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People are switching to wired headphones because they think bluetooth cooks your brain. But are the RF waves transmitted from AirPods really dangerous or is it just an internet myth?

People are switching to wired headphones because they think bluetooth cooks your brain. But are the RF waves transmitted from AirPods really dangerous or is it just an internet myth?

394,904 次观看 • 26 天前

How does Netflix know when you try to take a screenshot? Turns out it doesn’t. Rather than a simple piece of software recognizing a screenshot attempt and blacking out the screen, what’s going on is actually happening at the hardware level.

How does Netflix know when you try to take a screenshot? Turns out it doesn’t. Rather than a simple piece of software recognizing a screenshot attempt and blacking out the screen, what’s going on is actually happening at the hardware level.

485,957 次观看 • 1 个月前

USB C cables all look the same, so how does your computer know the difference between them? Turns out there’s a tiny chip inside most USB C cables that identifies its capabilities. Someone made an open source app that uses that chip to list out the info so you never have to confuse cables again.

USB C cables all look the same, so how does your computer know the difference between them? Turns out there’s a tiny chip inside most USB C cables that identifies its capabilities. Someone made an open source app that uses that chip to list out the info so you never have to confuse cables again.

71,304 次观看 • 12 天前

Every time you print from a color printer, hundreds of yellow dots are embedded into the page. Everything you’ve ever printed can be traced right back to the printer with metadata. Is this surveillance or a useful tool for law enforcement?

Every time you print from a color printer, hundreds of yellow dots are embedded into the page. Everything you’ve ever printed can be traced right back to the printer with metadata. Is this surveillance or a useful tool for law enforcement?

34,021 次观看 • 10 天前

Foreign routers are banned in U.S. But did you know you can build your own? It’s called a homebrew router and not only is it pretty easy but you get way more control over it.

Foreign routers are banned in U.S. But did you know you can build your own? It’s called a homebrew router and not only is it pretty easy but you get way more control over it.

178,306 次观看 • 1 个月前

You can text someone hundreds of miles away with no cell service, no wifi, and no servers in between. All it takes is a cheap radio board and open source software like Meshtastic. Meshtastic turns the board into a node in an encrypted mesh, capable of receiving and relaying information across vast distances.

You can text someone hundreds of miles away with no cell service, no wifi, and no servers in between. All it takes is a cheap radio board and open source software like Meshtastic. Meshtastic turns the board into a node in an encrypted mesh, capable of receiving and relaying information across vast distances.

76,567 次观看 • 1 个月前

Wifi signals can be used to see your body through walls. Using open source software and some cheap hardware, you can measure the disturbances in wifi waves emanating from a router. Those disturbances are measured and converted into body shapes to tell you where someone is in a room.

Wifi signals can be used to see your body through walls. Using open source software and some cheap hardware, you can measure the disturbances in wifi waves emanating from a router. Those disturbances are measured and converted into body shapes to tell you where someone is in a room.

97,502 次观看 • 1 个月前

Why are some HDMI cables insanely expensive? Turns out there is a distinct difference between a $20 cable from Walmart and a fiber optic HDMI. Rather than using copper wiring, fiber optic cables convert video signals into light pulses which improves quality and signal at long distances.

Why are some HDMI cables insanely expensive? Turns out there is a distinct difference between a $20 cable from Walmart and a fiber optic HDMI. Rather than using copper wiring, fiber optic cables convert video signals into light pulses which improves quality and signal at long distances.

69,479 次观看 • 2 个月前

Your iPhone is also a color calibration tool for your TV. Using the Face ID sensors it reads the light emitting from your TV to figure out how far off the colors are. All you need is an Apple TV box and it’ll correct the HDMI signal in real time regardless of your TV settings.

Your iPhone is also a color calibration tool for your TV. Using the Face ID sensors it reads the light emitting from your TV to figure out how far off the colors are. All you need is an Apple TV box and it’ll correct the HDMI signal in real time regardless of your TV settings.

26,783 次观看 • 1 个月前

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