How a Film Projector Works, And Why They're Still Mechanical Marvels

When going to see a movie, many of us probably go out of our way to make sure the theater has been upgraded with high-res digital projectors. The golden age of film might be behind us, but as engineer guy Bill Hammack explains, the projector is still an impressive feat of mechanical design, capable of creating one of… » 7/07/15 9:45am 39 minutes ago

$5 Lightning Cables, Solar Batteries, and More Gadget Charging Deals

There’s no such thing as owning too many Lightning cables, and this extra long 5’ model from Spigen is only $5 today with promo code SPIGENCS [ 5’ MFi-Certified Lightning Cable, $5 with code SPIGENCS] Update: Sold Out. Check out this AmazonBasics alternative for $8. » 7/07/15 9:20am Today 9:20am

You Can Buy a HomeKit-Friendly Thermostat Starting Today

Apple announced HomeKit, its attempt to make every lightbulb and lock talk to your iPhone, well over a year ago, but things that can actually whisper sweet nothings in your iDevice’s ears have been few and far between. Most notably, you haven’t been able to buy a HomeKit-enabled thermostat, something that changes… » 7/07/15 1:33am Today 1:33am

Short doc: How people in a village shoot 100,000 rockets at each other

July 4th fireworks are nothing when compared to this insane 100,000 homemade rocket war in the village of Vrontados, Greece. Two churches in the small village fire off rockets at each other on Holy Saturday and the spectacle of the mock war is incredible to behold. There are rockets blazing every which way in both… » 7/07/15 12:30am Today 12:30am

Where did the word OK come from and what does it actually mean?

We say it almost everyday. When friends text to meet at 7. Ok. When your boss hands you an assignment. Ok. When you need to pay the bill. Ok. And so on. But where did that term come from? What did it first mean? This interesting word breakdown from Arika Okrent dives into the real origin of OK and reveals how it’s… » 7/06/15 11:54pm Yesterday 11:54pm