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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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Everyday Science #1: The shower-curtain effect

Sometimes, weird events happen in everyday life. One of them might happen every single day while you take a shower. It never occurred to you that the shower curtain seems to approach you when the water is on, like it is coming for you? Well, it does and there is a scientific explanation for that.…
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Science of cooking

Cooking is the arrangement of food supplies. It is cultural and depends on the ressources available and the climate the people are in. It evolved a lot through time and regions. Spicy, sweet, salty, tasty, every person has a different affinity with meals. However, what they all have in common, they respond to a primary…
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A B Sinusoid D E F G 🎶 (part 2)

In the previous post [1] we established how sounds and notes works. We also explained the functioning of some of the most famous instruments: guitars and pianos. These two are part of string instruments, one of three instrument families. The other two families are going to be describe in this post: wind instruments and percussion…
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A B Sinusoid D E F G 🎶 (part 1)

Music is an important part of our everyday life. It is with us when we drive, when we run, when we go out, when we chill out at home. It calms us, it relaxes us, it soothes us, it makes us happy, it affects our mood and our emotions. With their different sonorities thanks to…
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Viruses: better understanding for better protection

Knowledge is necessary to understand the world especially when it comes to medical issues. Knowing what we are up against helps us to react in a proper way and not to fear the threat. This is as important for researchers as it is for the public. One category of those threats are viruses. What is…
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Collective memory: “The North remembers”

What is behind this quote from the TV serie Game of Thrones? In this fiction, when a wrong is made to a part of the North’s population, the whole region remembers the event and held a grudge on the persons responsible. I have noticed similar situations happen for us. When a traumatic event occurs (for…
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The emergence of borders

Nowadays, borders are clear limits between two countries. Sometimes with tolls and controls, other times with guards or armed militaries to prevent people to go in or out. They can be closed or wide open. They can be crossed. They are also fluctuating. They have been here all our lives. The questions we can ask…
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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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