,837 --> 00:17:54,907 AND WE TALKED TO JACOB WALLACE 545 00:17:54,907 --> 00:17:55,774 ABOUT DRAFTING. 546 00:17:55,774 --> 00:17:57,176 >> THE BEST WAY TO EXPLAIN 547 00:17:57,176 --> 00:18:04,216 DRAFTING IS TO THINK OF AIR AS 548 00:18:04,216 --> 00:18:07,286 MOLD USELESS. 549 00:18:07,286 --> 00:18:08,454 -- MOLECULES. 550 00:18:08,454 --> 00:18:09,855 YOU HAVE TO MOVE THEM OUT OF THE 551 00:18:09,855 --> 00:18:10,122 WAY. 552 00:18:10,122 --> 00:18:13,959 THE WAY DRAFTING HELPS IS BY 553 00:18:13,959 --> 00:18:15,527 HAVING TWO CARS GET IN LINE. 554 00:18:15,527 --> 00:18:17,563 THE FIRST CAR IS MOVING THE AIR 555 00:18:17,563 --> 00:18:20,165 MOLECULES OUT OF THE WAY AND THE 556 00:18:20,165 --> 00:18:22,301 SECOND CAR BEHIND, THOSE AIR 557 00:18:22,301 --> 00:18:25,003 MOLECULES FLOAT OVER THE SECOND 558 00:18:25,003 --> 00:18:26,405 CAR WITHOUT BOUNCING INTO THE 559 00:18:26,405 --> 00:18:28,740 FRONT BUMPER. 560 00:18:28,740 --> 00:18:31,610 DRAFTING IS LIKE DRAFTING BUT 561 00:18:31,610 --> 00:18:33,879 BEING AS CLOSE AS POSSIBLE TO 562 00:18:33,879 --> 00:18:39,017 THE DRIVER IN FRONT OF YOU. 563 00:18:39,017 --> 00:18:40,552 RIGHT ON THE BUMPER. 564 00:18:40,552 --> 00:18:42,621 THE FEELING OF BUMP DRAFTING, IF 565 00:18:42,621 --> 00:18:45,257 YOU'RE THE BUMPER, ISN'T THAT 566 00:18:45,257 --> 00:18:47,759 SCARY BECAUSE YOU FEEL LIKE YOU 567 00:18:47,759 --> 00:18:48,827 HAVE MORE CONTROL BECAUSE YOU'RE 568 00:18:48,827 --> 00:18:51,063 THE ONE DOING THE BUMPING. 569 00:18:51,063 --> 00:18:53,565 IT'S MUCH SCARE YOUR IF YOU'RE 570 00:18:53,565 --> 00:18:54,933 BEING BUMPED BECAUSE YOU CAN SEE 571 00:18:54,933 --> 00:18:56,268 THE CAR COMING IN YOUR REARVIEW 572 00:18:56,268 --> 00:18:59,571 MIRROR BUT YOU'RE NOT 100% SURE 573 00:18:59,571 --> 00:19:00,739 HOW MUCH FORCE THEY'RE GOING TO 574 00:19:00,739 --> 00:19:02,241 HIT YOU WITH AND YOU'RE NOT SURE 575 00:19:02,241 --> 00:19:05,010 IF IT'S GOING TO BE ENOUGH FORCE 576 00:19:05,010 --> 00:19:11,250 TO GET YOUR CAR UNSETTLED. 577 00:19:11,250 --> 00:19:14,019 >> LAYTON IS PUTTING ON A RACE 578 00:19:14,019 --> 00:19:17,723 WORN SUIT WORN BY KYLE BUSCH AND 579 00:19:17,723 --> 00:19:22,361 THERE IS COOL.Y 580 00:19:22,361 --> 00:19:23,228 IT'S A FIRE SUIT. 581 00:19:23,228 --> 00:19:25,163 >> IT'S IN CASE OF AN ACCIDENT. 