User Input

User Input: Stupid Gravity

Cmdr Hadfield and his water bottle

We usually try not to just recycle material that’s already made the rounds of the entire internet, but we have to make an exception in this case, because this is just way too cool to ignore. Commander Hadfield, way up there on the International Space Station, decided to try a simple experiment to see what happens if you wring out a wash cloth in space. Hit the jump for the video, if you haven’t already seen it.

Why don’t we have his job?


What simple trick would you like to try in zero-G?

  • See how far a really good fart will propel you. Lighting it is optional.

  • SSurfer321


    Who cares, that was awesome!

  • Number_Six

    Amazing. But why do people in space look like they're upside down and their faces are gonna explode?

    • Dean Bigglesworth

      How do you know they aren't?

      • Number_Six


      • ˏ♂ˊ mzs zsm msz esq

        Ha, but #6, it's because of without earth's gravity less blood stays in the lower parts of the body like the legs and so more of the blood goes to the head and yo can see it near the surface like on the forehead.

    • lcunnin

      In zero gravity your blood tends to pool in your trunk and head. So yes everyone looks like they have a massive cold or are in heart failure. But they are not.

    • KoshNaranek

      One of the Shuttle(STS-121, I think, I have the reference on my home computer) missions had an astronaut go with a Swan-Gantz catheter in place. It measured Central venous pressure and Pulmonary Diastolic pressure. In microgravity, fluid normally present in our legs moves to the central and upper circulation. This gives the puffy look to the face. Over several days, the total body water decreases but upper body central venous pressure and therefore Starling interstitial pressure(pressure of water between cells) remains higher than normal. Several weeks after that, total hemoglobin begins to drop. Hemoglobin concentration, however actually returns to normal, since it rose when total body water dropped(this has nothing to do with the puffy face, but is interesting nonetheless).

  • Lately I've been a fan of Don Pettit's "Science Off The Sphere" series of experiments. Except the digeridoo one. This one's about blowing bubbles inside drops of water.

    [youtube U9VFwGYRZQg youtube]

  • Wolfie

    I would like to have intercourse in space.

    • Number_Six
      • Wolfie

        Your reference is too vague for my feeble mind.

        • Darryl

          The BBC series Sherlock S02E01, A Scandal in Belgravia. If you haven't pirated it found it through totally legitimate means (read: pirated it), go do so. The series is amazing. In fact I may have to watch it this weekend.

        • jeepjeff

          It's Bilbo and Sauron having a giggle after tea.

        • CaptianNemo2001

          Elementary Mr. Holmes… It happens to be Sherlock on the BBC.