How do quartz watches keep time? Steve Mould gives a great demonstration explaining how they work. Quartz is piezoelectric, which means when it is deformed it generates an electrical signal. A quartz watch has a tiny quartz tuning fork that's been calibrated to vibrate at 215 cycles per second. This signal is fed through a series of 14 flip-flop circuits, each of which divides the frequency of the signal by 2. By the time the signal goes through the 14th flip-flop, the frequency is one cycle per second.
Stephen Colbert explains why Trump keeps talking about his impeachable offenses in public: “Trump knows if something’s bad, you don’t admit it in public,” he said. “So, if he admits it in public it must not be bad. He’s trying to normalize it.” The host compared what Trump is doing to a husband saying, “Honey, […]
Animator Jared Owen made an excellent animated video that clearly shows how a combination lock works.
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. Image: YouTube/Technology Connections [via Dooby Brain]
Need data storage? Join the club. It may still seem like the wild west out there, and for many companies, it’s a tough choice between security and accessibility. Luckily, there’s a platform that gives you a lot of both: Polar Backup Cloud Storage. Whether you’re a busy private citizen or managing valuable company data, Polar […]
There are a lot of different language apps out there because nobody learns anything the same exact way – especially not something as complex as a new language. For some people, the best way is to dive in and start talking, but that’s easier said than done if you’re not around those natives you aspire […]
There’s movie merch and then there are artifacts – one-of-a-kind items for the true fans only. These 11 items definitely fall into the latter category. We’ve unearthed movie art, props and other fan touchstones from the major nerd franchises of the last 50 years. Gaze upon these Star Wars and Marvel collectibles and don’t worry. […]