Frying to Mars
Between Mars and Earth is a lot of open space -- open that is, unless you're looking for a bit of radiation. If you're looking for raditation, there is no open space between Earth and Mars. NASA is working on figuring out what dangers the radiation that astronauts will be exposed to pose. Current estimates, put the chances of getting cancer due to the exposure is between 1-19% -- but the margins of error is apparently quite wide. Read more at this NASA site, and check out the useful links on the topic at the bottom of the page.
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...
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