A new method of creating laser pulses, more than 1,000 times as powerful as those currently in existence, has been proposed by scientists in the UK and South Korea.
Optics & Photonics
Nov 14, 2023
0
86
Designing a heat engine that can produce maximum power at maximum efficiency is a major challenge. Practical heat engines are limited to a theoretical efficiency called the Carnot limit, which sets a cap on how much heat ...
General Physics
Nov 1, 2023
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58
Sperm can modulate their energetics by regulating their flagellar waveform—how the sperm oscillate their tails—in order to adapt to varying fluid environments, potentially optimizing their motility and navigation within ...
Cell & Microbiology
Nov 1, 2023
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61
A thick haze has this week smothered Beijing and surrounding areas, with tens of millions of people in northern China under severe pollution warnings.
Environment
Nov 1, 2023
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1
Next-generation solar materials are cheaper and more sustainable to produce than traditional silicon solar cells, but hurdles remain in making the devices durable enough to withstand real-world conditions. A new technique ...
Materials Science
Oct 28, 2023
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233
Superconductors are materials that offer zero electric resistance to the flow of current on being cooled down below a certain critical temperature. Typically, superconductors have a very low critical temperature, close to ...
Superconductivity
Oct 3, 2023
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5
Melted remains of an old car tire. Heavily burned trees. A charred stump of an abandoned utility pole.
Environment
Sep 27, 2023
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34
Thermoelectrics enable the direct conversion of heat into electrical energy—and vice versa. This makes them interesting for a range of technological applications. In the search for thermoelectric materials with the best ...
Condensed Matter
Sep 18, 2023
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28
This summer, Albertans faced a substantial increase in their electricity bills as prices surged. My own electricity bill more than doubled to around $115 compared to the usual $30 to $50 range for a single person in a condominium.
Economics & Business
Sep 14, 2023
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2
The avalanche multiplication effect can be used to detect low-power optical signals and even single photons due to the amplification mechanism within all main ranges: near- (NIR), short- (SWIR), mid- (MWIR) and long wavelength ...
Optics & Photonics
Sep 4, 2023
0
1
