Physicists from the FOM Foundation and the University of Amsterdam have discovered that the ancient Egyptians used a clever trick to make it easier to transport heavy pyramid stones by sledge. The Egyptians moistened the ...
General Physics
Apr 30, 2014
334
10148
Saturn's moon Titan looks very much like Earth from space, with rivers, lakes, and seas filled by rain tumbling through a thick atmosphere. While these landscapes may look familiar, they are composed of materials that are ...
Astronomy
Apr 25, 2022
0
619
To humor mathematicians, picture a pile of sand grains – say, a billion – in one square of a vast sheet of graph paper. If four or more grains occupy a single square, that square topples by sending one grain to each of ...
Mathematics
Mar 11, 2015
3
168
(PhysOrg.com) -- In more than 30 locations around the world, the phenomenon of singing sand dunes has intrigued explorers, tourists, and scientists. When an avalanche occurs or even when the sand is pushed by hand, it emits ...
Scientists have for the first time visualised the transformation of powder mixtures into molten glass. A better understanding of this process will make it possible to produce high quality glass at lower temperatures, leading ...
Condensed Matter
Apr 16, 2012
1
0
(PhysOrg.com) -- The sandfish lizard (Scincus scincus) lives in the desert sands of North Africa and burrows through the sand by wriggling. Now scientists in the US have created a computer model that emulates the physics ...
The question of when people first arrived in Australia has been the subject of lively debate among archaeologists, and one with important consequences for the global story of human evolution. Australia is the end point of ...
Archaeology
Jul 20, 2017
0
105
Part of the magic of Uluru is the way it tricks your senses. Deep orange by day, at sunrise and sunset it appears to change color, becoming a more vibrant shade of red, and then almost purple.
Earth Sciences
Dec 29, 2021
0
64
From a mechanical perspective, granular materials are stuck between a rock and a fluid place, with behavior resembling neither a solid nor a liquid. Think of sand through an hourglass: As grains funnel through, they appear ...
General Physics
Nov 17, 2014
0
0
(PhysOrg.com) -- Microfossils found in Australia show that more than 3.4 billion years ago, bacteria thrived on an Earth that had no oxygen, a finding that boosts hopes life has existed on Mars, a study published Sunday says.
Earth Sciences
Aug 21, 2011
11
0
