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Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

Thursday, August 06, 2009

Bruno Kammerl and the world's scariest waterslide

Wet 'n Wild Emerald Pointe ain't got nothin' on Bruno Kammerl and what has to be the biggest waterslide in the history of anything...

Props to Matt Mittan for finding this!

Friday, May 22, 2009

Perhaps we should call it the "International Still Suit"?

Thanks to a newly-tested and approved recycling system aboard the International Space Station, its long-term crews are now able to drink water recovered from urine, sweat and breath exhalation. It's the first time that water has been acquired and imbibed in space in such a manner.
The new system takes the combined urine of the crew from the toilet, moves it to a big tank, where the water is boiled off, and the vapor collected. The rest of contaminants - the yucky brine in the urine - is thrown away, said Marybeth Edeen, the space station's national lab manager who was in charge of the system.

The water vapor is mixed with water from air condensation, then it goes through filters, much like those put on home taps, Edeen said.

When six crew members are aboard it can make about six gallons from urine in about six hours, Edeen said.

The system sounds very much like the stillsuits worn by the Fremen in the Dune series of novels.

Wonder how long it'll be before some bold entrepreneur approaches NASA about selling drops of "authentic recycled astronaut urine" :-P

Tuesday, August 05, 2008

Scientists find the hottest water on Earth

Just south of the equator and nearly two miles below the surface of the Atlantic Ocean, researchers have discovered the hottest liquid water ever found on Earth, in a state that has never before been observed in the natural world. Hydrothermal vents are discharging water in a "supercritical" state (I'm thinking it's analogous to plasma as a super-heated gas) that has been recorded to get as hot as 464 degrees Celsius. For us American folks, that's a whopping 867 degrees Fahrenheit for liquid water! The conditions are so adverse surrounding the vents that computer modeling is the only way to study them, since regular equipment would melt from the heat.

Interesting stuff. Great fodder for discussion for any science and physics teachers out there who want to get their students thinking about how things like temperature and pressure affect water's properties.