582 00:19:25,163 --> 00:19:27,499 WE CARRY 22 GALLONS OF FUEL AND 583 00:19:27,499 --> 00:19:29,268 IF THERE'S ACCIDENTS, THAT FUEL 584 00:19:29,268 --> 00:19:31,670 CAN SPILL AND SLOSH ALL OVER. 585 00:19:31,670 --> 00:19:34,139 THERE'S A SMALL CHANCE THAT IT A 586 00:19:34,139 --> 00:19:35,173 DRIVER COULD BE INSIDE A CAR 587 00:19:35,173 --> 00:19:37,576 WITH A FIRE INSIDE OF IT. 588 00:19:37,576 --> 00:19:40,145 THESE FIRE SUITS, THEY'RE NOT 589 00:19:40,145 --> 00:19:41,813 FIRE -- THEY'RE FIRE PROTECTION, 590 00:19:41,813 --> 00:19:44,550 THEY'RE NOT FIRE -- YOU CAN 591 00:19:44,550 --> 00:19:46,351 EVENTUALLY GET HARMED BUT THESE 592 00:19:46,351 --> 00:19:48,654 ARE MADE OF MATERIALS FROM SFI 593 00:19:48,654 --> 00:19:51,490 WITH A RESISTANCE RATING, 594 00:19:51,490 --> 00:19:52,958 WHETHER 30 SECONDS OR A MINUTE. 595 00:19:52,958 --> 00:19:54,226 A DRIVER CAN BE INSIDE A FIRE 596 00:19:54,226 --> 00:19:55,460 AND BECAUSE HE'S COVERED FROM 597 00:19:55,460 --> 00:19:57,963 HEAD TO TOE BETWEEN THE HELMET, 598 00:19:57,963 --> 00:20:00,365 THE SUIT, GLOVES AND FOOTWEAR 599 00:20:00,365 --> 00:20:02,034 HE'S SAFE UP TO A MINUTE INSIDE 600 00:20:02,034 --> 00:20:03,468 OF A BURNING CAR. 601 00:20:03,468 --> 00:20:05,637 THAT GIVES HIM THE OPPORTUNITY 602 00:20:05,637 --> 00:20:07,606 TO GET THE WINDOW NET DOWN AND 603 00:20:07,606 --> 00:20:08,907 GET OUT. 604 00:20:08,907 --> 00:20:11,376 >> HOW DOES THAT FEEL? 605 00:20:11,376 --> 00:20:12,511 >> IT'S HOT AND HALF. 606 00:20:12,511 --> 00:20:14,246 >> IT LOOKS HOT AND HEAVY. 607 00:20:14,246 --> 00:20:15,581 >> IT IS HOT AND HEAVY. 608 00:20:15,581 --> 00:20:18,750 THE DRIVERS ALSO HAVE A SET OF 609 00:20:18,750 --> 00:20:19,585 UNDERGARMENTS, SHIRTS AND PANTS, 610 00:20:19,585 --> 00:20:20,652 THAT ARE UNDERNEATH THIS AND 611 00:20:20,652 --> 00:20:22,387 MAKES IT EVEN HOTTER. 612 00:20:22,387 --> 00:20:26,325 INSIDE A RACE CAR IT CAN BE 130, 613 00:20:26,325 --> 00:20:27,626 140 DEGREES FOR UP TO FOUR HOURS 614 00:20:27,626 --> 00:20:31,129 SO IT'S HOT INSIDE. 615 00:20:31,129 --> 00:20:31,964 IT'S A TRADE OFF. 616 00:20:31,964 --> 00:20:35,334 YOU WANT TO KEEP THEM SAFE BUT 617 00:20:35,334 --> 00:20:35,734 COMFORTABLE. 