sound wave

Many things make a noise when you hit them, but not many are commonly used to play music — why is that? Jim Woodhouse looks at harmonic and not so harmonic frequencies and at how percussion instruments are tuned.
The Sun is no longer singing solo and is now part of a stellar choir
Adrian Bird, a performance engineer at Rolls Royce, tells Plus that it doesn't matter what anyone else thinks. You can follow your dreams to do maths and it can lead you to the skies.
Researchers observe the Inverse Doppler effect for the first time.

Astronomers have for the first time listened to the heartbeat of a star other than our own Sun.

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