Uncategorized
- Animals
Singing frog in China evokes whales, primates
A frog in China warbles and flutes with such versatility that its high-pitched calls sound like those of birds or whales.
- Astronomy
Getting a Clear View
Outfitted with a mirror that flexes several hundred times a second to compensate for the blurring induced by Earth’s atmosphere, one of the world’s sharpest telescopes just got a whole lot sharper.
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19114
In this article, you state, “The first Fermat number is 22+1, or 5,” and later, “the first four Fermat numbers are prime, but [among] the rest, up to and now including the 24th, none are prime.”
