5,012 results
- Math
Prime conjecture verified to new heights
Computations show that all even integers up to 4 x 1014 can be written as the sum of two prime numbers, lending support to the Goldbach conjecture.
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Probing Ocean Depths: Photosynthetic bacteria bare their DNA
Scientists have deciphered the DNA of two highly abundant, photosynthetic ocean bacteria.
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19155
I think it’s more than coincidental that the sound repertoire of babbling babies, compared with the speech sounds in a diversity of languages across the world, lends credence to the idea that there was a mother tongue that goes back to prehistoric times. Readers of the Bible will recall that it was after the fall […]
- Earth
Newfound gas is greenhouse powerhouse
Scientists have detected in the atmosphere for the first time a gas that traps heat more effectively than any other previously found there.
- Math
Measuring with Jugs
Given a 5-liter jug, a 3-liter jug, and an unlimited supply of water, how do you measure out exactly 4 liters? In her book In Code: A Mathematical Journey, Sarah Flannery gives this classic brainteaser as an example of the sorts of playful puzzles that her father, a mathematics lecturer at the Cork Institute of […]
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By a Nose? Human sperm may sniff out the path to an egg
A man's sperm appear to possess a primitive kind of nose that enables them to navigate to a woman's egg by scent.
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19082
I thought this article was quite interesting, but I would derive a different conclusion than did the scientists featured. I would not presume that Easterners have less capacity to make logical inferences than Westerners, but that they give logical inferences less import. The primary religions in the East–Confucianism, Taoism, and Buddhism–stress the importance of harmony […]
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The Brain’s Funny Bone: Seinfeld, The Simpsons spark same nerve circuits
Brain scans of people watching sitcoms show that different brain regions spark with activity when a person initially gets a joke versus when he or she subsequently responds to its humor.
- Animals
Hawkmoths can still see colors at night
For the first time, scientists have found detailed evidence than an animal—a hawkmoth—can see color by starlight.
- Humans
From the February 18, 1933, issue
OUTWITTING VAMPIRES AND VIPERS When a vampire is a supernatural creature, science laughs at it. But when it is a disease-bearing bat, science sets its disease-fighters to work seeking a way to conquer it. Down in Panama, the disease-fighters of the Gorgas Memorial Institute, in addition to carrying on their regular job of fighting malaria, […]
- Health & Medicine
Mixed Results: AIDS vaccine falters in whites, may help blacks
In its first large test, an AIDS vaccine has failed to shield an at-risk population from acquiring AIDS.
- Humans
From the July 12, 1930, issue
FISH’S-EYE VIEW A poet once wished for the gift to see ourselves as others see us. An artist has achieved it. Wilfrid Swancourt Bronson, of New York, has cultivated the ability to see things from the fish’s point of view, taking into account the squeezed perspective one gets through the little “window” in the water […]
