The Arecibo Telescope was an amazing tool for astronomers. Built in the early 1960s, it had a 1,000-foot-wide dish and was capable of both receiving and transmitting radio signals. It did radar mapping of near-Earth asteroids, ...
Astronomy
May 22, 2023
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Princeton researchers have taken a step toward developing a type of antenna array that could coat an airplane's wings, function as a skin patch transmitting signals to medical implants, or cover a room as wallpaper that communicates ...
General Physics
Nov 3, 2021
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China is an example of a country that suffers severe damage caused by high-impact weather and accompanying floods and mudslides. Dual-polarization (dual-pol) radars, first developed in the United States in the late 1970s, ...
Earth Sciences
Jul 8, 2019
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Fast magnetoacoustic wave trains are a promising seismological probe of the sun's corona, revealing the magnetic connectivity and providing an estimation of the absolute value of the coronal magnetic field. Low-frequency ...
Astronomy
Dec 4, 2018
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Many essential military capabilities—including autonomous navigation, chemical-biological sensing, precision targeting and communications—increasingly rely upon laser-scanning technologies such as LIDAR (think radar that ...
Optics & Photonics
May 22, 2015
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It may look like just dots on a page, but an image of distant galaxies taken last week represents a huge step forward for CSIRO's Australia SKA Pathfinder (ASKAP) radio telescope in Western Australia.
Astronomy
Jun 11, 2014
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(Phys.org) —Radar systems today depend increasingly on phased-array antennas, an advanced design in which extensive grids of solid state components direct signal beams electronically. Phased array technology is replacing ...
Engineering
Mar 31, 2013
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Most people are familiar with the concept of RADAR. Radio frequency (RF) waves travel through the atmosphere, reflect off of a target, and return to the RADAR system to be processed. The amount of time it takes to return ...
Optics & Photonics
Jan 16, 2013
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(PhysOrg.com) -- TowerJazz, the global specialty foundry leader, and The University of California, San Diego, provider of a leading program in microwave, millimeter-wave and mixed-signal RFICs, today announced they have demonstrated ...
Electronics & Semiconductors
Apr 6, 2012
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Most of today's power plants--from some of the largest solar arrays to nuclear energy facilities--rely on the boiling and condensing of water to produce energy.
Energy & Green Tech
Nov 7, 2011
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