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Everyday science

Everyday science

Listening to whales, eyeballing cosmic radiation, Usain Bolt experiences weightlessness

14 Sep 2018 Hamish Johnston
Illustration of a building-block of KM3NeT, each of which comprises 115 detections strings
String theory: the KM3NeT neutrino sea-scope. (Courtesy: Marc de Boer/Ori Ginale, KM3NeT collaboration)

Whales are huge, and you would know it if you collided with one. Neutrinos, on the other hand are tiny and rarely collide with anything. So, what could they possibly have in common? It turns out that physicists working on the KM3NeT neutrino detector in the Mediterranean Sea have managed to hear the clicking sounds produced by sperm whales. You can read more in  “A whale of a tale” by Jordan Rice.

Can the human eye detect cosmic radiation? The astronaut Scott Kelly thinks so, but does this stand up to the scrutiny of a particle physicist? Adam Falkowski seems to agree with Kelly in “Human eye can detect cosmic radiation

Finally, the sprinter Usain Bolt has joined Stephen Hawking in the ranks of people who have experienced weightlessness onboard a diving aircraft. The French aeroplane is usually used for research purposes, but on this flight Bolt demonstrated at device for drinking champagne in zero gravity. See “Bubbling Bolt toasts zero-gravity with champagne”.

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