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Use of LifeStraw. The original LifeStraw is a plastic tube 22 centimetres (8 + 5 ⁄ 8 in) long and 3 centimetres (1 + 1 ⁄ 8 in) in diameter. [8] Water that is drawn up through the straw first passes through hollow fibres that filter water particles down to 0.2 µm across, using only physical filtration methods and no chemicals.
In 2014, Lifestraw launched a Give Back program designed to provide one school child in a developing country safe drinking water for an entire school year. The program is funded by retail sales in North America or Europe. [15] [16] LifeStraw. A water filter designed to be used by one person to filter water for drinking. It was patented and ...
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In case you haven’t met this modern wonder, the LifeStraw Go Water Filter Bottle — on sale for $27 — enables you to make just about any type of water drinkable. The straw inside of the 22 ...
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The straw contains a microfiltration membrane that removes 99.999999% of waterborne bacteria, and 99.999% of waterborne parasites. The filter also removes the smallest microplastics found in the ...
By 1970, a calculator could be made using just a few chips of low power consumption, allowing portable models powered from rechargeable batteries. The first handheld calculator was a 1967 prototype called Cal Tech, whose development was led by Jack Kilby at Texas Instruments in a research project to produce a portable calculator. It could add ...
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