618 00:20:35,734 --> 00:20:37,035 >> Marty: AND ENGINE BEHIND US 619 00:20:37,035 --> 00:20:37,603 GATES HOT. 620 00:20:37,603 --> 00:20:39,237 >> EVERYTHING ABOUT THE CAR IS 621 00:20:39,237 --> 00:20:39,504 HOT. 622 00:20:39,504 --> 00:20:41,073 >> Marty: A SUIT LIKE THIS HAS A 623 00:20:41,073 --> 00:20:42,507 STRONG CONNECTION TO NASA. 624 00:20:42,507 --> 00:20:46,578 >> IT DOES, THIS IS A FIRE 625 00:20:46,578 --> 00:20:48,513 RESISTANT SUIT. 626 00:20:48,513 --> 00:20:49,314 THE ASTRONAUTS WEAR SOMETHING 627 00:20:49,314 --> 00:20:50,082 LIKE THIS. 628 00:20:50,082 --> 00:20:53,819 THEY'RE ON TOP OF A ROMAN CANDLE 629 00:20:53,819 --> 00:20:55,587 AND THERE'S A POSSIBILITY OF AN 630 00:20:55,587 --> 00:20:55,988 ACCIDENTAL. 631 00:20:55,988 --> 00:20:57,155 YOU HAVE TO GIVE THEM TIME TO 632 00:20:57,155 --> 00:20:59,291 GET AWAY OF THE SPACECRAFT. 633 00:20:59,291 --> 00:21:00,492 >> Marty: BETH GOT A CHANCE TO 634 00:21:00,492 --> 00:21:03,895 WEAR A SUIT LIKE THIS AND I'M A 635 00:21:03,895 --> 00:21:06,098 LITTLE BIT JEALOUS BECAUSE SHE 636 00:21:06,098 --> 00:21:09,034 GOT TO GO ON A NASCAR RIDE 637 00:21:09,034 --> 00:21:09,334 ALONG. 638 00:21:09,334 --> 00:21:12,270 CHECK THIS OUT. 639 00:21:12,270 --> 00:21:15,874 >> AT ATLANTA, I HAD TOO MUCH 640 00:21:15,874 --> 00:21:18,677 WEIGHT DOWN THE BACK STRETCH. 641 00:21:18,677 --> 00:21:19,344 >> Beth: OH, GOSH. 642 00:21:19,344 --> 00:21:20,979 SHUT UP. 643 00:21:20,979 --> 00:21:22,781 TODAY I'M AT THE RICHMOND 644 00:21:22,781 --> 00:21:23,482 INTERNATIONAL RACEWAY WITH 645 00:21:23,482 --> 00:21:26,485 WARREN LIPFORD, MY DRIVER ON 646 00:21:26,485 --> 00:21:27,519 THIS ADVENTURE. 647 00:21:27,519 --> 00:21:27,919 THANK YOU. 648 00:21:27,919 --> 00:21:29,287 >> NO PROBLEM. 649 00:21:29,287 --> 00:21:32,190 >> HOW FAST ARE WE GOING TO GO? 650 00:21:32,190 --> 00:21:34,626 >> PROBABLE IS 135, 140. 651 00:21:34,626 --> 00:21:36,461 >> Beth: TYPICALLY WHEN YOU'RE 652 00:21:36,461 --> 00:21:38,196 RACING, HOW FAST DO YOU GO? 653 00:21:38,196 --> 00:21:42,768 >> HITTING CLOSE TO 160, 170. 654 00:21:42,768 --> 00:21:44,369 WHEN YOU DRIVE, YOU JUST GO IN 655 00:21:44,369 --> 00:21:47,539 THE CORNER, GIVE IT GAS, LET 656 00:21:47,539 --> 00:21:47,806 OFF. 657 00:21:47,806 --> 00:21:51,176 YOU FEEL THE G'S AND TRY NOT TO 658 00:21:51,176 --> 00:21:51,476 WRECK. 659 00:21:51,476 --> 00:21:52,978 SEE HOW SHE GOES. 660 00:21:52,978 --> 00:21:53,879 >> Beth: ALL RIGHT. 