The earliest philosophers argued that out of nothing, nothing comes (ex nihilo, nihil fit). This ignited intense philosophical and theological debates and invoked challenging questions over the coming centuries. How could ...
Space Exploration
Dec 12, 2011
96
0
A fossilized foot bone recovered from Hadar, Ethiopia, shows that by 3.2 million years ago human ancestors walked bipedally with a modern human-like foot, a report that appears Feb. 11 in the journal Science, concludes. The ...
Archaeology
Feb 10, 2011
13
0
In June 2016, an international team of 31 astronomers, led by the University of Maryland's Eleanora Troja and including Arizona State University's Nathaniel Butler, caught a massive star as it died in a titanic explosion ...
Astronomy
Jul 26, 2017
12
496
(Phys.org) —Scientists have argued for half a century about the existence of a form of diamond called lonsdaleite, which is associated with impacts by meteorites and asteroids. A group of scientists based mostly at Arizona ...
Condensed Matter
Nov 21, 2014
0
0
Over the last two decades, scientists have found ice in many locations on Mars. Most Martian ice has been observed from orbital satellites like NASA's Mars Reconnaissance Orbiter. But determining the grain size and dust content ...
Planetary Sciences
Aug 23, 2021
0
634
(PhysOrg.com) -- "I'm going to lay down and take a nap," the man said to his wife.
Other
Jan 12, 2011
6
0
(PhysOrg.com) -- Home and office energy conservation must focus on more than developing computers, appliances and other electronics that require less power to operate. Engineers say there are big energy-efficiency gains to ...
Energy & Green Tech
Apr 14, 2011
3
0
The DNA you inherit from your parents contributes to the physical make-up of your body—whether you have blue eyes or brown, black hair or red, or are male or female. Your DNA can also influence whether you might develop ...
Biotechnology
Mar 16, 2015
4
2015
A standout essay, high grade point average and stellar standardized test scores are sometimes not enough for college admissions.
Mathematics
Nov 19, 2019
1
163
What is the structure of the Earth? For starters, it consists of several layers: the crust, the upper and lower mantle, and the core. The mantle makes up most of our planet's volume—84%. The lower mantle represents 55% ...
Earth Sciences
Oct 20, 2022
0
474
