joule

Civilpedia is like Wikipedia for people. It’s a book where you can show off who you are and teach everyone how to do anything. [i]A book of human experience, [/i]and a fine a place for you to just be yourself. Our wonderful composer lets

When I was a kid, I read about Westinghouse & Edison. They battled to see what form of electricity was better at the time for society in a "war of the currents". Reading about electricity ⚡️ battles led me to read about business too.

Before small #cockroft-walton multipliers became inexpensive x-ray machines used to use large iron transformers. These things are the highest voltage transformers you'll likely ever come across, turning 120V (or 240V in euroland) into 50,000V, 75,000

This is a list of active, and solved, or wontfix issues for Civilpedia. Development help is welcome! Please reach out to @joule if interested.   [b]Feedback & Improvements[/b] [ul][li]When a page is empty there’s no “page is n

Humans of the internet, I present to you the BlitzenKlavier (lightning-piano). It’s a large solid-state Tesla coil that takes in 120VAC, MIDI, and spits out 8 foot musical lightning bolts! [img]../storage/fragment_images/42879498820102740_cd3fac28b4

[m]⍁LaTeX{} + e^{i⍁pi} + 1 = NaN[/m] Just sit ⍁ right back and you'll hear a tale a [b]tale of[/b] a fateful ⍁ trip, that [i]started[/i] from this [url=https://frozen.port]frozen port,[/url] aboard this [u]fun road[/u] trip.&#

Also referred to a Line Output Transformer, the flyback transformer is a high frequency, high voltage transformer most often used to power cathode ray tubes. Flybacks are capable of generating some decently high voltages, typically anywhere from 10 to 35k

Recently, this "[url=https://www.indiegogo.com/projects/lomi-turn-waste-to-compost-with-a-single-button#/]automated composter[/url]" showed up in my instagram feed and I was curious about the carbon cost.  If it's reducing the compost

With the spread of COVID-19 there is a need for ventilators to help people with severe lung inflammation survive the disease. The USA healthcare system has a big shortage of these now when they are needed dearly. We set out to design a [b]reusable[/

Nonionizing radiation, the stuff of microwave, infrared and visible light doesn’t have the energy needed to break chemical bonds, so we may sit out in the sun and get bombarded with a thousand watts and feel no ill effects. Once we reach ultraviolet tho

A camera that captures video footage of CO2, NOx, SO2 and other gas emissions from from vehicles, power plants, gas flares, would be pretty cool. Let's make one! [img]../storage/fragment_images/63957192955728260_037c0ce694352e685bb52f296e103ded.j

For whatever reason, Vedder never added shut down to the VESC 6.0, despite the power supply chip having this capability. Here is how to add it. [t]You will need...[/t]The following components: [ul][li]10K Resistor[/li][li]3.3V Zener Diode[/li][li]

Invented in 1913 by William D. Coolidge, the Coolidge tube is by far the most popular method used to generate x-rays. Essentially it’s just a thermionic diode, but one optimized for high voltages and high powers. Like a thermionic diode a Coolidge tube

The control PCB for the HandyVent is a simple circuit board made with through-hole components that are easy to solder. This short page will help you understand how to build it.  [img]../storage/fragment_images/10973986380014022_70ab1fa4b23a0295627249

In early 2018, friends and I decided to work on something rather unorthodox from our regular activities –we set out to bring new life into an old steel ship. Some of you whom are local to San Francisco may recognize the vessel, as it had been moored nea

It took a great deal of failure and subsequent reflection to recognize this not-so-obvious idea. It is very fashionable in the technology industry to build products which capitalize on people’s attention, but this is a scarce resource nowadays.

The goal of this project was to build an inexpensive portable x-ray machine, since such a device didn’t seem to exist! Odd, since such a machine could prove to be very useful in remote or underequipped areas such as army camps or poorer countries. T

The 2x2A is a vacuum rectifier that, before the advent of the silicon diode, was used to rectify the high voltage needed for fun things such as television tubes. Now the silicon diode replaced the 2×2 nearly 40 years ago at the time of this writing, but

Tektronix sent me a new TDS2024C! Now what do we do with new $1500 toys? WE RIP THEM APART (⌐■_■)っ═一 [t]The Finish[/t]Let’s look at this one from behind. Not much going on there, apart from a USB device port, FCC information, a kens

In 1895, a professor by the name of Wilhelm Conrad Rontgen discovered a source of invisible rays which were capable of penetrating materials not normally translucent to ordinary light. Not only this, but these mysterious rays also caused certain chemicals

After witnessing the image of a mosquito magnified in a laser beam outside I decided to investigate the phenomenon further. I started by locating scuzzy water. Ponds lacking, I decided to take water out of the bowl of my 6 year old spider plant. I then pr

I did some experiments today with trying to detect propane using a 3.33um filter. This filter is selective for methane, which should be inside "natural gas" in detectable amounts. My first experiment was to see if I could see the gas c

Both face shields, and the PET plastic sheets which they are made from are in short supply right now. This project will let you build a face shield from any thin translucent plastic, even a bread bag, by spreading the plastic tightly with a 3D printed pa

This is a short how-to guide on creating a positive pressure PPE suit, as imagined by [url=https://robots-everywhere.com/re_wiki/pub/web/Cookbook.SaltMask.html]Matteo Borri[/url]. Positive pressure suits are very handy for isolating yourself from toxi