Tesla Coil Makes Sodium Plasma
Looking for a neat trick to do with your Tesla coil? [The Action Lab] uses his coil to make a metal plasma — in particular, sodium. You can see the …read more Continue reading Tesla Coil Makes Sodium Plasma
Author Archives: Al Williams
Honey, We Shrunk the Nuclear Reactor
[Power Engineering] took a trip to the Westinghouse facility that provides maintenance for nuclear reactors. The research division there has a new microreactor called eVinci and — according to the …read more Continue reading Honey, We Shrunk the Nuclear Reactor
Electroplated 3D Printed Sword: Shiny!
We all want to 3D print metals, but the equipment to do that is still beyond most home workshops. However, [HEN3DRIK] takes resin 3D-printed items and electroplates them. Might not …read more Continue reading Electroplated 3D Printed Sword: Shiny!
Don’t Believe Everything You Read: The Great Electric Toaster Hoax
We’ve all looked up things on Wikipedia and, generally, it is usually correct information. However, the fact that anyone can edit it leads to abuse and makes it somewhat unreliable. …read more Continue reading Don’t Believe Everything You Read: The Great Electric Toaster Hoax
The 13.5 Million Core Computer
Having a dual- or quad-core CPU is not very exotic these days and CPUs with 12 or even 16 cores aren’t that rare. The Andromeda from Cerebras is a supercomputer …read more Continue reading The 13.5 Million Core Computer
Fuel Cell Catalyst: Less is More
A fuel cell is almost like a battery that has replenishable fuel. Instead of charging a battery with an electric current, you recharge a fuel cell with something like hydrogen …read more Continue reading Fuel Cell Catalyst: Less is More
New Metric Prefixes get Bigger and Smaller
It always fascinates us that every single thing that is made had to be designed by someone. Even something as simple as a bag and box that holds cereal. Someone …read more Continue reading New Metric Prefixes get Bigger and Smaller
How to Repair? The Death of Schematics
There was a time when, if you were handy with a soldering iron, you could pretty easily open up a radio or TV repair business. You might not get rich, …read more Continue reading How to Repair? The Death of Schematics
At a Loss For Words? Try a Teleprompter
With everyone doing videos these days, you might want to up your narration game with a teleprompter. [Modern Hobbyist] can help. Since he does videos — like the one about …read more Continue reading At a Loss For Words? Try a Teleprompter
Logic via DNA
We often say you can make logic gates out of nearly anything. [Steve Mould] would agree as he just finished playing naughts and crosses (tic tac toe if you are …read more Continue reading Logic via DNA