661 00:21:53,879 --> 00:21:55,914 I'M NERVOUS ABOUT THIS BUT LET'S 662 00:21:55,914 --> 00:22:04,189 JUST DO IT. 663 00:22:04,189 --> 00:22:04,623 >> READY? 664 00:22:04,623 --> 00:22:06,291 >> Beth: READY AS I'M GOING TO 665 00:22:06,291 --> 00:22:23,608 BE. 666 00:23:03,849 --> 00:23:04,883 THAT WAS A RIDE AROUND RICHMOND. 667 00:23:04,883 --> 00:23:09,287 >> Beth: THAT WAS AWESOME. 668 00:23:09,287 --> 00:23:13,325 COMPLETELY AWESOME! 669 00:23:13,325 --> 00:23:14,426 OKAY. 670 00:23:14,426 --> 00:23:16,361 SO I'VE GOT TO SAY THIS RIDE 671 00:23:16,361 --> 00:23:17,896 ALONG WITH TOTALLY AWESOME. 672 00:23:17,896 --> 00:23:21,500 WARREN, THANK YOU SO MUCH. 673 00:23:21,500 --> 00:23:22,801 KURT, SHOULD WE TAKE MORE 674 00:23:22,801 --> 00:23:23,802 QUESTIONS? 675 00:23:23,802 --> 00:23:24,202 >> SURE. 676 00:23:24,202 --> 00:23:26,138 >> LET'S START WITH A VIDEO 677 00:23:26,138 --> 00:23:26,538 QUESTION. 678 00:23:26,538 --> 00:23:29,141 >> I'M ADAM, MY QUESTION IS WHY 679 00:23:29,141 --> 00:23:31,543 DON'T A ANY OF THE OTHER CARS 680 00:23:31,543 --> 00:23:32,878 HAVE ANY DOORS. 681 00:23:32,878 --> 00:23:33,812 >> GREAT QUESTION, ADAM. 682 00:23:33,812 --> 00:23:35,247 THE CARS DON'T HAVE DOORS. 683 00:23:35,247 --> 00:23:38,150 THEY STARTED HAVING DOORS BUT 684 00:23:38,150 --> 00:23:41,553 NASCAR MADE THE GUYS WELD THOSE 685 00:23:41,553 --> 00:23:43,622 UP AND SUBSEQUENTLY WE MOVED 686 00:23:43,622 --> 00:23:47,092 AWAY FROM DOORS AS A SAFETY 687 00:23:47,092 --> 00:23:47,392 ITEM. 688 00:23:47,392 --> 00:23:50,962 THE CARS TEND TO WRECK A LOT AND 689 00:23:50,962 --> 00:23:52,664 A LOT TIMES THE DOORS WOULD FLY 690 00:23:52,664 --> 00:23:55,200 OPEN AND PRESENT A SAFE ISSUE SO 691 00:23:55,200 --> 00:23:57,068 NASCAR IS MANDATED TO THE RACE 692 00:23:57,068 --> 00:23:58,570 TEAMS THERE WILL NOT BE DOORS ON 693 00:23:58,570 --> 00:23:59,971 THE RACE CARS. 694 00:23:59,971 --> 00:24:01,740 YOU MIGHT WONDER HOW WE GET IN 695 00:24:01,740 --> 00:24:03,708 AND OUT, JUST CLIMB THROUGH THE 696 00:24:03,708 --> 00:24:04,042 WINDOW. 697 00:24:04,042 --> 00:24:05,310 >> Beth: WE HAVE AN ONLINE 698 00:24:05,310 --> 00:24:06,211 QUESTION. 699 00:24:06,211 --> 00:24:08,013 >> IS CARBON FIBER USED IN 700 00:24:08,013 --> 00:24:08,346 NASCAR? 701 00:24:08,346 --> 00:24:11,917 >> YES ACTUALLY. 