Alexander Pruss's Blog

Last weekend, I spent a while measuring screen latency (for gaming purposes) on our TV, using a Raspberry PI, a photodiode and an oscillosco...

I saw a small rectangular PCB on the sidewalk not far from my house. It looked interesting. I left it for a couple of days in case someone l...

The problem of the unity of consciousness for materialists is what makes activity in different areas of the physical mind come together into...

Decimal addition can be done by a computer using infinitely many algorithms. Here are two: Convert decimal to binary. Add the binary. Conv...

In a computer, we have multiple layers of abstraction. There is an underlying analog hardware level (which itself may be an approximation to...

I made some Atari 2600 style USB game paddles for use with Atari emulators and Pong. They're mostly 3D printed with a little bit of elec...

It is said that: he who intends the end intends the means. But the person who doesn’t know how a computer keyboard works does intend to ...

Last night I added a USB charging port to our elliptical machine, using a $0.70 buck converter, so that we can exercise while watching...

With various ongoing projects, I've acquired a lot of small electronic components in little baggies. To store them, I designed a set of ...

For quite some time, my older daughter has wanted me to make her Great Wolf Lodge Magiquest wand do something at home. So I made a simple I...