Category: Astronomy

Science Fun Facts #1

Mathematics There are as many positive even numbers as there are positive numbers (even or odd). It is because the two sets are in bijection. N. Bourbaki, Éléments de mathématique : Théorie des ensembles, ISBN 978-3-540-34035-5 Computer science The first ever computer bug occurred in September 1947. Indeed, Admiral Grace Hopper used that word when she found…
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What is the colour of radio waves?

“Well, we can’t see them, so it means they have no colour.”We can’t see them, I agree, but does that mean they have no colour? To answer this question let’s begin with the definition of a colour. Definition from the Encyclopaedia Britannica [1]: Colour, also spelled color, the aspect of any object that may be…
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