The supermassive black hole at the heart of our galaxy spat out an enormous flare of radiation 3.5 million years ago that would have been clearly visible from Earth.
Astronomy
Oct 8, 2019
14
154
Known to many as muscle wire or memory metal, shape memory alloys are materials that can be bent or deformed, and then return to their original shape when heat is applied. While people are most familiar with the material ...
Materials Science
Oct 3, 2019
0
23
University of Tokyo researchers have announced a new approach for electrical cooling without the need for moving parts. By applying a bias voltage to quantum wells made of the semiconductor aluminum gallium arsenide, electrons ...
Quantum Physics
Oct 3, 2019
0
103
As the World Athletics Championships get underway in Qatar on Friday, the environmental cost of holding a top-tier sporting event in a sweltering desert has been thrust into the global spotlight.
Environment
Sep 27, 2019
0
73
Emissions of greenhouse gases have a warming effect on the climate, whereas small airborne particles in the atmosphere, aerosols, act as a cooling mechanism. That is the received wisdom in any case. However, new research ...
Environment
Sep 25, 2019
0
288
How long does it take to cool a sample environment furnaces from 1000 degrees C to 80 degrees C? Answer: 4.5 hours. This wastes a lot of precious neutron beam time so what has SINE2020 been doing about it?
General Physics
Sep 20, 2019
0
4
About 466 million years ago, long before the age of the dinosaurs, the Earth froze. The seas began to ice over at the Earth's poles, and the new range of temperatures around the planet set the stage for a boom of new species ...
Earth Sciences
Sep 18, 2019
0
1576
Later during this century, around 2060, a paradigm shift in global energy consumption is expected: we will spend more energy for cooling than for heating. Meanwhile, the increasing penetration of cooling applications into ...
General Physics
Sep 16, 2019
0
10
A team of researchers with members from China, Germany, the U.K. and the U.S. has found a way to entangle photons generated millions of miles apart. In their paper published in the journal Physical Review Letters, the researchers ...
When Earth's species were rapidly diversifying nearly 500 million years ago, that evolution was driven by complex factors including global cooling, more oxygen in the atmosphere, and more nutrients in the oceans. But it took ...
Archaeology
Aug 15, 2019
3
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