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19046
This article illustrates the importance of astronomical instruments by suggesting that Copernicus was not “proved right” until the development by Tycho Brahe of sophisticated observational tools late in the 16th century. I think this is a misleading example. Tycho’s records did allow his one-time assistant Johannes Kepler to move closer to “proving” Copernicus right, early […]
- Astronomy
Journey through the Universe
A new permanent exhibit at the Smithsonian Institution's National Air and Space Museum traces the development of tools used to study the heavens and how they have changed our understanding of the universe.
- Health & Medicine
Weak appetite in elderly ties to hormone
A hormone known to suppress appetite is more abundant in seniors than in young adults and has a greater effect in squelching hunger in elderly people.
