Biofuel Cell
Researchers at Saint Louis University have developed a fuel cell that uses enzymes rather than metal to produce electricity, and can be recharged by adding a few mL of alcohol. Everywhere you devices that require long battery life could benefit from this - including laptops, cell phones, etc. Just think about it: that 16-oz. in your desk drawer could finally have a good excuse to explain it away - your laptop needs a drink! What's really interesting though, is what is a Jesuit college doing running experiments with alcohol ... ;-)
The first chef
First came fire ... and then, as the camera shifts to the soon to be late-village idiot, you're left wondering -- just what was going through that mind -- and food is put on the fire, for the first time, and cooking is accidentally discovered by humanity. The first chef is ridiculed by grunts, then the local thug tries a sample of the burnt carcass, and soon, everybody gets queued at the McDonalds drive-thru. What happened? Richard Wrangham of Harvard believes there's more to cooking than evolutionary history would have you believe. Wrangham points out that there is no way homo sapiens could survive on just raw food. Raw food just doesn't give up calories as easily as cooked food -- and raw food makes the digestive system expend more energy to get at those calories. Cooking on the other hand breaks complex molecules down, allowing the digestive system to make easy work of them -- and cooking also softens food, allowing the body to get to the calories with less effort...
Comments
Post a Comment