There are many admirable things about this 1937 video that explains how a car's differential works, but my favorite thing is the way they use a very simple model, and add complexity in stages. All explainer videos should be so clear!
How a car's differential works
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- explainer videos
Video explains epidemic R-number through crocheting
Kathrine Frey Frøslie uses crocheting to show how quickly Covid cases increase as the R-number (spreadability) goes up. What a cool way to visualize it! Kathrine Frey Frøslie works as associate professor in Biostatistics, and runs the popular science knitting blog Statistrikk.no. The crochet work is made for the exhibition CoviDesign at Greve museum in… READ THE REST
Excellent 1966 Australian PSA on the switch from £sd to decimalized currency
Enjoy the delightful music and animation in this 1966 FAQ explainer video to get Australians used to the switch from pounds, shillings, and pence, to dollars and cents. [Via r/ObcureMedia] READ THE REST
How tri-color e-ink works
E-ink displays are usually monochrome, but tri-color displays are starting to become more common and affordable. The Adafruit video explains how tri-color e-ink displays work. READ THE REST
This 5.1-channel home theater system can turn your living room into a screening room
Some people are just soundbar people. And hey, plenty of soundbars are more than serviceable, offering up robust quality sound that makes your favorite TV shows, movies, and video games really pop. But, when you stack a soundbar next to a premium 5.1 surround-sound home theater setup? Well, the results are really night and day. It's kind… READ THE REST
Clearcover saves money for drivers who know the right auto insurance provider matters
Sometimes, it doesn't feel like being smart and driven gives you a ton of advantage over those who aren't as bright or aren't as motivated. Even though you've worked hard to launch a career, build some positive credit history, or start your journey toward a happy, productive future, the simple fact that you're what Gen… READ THE REST
This crazy-cool power station makes assembling power outlets a simple snap away
There's a reason why the Swiss Army knife has been an essential everyday carry item since long before the term EDC was even a thing. It appears to the Boy Scout mentality in all of us, with the utility to pull out a blade, corkscrew, nail file, or practically anything you need at a moment's notice. That… READ THE REST