New research reveals how galaxies avoid early death

Galaxies avoid an early death because they have a "heart and lungs" which effectively regulate their "breathing" and prevent them from growing out of control, a new study suggests.

Scientists solve the puzzle of directional hearing underwater

When underwater, humans cannot determine where a sound comes from. Sound travels about five times faster there than on land. That makes directional hearing, or sound localization, nearly impossible because the human brain ...

What's the sound of a hundred thousand soccer fans?

Mention vuvuzela to soccer fans, and they may cringe. The plastic horn rose to prominence during the 2010 World Cup in South Africa, where tens of thousands of those instruments blared in packed stadiums. The loud, buzzing ...

New method provides direct SI traceability for sound pressure

Scientists at the National Physical Laboratory (NPL) - the UK's National Measurement Institute - have developed an optical method for remotely measuring sound pressure inside a fully anechoic chamber which is the first to ...

Skydiver aims to break sound barrier in free fall

His blood could boil. His lungs could overinflate. The vessels in his brain could burst. His eyes could hemorrhage. And, yes, he could break his neck while jumping from a mind-boggling altitude of 23 miles (37 kilometers).

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