16 APR 2018 by ideonexus

 Games are Patient and Know You

What this small group of tinkerers found is that games focus, inspire, and reassure young people i; in ways that school often can't. Then as now, they believed, if you are a young person, games give you a chance to learn at your own pace, take risks, and cultivate deeper understanding. While teachers, parents, and friends may encourage and support you, these natural resources are limited. Computers work on a completely different scale and timetable. They're "infinitely stupid and infinitely p...
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05 FEB 2016 by ideonexus

 The Stress of Cold Temperatures Extends Lifespans

In 1986, John Holloszy of Washington University immersed his lab rats in shallow, cool water for four hours each day. They burned so many extra calories that they ate half again as much as control rats, but weighed less. The cold rats lived 10% longer, on average. Holloszy framed his report on this experiment not as a hormetic effect of cold exposure, but as a refutation of the “rate of living” hypothesis. In 2006, Gordon Lithgow of the Buck Institute for Aging Research exposed lab worms...
Folksonomies: longevity
Folksonomies: longevity
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13 MAR 2014 by ideonexus

 Mathematics Should be Taught Like Art

Imagine you had to take an art class in which you were taught how to paint a fence or a wall, but you were never shown the paintings of the great masters, and you weren't even told that such paintings existed. Pretty soon you'd be asking, why study art? That's absurd, of course, but it's surprisingly close to the way we teach children mathematics. In elementary and middle school and even into high school, we hide math's great masterpieces from students' view. The arithmetic, algebraic equati...
Folksonomies: education mathematics
Folksonomies: education mathematics
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Instead of introducing kids to the basics, introduce them to the great works.

01 JAN 2012 by ideonexus

 Sports on Phobos

Because of their small sizes, Phobos and Deimos have very low gravitational accelerations. Their gravities do not pull very hard. The pull on Phobos is only about one one-thousandth of that on Earth. If you can perform a standing high jump of two or three feet on Earth, you could perform a standing high jump of half a mile on Phobos. It would not take many such jumps to circumnavigate Phobos. They would be graceful, slow, arcing leaps, taking many minutes to reach the high point of the self-p...
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How the low gravity and tiny size of Mars' moon would affect the game.

29 JUN 2011 by ideonexus

 Cross-Species Milk

Our notions of mother's milk come from what we see, and for most of us the milk we see is cow's milk, a brilliant white liquid. But milk from other species looks quite different—kangaroo milk, for example, is pink. But whatever the hue, breast milk is species-specific; that is, the composition is finely tuned to the particular growth and maturational needs and digestive system of the young of each species.^ ^ For example, cow's milk is higher in volatile fatty acids than human milk, and hum...
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A comparison of the milk produced by females of various species, its nutritional content, and what that tells us about their lifestyle.