If these walls had ears, they might tell a homeowner some interesting things. Like when water is dripping into an attic crawl space, or where an open window is letting hot air escape during winter.
Engineering
Sep 15, 2010
0
0
(PhysOrg.com) -- Airenergy is a gadget that can harvest free electricity from WiFi signals such as those from a wireless Internet connection, apparently with enough efficiency to make it practical for recharging devices such ...
A group of Tohoku University researchers has developed a theoretical model for a high-performance spin wave reservoir computing (RC) that utilizes spintronics technology. The breakthrough moves scientists closer to realizing ...
Condensed Matter
Mar 6, 2024
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64
Researchers have developed a new way to control and manipulate optical signals by embedding a liquid crystal layer into waveguides created with direct laser writing. The new devices enable electro-optical control of polarization, ...
Optics & Photonics
Mar 4, 2024
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191
New measuring techniques will enable improved measurements of the Earth's ionosphere, a key to studying and reducing the impact of space weather.
Planetary Sciences
Feb 27, 2024
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49
We live in an era of data deluge. The data centers that are operated to store and process this flood of data use a lot of electricity, which has been called a major contributor to environmental pollution. To overcome this ...
Condensed Matter
Oct 17, 2023
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18
In July 1982, train signals in Sweden misfired and erroneously turned red. The culprit, believe it or not, was a space storm that started 150 million kilometers (93 million miles) away.
Planetary Sciences
Mar 31, 2023
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457
Researchers have devised a new concept of superconducting microwave low-noise amplifiers for use in radio wave detectors for radio astronomy observations, and they have successfully demonstrated a high-performance cooled ...
General Physics
Mar 20, 2023
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502
Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers. They are often used in long-distance communication fiber optic cables and fiber-based lasers. Invented ...
Optics & Photonics
Jun 16, 2022
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183
Biomedicines are produced by living cells and are used to treat cancer and autoimmune diseases among other things. One challenge is that the medicines are very expensive to produce, something that limits global access. Now ...
Biochemistry
Jun 15, 2022
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59
