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.
How tri-color e-ink works
How data error correction works
3Blue1Brown has a good two-part introduction to error correction codes, which are what make it possible to check the integrity of data and in some cases fix it. READ THE REST
How road sign reflectors work
I watch a lot of explainer videos, and Technology Connections makes some of the best. The host is knowledgeable, explains things clearly, and is funny, to boot. In this episode, he talks about retroreflectors, which are reflective surfaces that send light back to its source with very little scattering. This is very useful for road… READ THE REST
Here's how asteroid mining will transform the world
Asteroid mining sounds fantastically futuristic, but it is almost feasible with existing technology. We have already landed spacecraft on asteroids and taken samples. Now all of that "simply" needs to be done at a much larger scale mining a well-scouted space rock. The payoff for humanity will be astronomical. Via Kurzgesagt: Getting rare materials from… READ THE REST
28 essential items you'll need to survive this winter
We've probably all been holding our breath about this for a while. And now that it's here, we can start getting used to the idea that this winter will be unlike any before it. With COVID's impact on the holidays, we're all expecting some big changes this time around. However, Mother Nature isn't really all… READ THE REST
These Kodak scanners, printers, and projectors are the perfect holiday gift and already on sale
This year has given us a perfect opportunity to work on a holiday season project. Since virtually every family has loads of history trapped in old slides, negatives, and photos, this might be just the right time to make sure those precious and historic moments are digitized and preserved for eternity. That used to mean… READ THE REST
BetterBack wants to change how you sit and eliminate your back pain once and for all
Your mom always told you to sit up straight. And, chances are, she wasn't telling you that just to hear herself talk. Posture matters–and for more than just appearances. Right now, about 31 million Americans are experiencing some form of lower back pain. Half of all working Americans suffer from back pain every year, and… READ THE REST