KOMPAS.com – Being in space is really a very extraordinary experience for the astronauts. But it's not as simple as we think. The absence of gravity means that many of the habits we do on earth should not happen in space.
One of them is bending. Chris Hadfield, the head of the International Space Station (ISS) who asked questions about saltpeter from a Twitter user, explained that we apparently could not use the habits of space.
"You can not burp in space because air, food and fluid in the stomach float together like coarse bubbles. And guess where the captured air is going," Hadfield replied.
On the ground the air rises in the stomach and can be removed from the mouth because it is lighter than food and liquid.
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But it's another story if you're in space where there's no gravity. The gas that comes out of the mouth remains mixed with all other things in the stomach. It is a kind of mixture of bending and vomiting called "bornite".
"When a burps in space it is often" wet bending "which means that some fluid is also released," says Robert Frost, NASA engineer.
The same was expressed by Charles Bourland, a consultant for NASA's Food Technology Commercial Space Center, 2011.
"If you live in space it's usually wet because liquids and gases are not as separate as those on earth," he explained.
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Fortunately, an astronaut, named Jim Newman, managed to find a way to belch without bornite in space.
In the book "What's in Space?" written by Ariel WaldmanNewman called his technique as "push and burp" aka push and belch.
"By pushing the wall, it creates power instead of gravity that keeps food in the stomach. (This) gives a short chance of releasing gas without consequences (bornite), "Said Waldman.