Machine That Turns Sweat Into Drinking Water

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Sep 142013
 

A group of Swedes have created a machine that turns sweat into drinking water.

Out with the old, in with the new!

To highlight the seriousness of potable water shortage in some parts of Africa and Asia a group of tech-savvy Swedes have created a machine that turns perspiration into drinking water. Aptly named the “Sweat Machine” was inspired by technology used by NASA to recycle everything from human sweat to urine.

Developed by a team of engineers led by Andreas Hammar, the Sweat Machine works by extracting the perspiration, which is 99% water, out of people’s clothes. Sweaty garments are tossed into a dryer, where they are spun and squeezed for every last drop of liquid. The gathered sweat then gets heated, exposed to ultra-violet light and passed through a series of high-tech filters to remove the salt and bacteria. During the final stage of the purification process, the sweat goes through a coffee filter that retains any textile fibers left over from the clothes. The result is perfectly drinkable distilled water. Although the exact capacity of the dryer is yet unknown, the inventors say it takes a full load of sweaty shirts and shorts to produce a pint of potable water. Drinking your own and other people’s sweat sounds disgusting, but according to one brave sommelier, it actually has nice sweet taste.

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Sep 062013
 

The placebo effect is a long-recognised phenomenon that has played an important part in the history of medicine — from the healing powers of Stonehenge to administering placebo drugs to modern day patients. But it’s not until recently that science has begun to truly understand how the placebo effect really works.

Professor Nicholas Humphrey asks why placebos work and reveals their central paradox: If we can effectively cure ourselves by taking placebo medicine, why don’t we just heal ourselves straight away?

Exploring this paradox from the perspective of evolution, Professor Humphry looks at the associated costs and benefits of pain or illness. How can placebo medications readdress this balance and is a “dose of contrived optimism” just what the doctor ordered?

 

Expo

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Sep 032013
 

A good short science fiction film by Joe Sill.

Female astro-miner Shona has been mining under dangerous conditions on the moon for the past two years in order to pay for expensive medical treatments in hopes of save her bed-ridden daughter Darla, and now that her tour is completed, a younger astronaut Paige has come to replace her. Shona is reluctant to return to the world she once knew, but in meeting Paige realizes that returning to Earth isn’t where she’ll find peace – she will have to return home.