Qu'est-ce qu'un commutateur, comment fonctionne-t-il et pourquoi sont-ils généralement cliquables?
août 24, 2019
Translating…
This 15-minute explainer video might be the only video you’ll need to learn as much about switches as you’ll ever care to find out.
Video – how fingerprint recognition works
In this episode of computerphile, Dr. Isaac Triguero, a lecturer in data science at the University of Nottingham, gives a high-level overview of the kind of fingerprint feature-matching algorithm used in mobile phones. Image: YouTube
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How aerogel is made and why it’s so cool
Veritasium visited Dr. Stephen Steiner at Aerogel Technologies in Massachusetts to learn about the wonders of silica aerogel, a solid that is only twice as dense as air. My sister gave me a small chunk of aerogel about 10 years ago and it’s one of my favorite possessions.
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Owls have asymmetrically placed ears to track prey
I have 4 or 5 beautiful great horned owls in my backyard. I see them every day. This short National Geographic video explains why owls are such great hunters: huge light-sensitive eyes, fringed wings that allow them to fly silently, and asymmetrically placed ears that picked up sounds a fraction of a second apart to […]
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Ditch the capsules and get this precision drip coffeemaker for 75% off
Are we done with capsule coffee makers yet? Sure, they’re easy. But they are not so easy on the environment, and it’s debatable whether they actually make a better cup. Luckily, there’s never been a better time to switch back to the good old reliable drip method – especially when drip coffeemakers have quietly been […]
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This Linux computer plus router is the size of a ring box
If there’s one thing that stayed consistent through the last decade or so of tech industry turmoil, it’s the love affair between techies and Linux. There’s just a ton you can do with the OS, and its open-source format means you can customize your rig from the ground up. Apparently not content with that level […]
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6 next-gen dash cams that do more than just record
Accidents happen. And when they do, you’re going to want a dash cam for a second pair of eyes. At the minimum, a decent dash cam can save you vast sums of time and money in case of an accident. But a really good dash cam can do a whole lot more. Here are six […]
