How Louis Braille’s musical notation system remains relevant 200 years after its invention

In the 1820s, Louis Braille devised a raised-dot system of letters, numbers and musical notation. 200 years later, it’s still ...
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SpaceX starts a major Starlink constellation reconfiguration

SpaceX is embarking on one of the most sweeping reshuffles of its Starlink broadband network since the first satellites went ...