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January 26, 2023

The hand carved in the wall of the moat. Photo by Yuli Schwartz, Antiquities Authority

A huge 1,000-year-old moat and a mysterious handprint carved into the rock were uncovered in front of the walls of Jerusalem

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The new parts of the defense system on the walls of Old Jerusalem against Crusader attacks were discovered during archaeological excavations by the Antiquities Authority on Sultan Suleiman Street, prior to the laying of infrastructure at the initiative of the Jerusalem Municipality through the Moriah Jerusalem Development Company
Green light absorbs the nitrogen vacancy defects in a diamond crystal which is emitted in a metallic resonator and enables the operation of the quantum microwave amplifier with low noise. Photo credit: Technion spokespeople

A new technology for detecting microwave radiation will help in space exploration and quantum computing

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Today, there are already several effective technologies for amplifying and detecting weak microwave signals, and some of them make it possible to detect even a single microwave particle (photon), but they require the use of superconducting materials cooled almost to the temperature of absolute zero, the Technion researchers were able to increase the necessary cooling by more than 50 degrees
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