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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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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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PET imaging: radioactivity to see inside the body

Medical imaging is a fantastic tool available for doctors to help find a diagnosis or to help treat patients. Almost everyone knows about X-ray Computed Tomography (CT) or Magnetic Resonance Imaging (MRI). However there is another technique, widely used but yet less famous, Positron Emission Tomography (PET). That’s a shame because PET imaging is an…
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