Cool Morning Mug

Designer Damion O’Sullivan really understands those of us who need time to wake up in the mornings. When cold, his morning mug displays a sleeping face white on black. As you pour in the hot coffee (or tea), the mug awakens to greet you.

Arctic Sea Ice Hits Record Low—Extreme Weather to Come?


Global warming to blame for highest observed decline, scientists say.

Arctic sea ice is thawing at a historic rate, scientists say. In fact, a recent analysis of satellite data “utterly obliterates” the previous record, set in 2007.

The chief culprit? Global warming. The potential upshot? Longer and more intense extreme-weather events such as heat waves, cold spells, and droughts. (Read more about extreme weather in National Geographic magazine.)

On Monday, researchers at the U.S. National Snow and Ice Data Center said the rate of Arctic sea ice decline is now the highest that has ever been observed for the month of August. In August of this year, the sea ice disappeared at an average rate of about 39 square miles (a hundred square kilometers) per day—or about twice as fast as normal, NSIDC scientists say.

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How many megapixels does the human eye have???

You see things one way, and your camera sees things differently.
So, what is the resolution of the human eye, at which a camera would be able to truly capture an image the way the eye sees it?

The answer is 576MP, the technical breakdown is as follows:

Consider a view in front of you that is 90 degrees by 90 degrees, like looking through an open window at a scene. The number of pixels would be 90 degrees * 60 arc-minutes/degree * 1/0.3 * 90 * 60 * 1/0.3 = 324,000,000 pixels (324 megapixels).

At any one moment, you actually do not perceive that many pixels, but your eye moves around the scene to see all the detail you want. But the human eye really sees a larger field of view, close to 180 degrees. Let’s be conservative and use 120 degrees for the field of view.

Then we would see 120 * 120 * 60 * 60 / (0.3 * 0.3) = 576 megapixels.

The full angle of human vision would require even more megapixels. This kind of image detail requires A large format camera to record.

Therefore, once our cameras reach 576MP, the pictures you take with your camera will look exactly the same as you see them.