Kalyn Arias

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Farmers in Italy test methane-run tractor prototype that could eliminate need to buy fuel

Luca Remmert's dream of running a self-sustainable farm is within sight. He produces energy from corn and grain near the northern Italian city of Turin and hopes in the not too distant future to run all of his eight tractors on methane generated at the farm.<p>Remmert's 450-hectare (1,100-acre) La …

One Small Bite For Man: NASA Astronauts Eat Space-Grown Food

<b>Update at 5:20 p.m. ET: Space Lettuce Tastes 'Awesome'</b><p>Monday morning on the International Space Station, NASA astronauts Scott Kelly and Kjell Lindgren and astronaut Kimiya Yui of Japan sampled the "Outredgeous" red romaine lettuce, the first plant grown in space. The trio first sanitized the …

Space

A Teacher’s Guide For Creating A School Twitter Chat

<b>A Teacher’s Guide For Creating A Twitter Chat In Your School</b>by <b>Nellie Mitchell</b>A twitter chat is an amazing resource for professional development and …

Teaching

Turning cow poo into power is profitable for US farm

The family-run American farm invested in a biogas recovery system which transforms cow poo and other waste into electricity.<p>Enough electricity, in fact, to power 1,000 homes, a service which the local utility company pays for handsomely.<p>But that's just a side benefit.<p>"It works economically, but one …

Profit

Build A Miniature Plasma Cutter Using A Mechanical Pencil Lead (video)

Little Shop of Physics has built a miniature plasma cutter using a pencil lead together with 4 x 9 volt batteries and a couple of clips allowing you …

Chickens and Eggs: From Queen Victoria to Bird Flu

As you’ve probably heard, there’s an egg shortage. It was caused by the worst bird flu outbreak in U.S. history, which has killed nearly 50 million chickens and turkeys since December.<p>Fewer chickens has meant fewer, more expensive eggs, forcing restaurants, bakeries and consumers to cut back on …