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19882
This article brought to mind the history of pitch through the centuries. In the 17th century, what is now G sharp was an A. Maybe the “perfect” pitch is somewhere else. Stanton AlgerBainbridge Island, Wash. Before the 20th century, the tone that musicians called A ranged widely but was generally between 415 and 432 hertz […]
- Astronomy
Major merger
Four galaxies are ramming into each other in one of the biggest cosmic collisions ever recorded.
- Health & Medicine
How platelets help cancer spread
A tumor cell protein influences blood platelets in a way that helps a cancer spread through the body.
- Health & Medicine
Curry Power
A component of the spice turmeric, the color-giving ingredient in yellow curries, may help prevent and possibly treat Alzheimer's disease.
