How 5G is Likely to Put Weather Forecasting at Risk

If the great Samuel Clemens were alive today, he might modify the famous meteorological quip often attributed to him to read, “Everyone complains about weather forecasts, but I can’t for the life of me see why!” In his day, weather forecasting was as much guesswork as anything else, reading the …read more

Ask Hackaday: Experiences With Capacitor Failure

Regular readers of Hackaday are intimately knowledgeable about old electronics, and whether it’s about that old oscilloscope sitting in the pile of other oscilloscopes, or the very rare vintage computer made in a Soviet bloc country, someone somewhere knows how to fix it. One of the biggest problems with these …read more

Televox: The Past’s Robot of the Future

When I read old books, I like to look for predictions of the future. Since we are living in that future, it is fun to see how they did. Case in point: I have a copy of “The New Wonder Book of Knowledge”, an anthology from 1941. This was the …read more

Israel’s Moon Lander Crashed, and That’s OK

Some bittersweet news today as we get word that Israel’s Beresheet spacecraft unfortunately crashed shortly before touchdown on the Moon. According to telemetry received from the spacecraft right up until the final moments, the main engine failed to start during a critical braking burn which would have slowed the craft …read more

The $50 Ham: Checking Out the Local Repeater Scene

So far in this series, we’ve covered the absolute basics of getting on the air as a radio amateur – getting licensed, and getting a transceiver. Both have been very low-cost exercises, at least in terms of wallet impact. Passing the test is only a matter of spending the time …read more

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Why Satellites of the Future Will be Built to Burn

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By Tom Nardi | April 22, 2019

There’s no shortage of ways a satellite in low Earth orbit can fail during the course of its mission. Even in the best case scenario, the craft needs to survive bombardment by cosmic rays and tremendous temperature variations. To have even a chance of surviving the worst, such as a …read more
Video Mangler For All Your Video Mangling Needs

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By Brian Benchoff | April 22, 2019

Back in the ’70s and ’80s, before we had computers that could do this sort of thing, there were fully analog video effects. These effects could posterize or invert the colors of a video signal, but for the best example of what these machines could do just go find some …read more
RIP Rex Garrod, Creator Extraordinaire

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By Jenny List | April 22, 2019

Earlier this month, the youth motocross champion, special effects creator, inventor, TV presenter, and Robot Wars competitor, [Rex Garrod] died at the age of 75 after a long battle with dementia. We do not often carry obituaries here at Hackaday, and it’s possible that if you are not a Brit …read more
A High-Speed Slide Scanner Build

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By Lewin Day | April 21, 2019

Photographic slides were popular in the middle part of the 20th century, but are long forgotten now. If you’ve found a handful in a dusty attic, you might consider sending them away to be digitized professionally, or using a flatbed scanner at home. [Bryan Howard] found himself with over 200,000 …read more
Build Your Own Freezer With Thermoelectric Coolers

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By Lewin Day | April 21, 2019

Freezers are highly useful devices. You can preserve food, stop a dead animal from stinking out your apartment, and keep your vodka at the optimal drinking temperature. Of course, most of us bought ours from the local whitegoods store, but [Tech Ingredients] set out to build his own (YouTube, embedded …read more
Hackaday Links: April 21, 2019

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By Brian Benchoff | April 21, 2019

A Russian company has developed a drone with a very interesting control scheme. It’s a VTOL fixed wing, that takes off like a bicopter, transitions to use wings for lift, flies around for half an hour or so, and then lands on its tail. This is a big ‘un; the …read more
Making a Flying Wing With Expanding Foam

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By Lewin Day | April 21, 2019

Many radio control aircraft modelers will be familiar with the process of cutting wings out of foam with the hot wire method. The tools are simple enough to build at home, and it’s an easy way of producing a lightweight set of wings without too much hassle. [IkyAlvin] walks a …read more

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Hackaday

How 5G is Likely to Put Weather Forecasting at Risk

Ask Hackaday: Experiences With Capacitor Failure

Televox: The Past’s Robot of the Future

Israel’s Moon Lander Crashed, and That’s OK

The $50 Ham: Checking Out the Local Repeater Scene

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Why Satellites of the Future Will be Built to Burn

All You Need To Know About I2S

The Drones and Robots that Helped Save Notre Dame

How 5G is Likely to Put Weather Forecasting at Risk

Nanoparticles Make Mega Difference for “Unweldable” Aluminum

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Hackaday Links: April 21, 2019

Retrotechtacular: Transputer

Hackaday Podcast Ep 015: Going Low Frequency, Robotic Machines, Disk Usage For Budgets, And Cellphones Versus Weather

Shadowhammer, WPA3, and Alexa is Listening: This Week in Computer Security

Teardown: The Guts of a Digital Sentry

How 5G is Likely to Put Weather Forecasting at Risk

Ask Hackaday: Experiences With Capacitor Failure

Televox: The Past’s Robot of the Future

Israel’s Moon Lander Crashed, and That’s OK

The $50 Ham: Checking Out the Local Repeater Scene

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