Saul Griffith’s TED Talk on Wind Power
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If early humans had been vegans we might all still be living in caves, Swedish researchers suggested in an article recently published in the journal PLoS ONE. When a mother eats meat, her breast-fed child’s brain grows faster and she is able to wean the child at an earlier age, allowing her to have more…
Support. Collaborate. Retain: Strategies for Improving the STEM Teaching Crisis
Current efforts to improve STEM education are limited by schools’ ability to retain good teachers.
Genetic Data, Fossil Evidence Tell Differing Tales of Human Origins
After decades of digging, paleoanthropologists looking for fossilized human bones have established a reasonably clear picture: Modern humans arose in Africa some 200,000 years ago and all archaic species of humans then disappeared, surviving only outside Africa, as did the Neanderthals in Europe. Geneticists studying DNA now say that, to the contrary, a previously unknown…
Starbucks of Ancient America?
In the 1600s, Europeans exploring the American southeast wrote of a purification ritual practiced by the native people, involving dancing, vomiting, and large amounts of what the travelers called black drink. Served from shell cups, the highly caffeinated tea was brewed from the shrub Ilex vomitoria, a species of holly. In a new study, researchers…
‘Social Jet Lag’ Can Figure Into Obesity
As many working people and students can attest, the sound of the alarm clock in the morning can mean an unpleasant jolt out of a nice deep sleep. And disrupting the body’s internal clock in this way can lead to a higher risk of becoming overweight or obese, according to a new European study published…
New Kind of Magnetism Discovered
Following up on earlier theoretical predictions, MIT researchers have now demonstrated experimentally the existence of a fundamentally new kind of magnetic behavior, adding to the two previously known states of magnetism. Ferromagnetism – the simple magnetism of a bar magnet or compass needle – has been known for centuries. In a second type of magnetism,…