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Author Archives: Al Williams

When Hams Helped Polar Researchers Come In From The Cold

Posted on May 17, 2022 by Al Williams

We always enjoy [The History Guy] videos, although many of them aren’t much about technology. However, when he does cover tech topics, he does it well and his recent video …read more Continue reading When Hams Helped Polar Researchers Come In From The Cold→

Posted in antarctica, ham radio, history, IGY, radio hacks

Building Petahertz Logic with Lasers and Graphene

Posted on May 17, 2022 by Al Williams

There was a time when we thought a 50 MHz 486 was something to get excited about. In comparison, the computer this post was written on clocks in at about …read more Continue reading Building Petahertz Logic with Lasers and Graphene→

Posted in laser, laser hacks, Science | Tagged Graphene

Repairing an HDMI Adapter Doesn’t Go So Well

Posted on May 17, 2022 by Al Williams

[Adrian] has a lot of retrocomputers, so he uses an RGB to HDMI converter to drive modern monitors. In particular, he has a box that uses a programmable logic chip …read more Continue reading Repairing an HDMI Adapter Doesn’t Go So Well→

Posted in hdmi, repair hacks, retrocomputing | Tagged Repair

Can You Hear Me Now? Lunar Edition

Posted on May 17, 2022 by Al Williams

Despite what it looks like in the movies, it is hard to communicate with astronauts from Earth. There are delays, and space vehicles don’t usually have a lot of excess …read more Continue reading Can You Hear Me Now? Lunar Edition→

Posted in ken shirriff, Space | Tagged Apollo

Striping a Disk Drive the 1970 Way

Posted on May 16, 2022 by Al Williams

These days, mass storage for computers is pretty simple. It either uses a rotating disk or else it is solid state. There are a few holdouts using tape, too, but …read more Continue reading Striping a Disk Drive the 1970 Way→

Posted in Hackaday Columns, IBM, mainframe, retrocomputing

The Hair Dryer Monitor Fix

Posted on May 16, 2022 by Al Williams

[Johnny] had a monitor that he was particularly fond of. The whole monitor appeared dead, and he decided to open it up and find out what could be wrong. He …read more Continue reading The Hair Dryer Monitor Fix→

Posted in ldo regulator, repair hacks | Tagged Repair

Light Whiskers from Soap Bubbles Is Real Science

Posted on May 16, 2022 by Al Williams

You might think that anything to do with a soap bubble is for kids. But it turns out that observing light scattering through a soap bubble produces unexpected results that …read more Continue reading Light Whiskers from Soap Bubbles Is Real Science→

Posted in branched flow, bubble, laser, laser hacks, light whiskers, Science

Computer Thing Might be Garbage

Posted on May 15, 2022 by Al Williams

[Tech Time Traveller] has a lot of voices in his head this week, and most of them are worried about his wife’s reaction to him buying other people’s garbage. We …read more Continue reading Computer Thing Might be Garbage→

Posted in retrocomputing, TV Typewriter

Upcycling a Flat Bed Scanner

Posted on May 15, 2022 by Al Williams

[Piffpaffpoltrie] had a 20-year-old Acer flatbed scanner that they just couldn’t justify keeping. But it does seem a shame to throw away a working piece of gear. Instead, the old …read more Continue reading Upcycling a Flat Bed Scanner→

Posted in flatbed scanner, light table, misc hacks, upcycle

Running ARM Chips on Algae Power

Posted on May 15, 2022 by Al Williams

What’s the size of an AA battery and can run an ARM Cortex M0+ for six months? Well… probably an AA battery, but obviously, that wouldn’t be worth mentioning. But …read more Continue reading Running ARM Chips on Algae Power→

Posted in algae, green hacks, Science | Tagged Photosynthesis

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