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How Humans Can Sort Of See The Invisible

Video: What superpower would you want to have? The ability to fly? Teleport? Turn invisible? Time travel? Heal? What about to ability to see the invisible? Not exactly the flashiest power you can have especially because we can kind of, sort of, do that right now. This lovely animation explainer from Amaël Isnard shows how though we can’t see magnetic forces in action, we at least get to see the auroras in the north and south poles, which reveal the invisible magnetic field of Earth.


How Do Vending Machines Understand Fake And Real Coins?

Video: One of my life dreams as a child was to be able to fool a vending machine with coin-like objects. I mean, how smart could a vending machine be, right? Wrong. More like how dumb a kid I was. Vending machines use light sensors to measure the size of a coin and electromagnets to detect the metal type to determine what kind of coin it is. If you’re not shaped like a dollar and built like a dollar, you ain’t a dollar in their book.


What Are These Strange Bright Spots On The Sun?

Image Cache: From our perch here on Earth, the sun seems pretty uniform from day to day. But a closer look in this new magnetic map reveals that it’s teeming with activity — and with some intriguing bright spots.


How Does The Cue Ball Always Come Out Of The Pool Table?

Video: It’s magnets! Seriously. There’s a layer of iron underneath the cue ball that gets nudged and pulled by a strong magnet inside the pool table, putting it onto a completely different track than the rest of the balls in pool. That track is the one that spits out the cue ball. The other balls in pool don’t have metal inside so they don’t react to the magnet at all and just get sent down to their regular station through the regular track.


Magnetic Darts Are Scary Powerful

Video: Need a weapon? Grab some magnets and some nails and you got yourself a hell of an arrow launcher. The magnets push out the nail darts so fast that it’s basically a mini crossbow mixed with a nailgun, no batteries necessary. Magnetic Games said that in order to get this powerful shot, the arrow and the launcher have to have the same polarity.


Panasonic Wants To Transform Home Cooking With Its Countertop Induction Oven

This is pretty cool: Panasonic has announced at the International Home & Hardwares Show that it will be producing a Countertop Induction Oven.


A Spinning Top Floating Inside A Smoke-Filled Bubble Looks Like Magic

Video: Bubbles, magnetic levitation and gyroscopes — there’s a ton of super-cool DIY physics at work in the Levitron. Created by Dustin Skye, it’s a spinning top floating in mid-air inside a smoke-filled bubble, all for your viewing pleasure.


Watch A Magnet Inside A Sock Break Open A Safe In Seconds

Video: Safes, locks and other security measures of that nature? They’re all eventually doomed because they’re designed to open. It’s just a matter of how long it takes. With the help of rare earth magnets, it takes just seconds. Here is Mr Locksmith demonstrating how a rare earth magnet can exploit the nickel piece in this Sentry Electronic Safe to get it open without any damage.


Mixing Glow Sticks With Ferrofluid And Magnets Basically Breaks The Visible Spectrum

We know the chilling magic that is using magnets to control ferrofluid, it’s the closest thing we have to the black arts. But when you add the the chemicals inside a glow stick to the mix, it becomes something so visually awesome that you feel like you’re seeing things move and pop and react in ways and colour combinations you’ve never seen before. So cool.


Griffin's Quick-Release BreakSafe Cable Gives MagSafe Powers To USB-C

If you love the USB Type-C port on Apple’s 12″ MacBook but miss the quick release MagSafe power connector that probably saved your old MacBook’s life on many occasions, Griffin now has a simple way to get it back.


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