Blog

FM Radio is Discriminating

AM radios were easy to understand. The strength of the signal goes up and down, and the audio follows. FM radio is a little more difficult. [AllAmericanFiveRadio] has an old tube FM set and takes us on a tour of how the FM discriminator works. You can see the video below. The first step is

Read More
Hackaday Links: January 21, 2024

Have you noticed any apps missing from your Android phone lately? We haven’t but then again, we try to keep the number of apps on our phone to a minimum, just because it seems like the prudent thing to do. But apparently, Google is summarily removing apps from the Play Store, often taking the extra

Read More
How Scientists are Fighting Drug-Resistant Superbugs with Phages

“It’s ridiculous just how virulent some of these bacteria get over time,” says Dwayne Roach, assistant professor of bacteriophages, infectious disease and immunology at San Diego State University. But now CNN says doctors are fighting multi-drug-resistant superbugs with “nature’s oldest predators — tiny tripod-looking viruses called phages designed to find, attack and gobble up bacteria.”

Read More
NASA Regains Contact With Its ‘Ingenuity’ Mars Helicopter

“Good news…” NASA posted Saturday night on X. “We’ve reestablished contact with the Mars Helicopter…” After a two-day communications blackout, NASA had instructed its Perseverance Mars rover “to perform long-duration listening sessions for Ingenuity’s signal” — and apparently they did the trick. “The team is reviewing the new data to better understand the unexpected comms

Read More
What’s the Solution to Gridlocked EV Chargers?

“Some of the most convenient fast-charging stations — mostly those located off major highways — have become gridlocked, especially on busy weekends,” complains the opinion editor for California’s Tribune newspaper in San Luis, Obispo. Drivers are reporting waits of half an hour or more — sometimes much more. One driver who posted on Reddit waited

Read More