Hubble's Ultra Deep Field
Hubble has taken its furthest view into the universe yet, and has released the Hubble Ultra Deep Field image. The image, taken in the course of 400 orbits around the Earth, is of a patch of the sky equivalent to a pin head being viewed from arm's length. The image contains about 10,000 galaxies -- basically, every point of light you see in the images is a galaxy. To complete a full sky survey at this depth, would require Hubble to constantly be observing for the next 1 million years. Check out this cool flash animation that helps you navigate the Hubble image, or here for a smaller HUDF image.
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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