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Hardware & Electronics

The most popular blog posts about hardware & electronics on Hacker News. 3,046 posts.

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2162

Why is my TI-99/4A in Black and White?

My first computer was a Texas Instruments TI-99/4A. Longtime readers may remember a previous article where we implemented TI-99/4A BASIC as a Scripting Language for modern computers. Recently I got nostalgic for the actual hardware so I got my 99 out of the closet where it had been for a decade o…

2164

Holography without Lasers: Hand-drawn Holograms (1999)

I've stumbled across a technique for drawing holograms directly upon a plastic plate by hand. It sounds impossible, but I've been sitting on the livingroom sofa making holographic images of floating polyhedra, words, 3D starfields, opaque objects, etc. No laser, no isolation table, no darkroom, no expensive film…

2173

Spatial Audio

I got the following e-mail from a producer/engineer: “I just want to try and alert you to the potential seismic scam happening with this Atmos roll out. Â Atmos catalog remixing is being done…

2178

Remarkable Pro Colors

I was happy with the Remarkable 2 and when the Remarkable Pro came out I decided to go with a second one in order to be able to see two pages at once : one as a reference for reading and one for writing, as one would normally do with paper. Expensive approach, I know.

2186

High-Security Mechanical Locks (2020)

Outside of a very few specialized fields high-security locks are almost totally unknown. Even in the field of locksmithing where high-security locks are known, they are often misunderstood. Today I am going to offer you a primer on the fascinating world of high-security mechanical locks, the securit