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A Weber bar is a device designed to detect gravitational waves, first devised and constructed by physicist Joseph Weber at the University of Maryland. The device consisted of aluminium cylinders, 2 meters in length and 1 meter in diameter , antennae for detecting gravitational waves .
Allegro was a ground-based, cryogenic resonant Weber bar, gravitational-wave detector [1] run by Warren Johnson, et al. at Louisiana State University in Baton Rouge, Louisiana. The detector was commissioned in the early 1990s, and was decommissioned in 2008.
Direct detection of gravitational waves had long been sought. Their discovery has launched a new branch of astronomy to complement electromagnetic telescopes and neutrino observatories. Joseph Weber pioneered the effort to detect gravitational waves in the 1960s through his work on resonant mass bar detectors. Bar detectors continue to be used ...
A torsion-bar antenna (TOBA) is a novel scheme for a gravitational wave detector, proposed by M. Ando, et al. in 2010.The proposed design is composed of two, long, thin bars, suspended as torsion pendula in a cross-like fashion.
Speed, flow, occupancy and other metrics from loop detectors and other sensors in the freeway of the State of California, U.S.A.. Metric usually aggregated via Average into 5 minutes timesteps. 39,000 individual detectors, each containing years of timeseries Comma separated values Regression, Forecasting, Nowcasting, Interpolation (updated ...
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The TNT Tool (or Denver Tool as it was formerly known) is a multi-purpose tool used by firefighters, emergency personnel, and law enforcement officers to gain forcible entry [1] to buildings, automobiles, etc. during emergency situations. It is a combination axe, sledgehammer, pry tool, ram, and D-handle pull tool.
In April 2015, it was targeted by a Chinese attack tool named Great Cannon that redirected massive amounts of Internet traffic to servers used by GreatFire. [ 17 ] A sister site, FreeWeibo , monitors and makes available content from leading Chinese microblogging site Sina Weibo that has been censored and deleted by Chinese authorities under the ...