convenient

Seoul food: Tourist stumbles across grocery store inside Korean subway car

Seoul food: Tourist stumbles across grocery store inside Korean subway car

Whatever the country, when taking a ride on the subway the feeling that you have entered into a whole new dimension, completely cut off from the world above, can be difficult to suppress. But in the Korea’s capital city, the division between underground and overground became a little blurred than usual for one tourist as they discovered a fully stocked grocery store in a subway car.

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Dirty to Clean with Just a Few Cranks: Safe Drinking Water for All

Dirty to Clean with Just a Few Cranks: Safe Drinking Water for All


Reminiscent of a hand-cranked bingo number generator, Poly Glu International of Osaka has developed an easy-to-use portable water purification system, Eco-Polyglu, intended for those cut off from access to clean potable water.

The mechanics of the system are simple: pour dirty water in need of cleaning into the 10-liter capacity tank, add a packet of polyglutamic acid, insert a filter, and use the hand crank to spin the tank for about one minute. Voila! You now have water that is safe to drink. Change the filter and you’re ready to go again. The system’s water tank can also be easily detached and carried like a bucket.

Full video of this fantastic little contraption turning filthy liquid into crystal-clear water after the break.

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