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New design for ‘optical ruler’ could revolutionize clocks, telescopes, telecommunications

Just as a meter stick with hundreds of tick marks can be used to measure distances with great precision, a device known as a laser frequency comb, with its hundreds of evenly spaced, sharply defined frequencies, can be used to measure the colors of light waves with great precision.


Source: Computers Math - www.sciencedaily.com

Experimentally identifying effective theories in many-body systems

A furry social robot can reduce pain and increase happiness