1 00:00:05,329 --> 00:00:03,050 this is me heating up a quarter-inch 2 00:00:07,639 --> 00:00:05,339 piece of rebar on top of the rebar 3 00:00:09,650 --> 00:00:07,649 there's balanced a couple of cinder 4 00:00:13,820 --> 00:00:09,660 blocks or wrist blocks as we call them 5 00:00:16,609 --> 00:00:13,830 in the UK and they weigh about maybe 10 6 00:00:20,359 --> 00:00:16,619 15 pounds each 2030 pounds on top of 7 00:00:23,660 --> 00:00:20,369 this piece of rebar it took me it takes 8 00:00:25,670 --> 00:00:23,670 about three minutes I think for it to a 9 00:00:27,529 --> 00:00:25,680 start to buckle I measured the 10 00:00:30,830 --> 00:00:27,539 temperature that I can get with this 11 00:00:33,020 --> 00:00:30,840 torch and by directly heating a 12 00:00:35,360 --> 00:00:33,030 thermocouple which is the hot as you 13 00:00:37,670 --> 00:00:35,370 could possibly get it gets to about 700 14 00:00:40,700 --> 00:00:37,680 and something seven thirty seven forty 15 00:00:43,010 --> 00:00:40,710 the very hottest and actually heating a 16 00:00:45,830 --> 00:00:43,020 piece of thick steel relatively thick 17 00:00:47,569 --> 00:00:45,840 steel like this it doesn't really get 18 00:00:51,290 --> 00:00:47,579 over six hundred and fifty degrees C 19 00:00:56,060 --> 00:00:51,300 which is about 1,200 degrees Fahrenheit 20 00:00:58,910 --> 00:00:56,070 I focus the the torch mostly in one spot 21 00:01:01,310 --> 00:00:58,920 wave it around a little bit try to get a 22 00:01:05,030 --> 00:01:01,320 bit more of an area of weakness and at 23 00:01:07,550 --> 00:01:05,040 one point I I poked the hey I'm here I'm 24 00:01:10,010 --> 00:01:07,560 poking it with with the torch just to 25 00:01:12,289 --> 00:01:10,020 see if it's moving and it's still still 26 00:01:13,850 --> 00:01:12,299 still pretty solid doesn't it with long 27 00:01:17,840 --> 00:01:13,860 after that but you can actually start to 28 00:01:20,749 --> 00:01:17,850 see it moving now and if you look at the 29 00:01:23,899 --> 00:01:20,759 top you will see the block start to move 30 00:01:24,859 --> 00:01:23,909 over to the left which is can have a 31 00:01:27,260 --> 00:01:24,869 problem because the blocks not 32 00:01:29,210 --> 00:01:27,270 constrained there it goes so it took 33 00:01:30,890 --> 00:01:29,220 about two and a half minutes bit less