In their quest to save our dying planet, ecologically concerned people are often forced to make sacrifices. If you're compelled to join them, you can start by getting rid of that fancy superstore toothbrush and replace it with the Source Toothbrush, an environmentally friendly hygienic tool constructed from wood fiber and a special plastic made from Nebraska corn. Its replaceable heads also feature the world's first "radial bristling" for maximum plaque-busting power. Nobody says you have to have bad breath to be a tree hugging hippie. $7.95 [Source Toothbrush via UberReview]
Biodegradable Source Toothbrush Saves The World One Head At A Time
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Researchers Made 25-Ton Boulders They Can Move By Hand, Giving More Insights Into Ancient Engineering
How were giant ancient structures like Stonehenge, or the towering Moai heads on Easter Island, assembled at a time when cranes and trucks were still hundreds of years away? Researchers at MIT have given more credence to theories that ancient engineers were masters of balance and leverage with a new experiment that produced giant concrete structures, some 25-tons in weight, that can be still be manoeuvred by hand.