Six, 12, and 18. These are the ages that most people get their three adult molars or large chewing teeth towards the back of the mouth. These teeth come in at a much later age than they do in our closest living relative, ...
Evolution
Oct 6, 2021
0
314
Humans in the Middle East were using complex fishing tools and techniques by 12,000 years ago, according to a study published October 6, 2021 in the open-access journal PLOS ONE by Antonella Pedergnana of the Archaeological ...
Archaeology
Oct 6, 2021
0
57
3,200 miles beneath Earth's surface lies the inner core, a ball-shaped mass of mostly iron that is responsible for Earth's magnetic field. In the 1950's, researchers suggested the inner core was solid, in contrast to the ...
Earth Sciences
Oct 6, 2021
0
108
On Aug. 4, 2020, one of the largest non-nuclear explosions in history pulverized a Beirut port and damaged more than half the city. The explosion resulted from the detonation of tons of ammonium nitrate, a combustible chemical ...
General Physics
Oct 6, 2021
2
82
A single device that both generates fuel and oxidant from water and, when a switch is flipped, converts the fuel and oxygen into electricity and water, has a host of benefits for terrestrial, space and military applications. ...
Materials Science
Oct 6, 2021
2
428
In rural and Indigenous communities with limited access to weather data, generations of farmers, fishers, herders, hunters and orchardists have relied on indicators such as the first snowfall, emergence of a certain plant ...
Environment
Oct 6, 2021
0
29
The oil spill that's fouling Southern California beaches has many Californians wondering why the state still has offshore oil wells more than 50 years after the state declared an end to new drilling, and more than 35 years ...
Environment
Oct 6, 2021
0
60
In a year that has set records for the number of ships coming and going through the ports of Los Angeles and Long Beach, Friday was not unusual. Winds were light, and the steady movement of traffic at sea was routine.
Environment
Oct 6, 2021
0
22
The enormous surge of face-mask use since the beginning of the global lockdown in March 2020 has saved countless human lives, a crucial component to limiting the transmission of the novel coronavirus. But with 129 billion ...
Environment
Oct 6, 2021
1
153
A Texas company's plans to drill for oil in the Everglades may have a tougher time winning approval, now that an administration that's skeptical of fossil fuels has taken over in Washington.
Environment
Oct 6, 2021
1
50
