When it comes to electromagnetic waves, humans can really only directly perceive a very small part of the overall spectrum, which we call “visible light.” [rootkid] recently built an ...

You’ve likely seen an X-cube, a dichoric prism used to split light into its constituent colours–you know, those fun little ...

If you wanted to build a robot that chased light, you might start thinking about Raspberry Pis, cameras, and off-the-shelf computer vision systems. However, it needn’t be so complex. [Ed] of ...

In a recent video [QWZ Labs] demonstrates an interesting technique to use 3D printing to make creating custom PCBs rather ...

This week Jonathan chats with Toke Hoiland-Jorgensen about CAKE_MQ, the newest Kernel innovation to combat Bufferbloat! What ...

If you’re an old-schooler, you might still go to the local bar and pay for a beer with cash. You could even try and pay with ...

We know that while the cost per byte of persistent storage has dropped hugely over the years, it’s still a pain to fork out for a new disk drive. This must be why [MadAvidCoder] has taken a ...

While it has become a word, laser used to be an acronym: “light amplification by stimulated emission of radiation”. But there is an even older technology called a maser, which is the ...

Home automation with high usefulness and low annoyance tends to rely on reliable person sensing, and [francescopace]’s ...