Category: Astronomy

What triggers an explosion?

Viewers of action movies or fans of the TV show Mythbusters have seen countless explosions. Fireball, detonation at a very high speed, involving explosives. Everyone can picture this destructive event. But do you really understand what is underneath this phenomenon? How an explosion occurs? Definition of an explosion Back to the basics, to what do…
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Glaciers, our largest fresh water source

In a time of global warming, scientists pull the alarm every year about the consequences. One of the consequences that worry the most is the future of glaciers and what will happen if they keep loosing ice and disappearing. When asked what a glacier is, most of us easily picture this big mass of ice…
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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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