702 00:24:11,917 --> 00:24:13,652 CARBON FIRE IS USED A LOT. 703 00:24:13,652 --> 00:24:15,520 THE CARBON SEATS THAT DRIVERS 704 00:24:15,520 --> 00:24:16,588 SIT IN OR CARBON. 705 00:24:16,588 --> 00:24:18,356 THERE ARE A LOT OF LITTLE THINGS 706 00:24:18,356 --> 00:24:20,358 AROUND THE RACE CAR MADE OF 707 00:24:20,358 --> 00:24:20,692 CARBON. 708 00:24:20,692 --> 00:24:23,395 IN TODAY'S WORLD, THE HOODS AND 709 00:24:23,395 --> 00:24:25,530 THE DECK LIDS OR TRUNK LIDS ARE 710 00:24:25,530 --> 00:24:27,098 MADE OF CARBON. 711 00:24:27,098 --> 00:24:29,034 CARBON IS FINDING ITS WAY INTO 712 00:24:29,034 --> 00:24:29,734 THE SPORT. 713 00:24:29,734 --> 00:24:30,869 NASCAR HAS KEPT IT OUT OF THE 714 00:24:30,869 --> 00:24:32,504 SPORT FOR A LONG TIME BECAUSE 715 00:24:32,504 --> 00:24:34,639 CARBON IS VERY EXPENSIVE BUT 716 00:24:34,639 --> 00:24:36,208 THEY'RE FINDING OUT THE WEIGHT 717 00:24:36,208 --> 00:24:38,310 SAVINGS OFFSETS THE MONETARY 718 00:24:38,310 --> 00:24:39,177 INCREASE. 719 00:24:39,177 --> 00:24:39,911 >> Beth: OKAY. 720 00:24:39,911 --> 00:24:44,816 WHO HAS MY NEXT AUDIENCE 721 00:24:44,816 --> 00:24:45,183 QUESTION? 722 00:24:45,183 --> 00:24:49,988 >> WOULD USING A LIGHTER CAR 723 00:24:49,988 --> 00:24:53,625 MAKE THE CASH GO FASTER BUT 724 00:24:53,625 --> 00:24:54,025 FLIP? 725 00:24:54,025 --> 00:24:55,327 >> GREAT QUESTION. 726 00:24:55,327 --> 00:24:57,696 CARBON FIBERS ARE -- IS A MUCH 727 00:24:57,696 --> 00:24:58,496 LIGHTER MATERIAL. 728 00:24:58,496 --> 00:25:01,466 WE DO USE THEM, ONE, TO MAKE THE 729 00:25:01,466 --> 00:25:03,535 CAR LIGHTER SO IT GOES FASTER. 730 00:25:03,535 --> 00:25:05,070 THEN YOU ASKED WOULD IT HELP IF 731 00:25:05,070 --> 00:25:05,637 IT FLIPS. 732 00:25:05,637 --> 00:25:08,373 A CAR THAT FLIPS IS A FUNCTION 733 00:25:08,373 --> 00:25:10,175 OF HOW IT SPINS AND HOW THE AIR 734 00:25:10,175 --> 00:25:13,712 GOES OVER THE CAR WHEN IT SPINS. 735 00:25:13,712 --> 00:25:15,614 CARBON WON'T NECESSARILY CHANGE 736 00:25:15,614 --> 00:25:15,914 THAT. 737 00:25:15,914 --> 00:25:17,482 WHAT YOU CAN DO IS YOU CAN MAKE 738 00:25:17,482 --> 00:25:20,886 SOME OF THE PARTS OF THE CARING 739 00:25:20,886 --> 00:25:21,453 CARBON. 740 00:25:21,453 --> 00:25:23,021 EXCHANGE ALUMINUM FOR CARBON AND 741 00:25:23,021 --> 00:25:24,522 SOME PARTS CAN BE USED TO STOP 742 00:25:24,522 --> 00:25:25,523 THE CAR FROM FLIPPING. 