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okay well what I have here is a little

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cup I made from an overhead transparency

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film that I found and I'm going to roll

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the video now and I've also got a bag of

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coffee and we can fund our coffee out

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from a bag but no drinking from a cup is

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hard to do because you can't get the cup

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up and get the liquid out and it's also

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easy to slosh so with the special shape

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of this cup the surface tension forces

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will wick the coffee up along the edge

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there and as you can see as I'm putting

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some coffee there in the bay and the way

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this works is one is the cross section

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of this couple looks like an airplane

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wing and the sharp angle the narrow

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angle there will whip the coffee up and

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this is what we use when we design fuel

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tanks for rockets to reignite in a

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weightless environment the veins and the

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tanks will with the fluid into the

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suction port and if that angle is less

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than 2 x 90 minus a contact wedding

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angles in the liquid will rise like that

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so knowing this for a fuel tank you can

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make it into a cup drink your fluid from

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so you could just sit there right on the

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edge of the cop and as you sip more

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fluid just keeps coming up and up and up

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and you can enjoy a cup of coffee in a

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weightless environment without having a

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separate from a bag and you could just

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keep dipping and sipping sipping clear

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down to the last drop in the cup of

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course I did and this may very well be

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what future space colonist end up using

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when they want to have a celebration and

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do a toast they can sit there coffee and

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their tea from cups like this like we do

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down here on earth without having to

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suck them from a bag I don't want to

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take any ceramic up here or glass so I

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don we really enjoyed that that's a lot

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of fun the angle

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and these advanced and you can see I'm

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continuing to suck the coffee out or

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actually sip the coffee because we're no

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longer sucking out of a bag now we are

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we're drinking from a cup and know what

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the coffee continues to climb up an

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acute angle and until the whole bag is

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drained good to the last drop now grab

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red that's the end of the video I wanted

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to share that with you a little

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discovery we made by using a little