Discussion on the application of silicon nitride ceramic materials

Discussion on the application of silicon nitride ceramic materials

Silicon nitride, a compound that mainly relies on artificial conditions, was developed by foreign scientists more than 150 years ago. Silicon nitride, which exists naturally on earth (about 2×5 meters), was not discovered in meteorites unti...
Japan Successfully Verifies The Theory Of Relativity On The Ground With A High-Precision Clock

Japan Successfully Verifies The Theory Of Relativity On The Ground With A High-Precision Clock

It is reported that Japanese researchers successfully verified Einstein's theory of relativity near the ground with a miniaturized high-precision clock. The researchers placed two optical lattice clocks on the "Sky Tree" TV tower in Tokyo, o...
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