743 00:25:25,523 --> 00:25:27,425 IF YOU LOOK AT THESE CARS OVER 744 00:25:27,425 --> 00:25:29,461 HERE, YOU'LL SEE ALONG THE TOP, 745 00:25:29,461 --> 00:25:31,229 THERE ARE ROOF RAILS AND THOSE 746 00:25:31,229 --> 00:25:33,131 HELP THE CAR THAT IS SPINNING 747 00:25:33,131 --> 00:25:34,966 FROM FLIPPING. 748 00:25:34,966 --> 00:25:36,968 >> Beth: THIS POPS OFF. 749 00:25:36,968 --> 00:25:38,603 >> THERE ARE ROOF FLAPS THAT POP 750 00:25:38,603 --> 00:25:38,970 UP. 751 00:25:38,970 --> 00:25:40,972 THE RAILS ARE STATIONARY BUT THE 752 00:25:40,972 --> 00:25:42,207 FLAPS POP UP. 753 00:25:42,207 --> 00:25:43,575 THAT'S A MAJOR CONTRIBUTOR TO 754 00:25:43,575 --> 00:25:46,544 KEEPING CARS ON THE GROUND. 755 00:25:46,544 --> 00:25:47,212 >> Beth: GOOD QUESTION. 756 00:25:47,212 --> 00:25:48,713 LET'S TAKE ANOTHER VIDEO 757 00:25:48,713 --> 00:25:49,915 QUESTION. 758 00:25:49,915 --> 00:25:53,618 >> HI, I'M ADEN AND I WAS 759 00:25:53,618 --> 00:25:55,987 WONDERING ARE THEY LIMITED ON 760 00:25:55,987 --> 00:25:56,922 PIT STOPS? 761 00:25:56,922 --> 00:25:58,390 >> WE'RE NOT LIMITED ON HOW MANY 762 00:25:58,390 --> 00:26:01,526 TIMES WE COME IN FOR A PIT STOP 763 00:26:01,526 --> 00:26:02,661 BUT WE'RE LIMITED ON HOW MANY 764 00:26:02,661 --> 00:26:04,663 GUYS WE SEND OVER THE WALL, 765 00:26:04,663 --> 00:26:05,697 SEVEN GUYS. 766 00:26:05,697 --> 00:26:06,898 WE'RE ALSO LIMITED ON WHAT WE 767 00:26:06,898 --> 00:26:08,533 CAN DO ON A PIT STOP. 768 00:26:08,533 --> 00:26:10,535 LAST YEAR IN THE YEARS PAST WE 769 00:26:10,535 --> 00:26:13,071 COULD DO ALMOST ANYTHING. 770 00:26:13,071 --> 00:26:15,507 NOT CHANGE A MOTOR BUT REPLACE 771 00:26:15,507 --> 00:26:16,675 PARTS DAMAGED ON THE CAR. 772 00:26:16,675 --> 00:26:19,044 THIS YEAR NASCAR HAS NEW RULES 773 00:26:19,044 --> 00:26:20,412 THAT SAY WE DON'T WANT YOU 774 00:26:20,412 --> 00:26:22,180 FIXING YOUR CAR ON PIT ROW 775 00:26:22,180 --> 00:26:23,748 BECAUSE IT POSES A DANGER TO THE 776 00:26:23,748 --> 00:26:25,083 GUYS OUT THERE WORKING. 777 00:26:25,083 --> 00:26:26,985 SO WE CAN NO LONGER TAKE PARTS 778 00:26:26,985 --> 00:26:30,422 OVER THE WALL AND PUT NEW PARTS 779 00:26:30,422 --> 00:26:30,689 ON. 780 00:26:30,689 --> 00:26:32,424 WE CAN USE WHAT PARTS ARE LEFT 781 00:26:32,424 --> 00:26:34,759 AND REATTACH THEM BUT WE CAN'T 782 00:26:34,759 --> 00:26:35,527 ADD PARTS. 