Uncategorized
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19198
This article reports that 223 out of 243 aircraft in the study produced contrails and that the researchers produced a model that predicts contrails correctly 92 percent of the time (but doesn’t predict their duration). Based on the article, I propose the simplest possible model: Always predict a contrail. You’ll be right 223/243 (92 percent) […]
- Earth
Warm arctic summer melted much ice
Satellite observations of the Arctic Ocean show that the amount of sea ice there this year was the lowest it's been in more than 20 years.
- Earth
Warm arctic summer melted much ice
Satellite observations of the Arctic Ocean show that the amount of sea ice there this year was the lowest it's been in more than 20 years.
- Planetary Science
Fresh crater found on lunar images
Scientists analyzing images of the moon's surface taken from lunar orbit believe they've identified the crater that formed when a small asteroid slammed into the moon almost 5 decades ago.
- Planetary Science
Fresh crater found on lunar images
Scientists analyzing images of the moon's surface taken from lunar orbit believe they've identified the crater that formed when a small asteroid slammed into the moon almost 5 decades ago.
- Anthropology
Ethiopians reveal high-altitude twist
To the surprise of researchers, blood measures of oxygen-rich hemoglobin in Ethiopian villagers living more than 2 miles above sea level are the same as those of lowland dwellers.
- Anthropology
Ethiopians reveal high-altitude twist
To the surprise of researchers, blood measures of oxygen-rich hemoglobin in Ethiopian villagers living more than 2 miles above sea level are the same as those of lowland dwellers.
- Physics
Prying apart antimatter
Matter and antimatter look reassuringly alike in physicists' first investigations of energy levels of antihydrogen atoms.
- Physics
Prying apart antimatter
Matter and antimatter look reassuringly alike in physicists' first investigations of energy levels of antihydrogen atoms.
- Health & Medicine
Herpes vaccine progresses
A new vaccine for genital herpes protects some women but not men.
- Health & Medicine
Herpes vaccine progresses
A new vaccine for genital herpes protects some women but not men.
- Paleontology
New fossil weighs in on primate origins
A 55-million-year-old primate skeleton found in Wyoming indicates that the common ancestor of modern monkeys, apes, and people was built primarily for hanging tightly onto tree branches.