783 00:26:35,527 --> 00:26:37,329 THE ANSWER IS THERE'S A LOT OF 784 00:26:37,329 --> 00:26:38,830 LIMITATIONS ON WHAT YOU CAN DO 785 00:26:38,830 --> 00:26:40,265 ON PIT ROAD. 786 00:26:40,265 --> 00:26:43,234 >> Beth: DUCT TAPE IS A FRIEND. 787 00:26:43,234 --> 00:26:44,636 >> WE USE A LOT. 788 00:26:44,636 --> 00:26:45,637 >> KURT, THANK YOU FOR BEING 789 00:26:45,637 --> 00:26:46,004 WITH US. 790 00:26:46,004 --> 00:26:48,974 I WOULD LIKE TO THANK THE NASCAR 791 00:26:48,974 --> 00:26:53,244 HALL OF FAME, CRVA, OUR SPONSOR, 792 00:26:53,244 --> 00:26:56,348 THE GERTRUDE E SKELLY 793 00:26:56,348 --> 00:26:56,948 FOUNDATION. 794 00:26:56,948 --> 00:26:58,783 NEXT WEEK WE'LL LOOK AT WOMEN 795 00:26:58,783 --> 00:27:00,452 PAVING THE WAY TO MARS. 796 00:27:00,452 --> 00:27:02,520 >> CHECK THIS OUT! 797 00:27:02,520 --> 00:27:06,458 THIS IS SALLY RIDE'S P38 HELMET. 798 00:27:06,458 --> 00:27:08,059 AMERICA'S FIRST WOMAN IN SPACE. 799 00:27:08,059 --> 00:27:10,595 SHE USED TO WEAR THIS WHEN SHE 800 00:27:10,595 --> 00:27:15,433 FLEW ON THE NASA T38 JET. 801 00:27:15,433 --> 00:27:17,168 >> Beth: ONE THING ABOUT SALLY'S 802 00:27:17,168 --> 00:27:18,737 HELMET IS THE COLOR. 803 00:27:18,737 --> 00:27:22,540 SHE PICKED IT TO MATCH HER 804 00:27:22,540 --> 00:27:24,542 PERSONALITY AND WANTED A NICER 805 00:27:24,542 --> 00:27:24,876 SCRIPT. 806 00:27:24,876 --> 00:27:27,245 IN JUNE 1983 SHE FLEW ON 807 00:27:27,245 --> 00:27:29,614 CHALLENGER BRIDGING THE GENDER 808 00:27:29,614 --> 00:27:30,115 GAP. 809 00:27:30,115 --> 00:27:31,649 THE ACCOMPLISHED WOMEN HAVE 810 00:27:31,649 --> 00:27:32,884 FLOWN IN SPACE SINCE AND MORE 811 00:27:32,884 --> 00:27:34,819 ARE PREPARING TO FOLLOW IN THE 812 00:27:34,819 --> 00:27:35,153 FUTURE. 813 00:27:35,153 --> 00:27:36,654 YOU THINK THIS IS INTERESTING? 814 00:27:36,654 --> 00:27:40,125 JOIN US FOR "STEM IN 30". 815 00:27:46,631 --> 00:27:47,465 >> Beth: TODAY AS WE CLOSE OUT 816 00:27:47,465 --> 00:27:48,533 WE WILL LEAVE YOU WITH MORE 817 00:27:48,533 --> 00:27:51,036 SIGHTS AND SOUNDS OF MY RIDE 818 00:27:51,036 --> 00:27:51,369 ALONG. 819 00:27:51,369 --> 00:27:52,637 >> Marty: STICK OUT AFTER THE 820 00:27:52,637 --> 00:27:54,105 CREDITS AS WE TALK TO KURT MORE 821 00:27:54,105 --> 00:27:56,041 AND TAKE A FEW MORE QUESTIONS.