Science & Nature
1439 sites
Subcategories:
- Astronomy & Space (396)
- Chemistry (8)
- Earth Sciences (26)
- Biology (79)
- Physics (30)
- Mathematics (59)
- Weather & Climate (104)
- Amateur Radio (682)
- Electronics (47)
https://astronomy-links.net/SETI_Battleship.html
Clark M. Thomas offers a witty essay examining the movie Battleship through the lens of real SETI science, exploring the plausibility and implications of contact with extraterrestrial civilizations. The piece weaves together astronomy, pop culture criticism, and philosophical musings about what our radio and TV signals might reveal to any alien observers.
https://jonasparnow.xyz/
Jonas Parnow's curated blog collects 59 handpicked articles, films, podcasts, and data visualizations focused on the climate crisis, from India's solar energy rise to European wildfires. Each entry is carefully selected and contextualized, making it a thoughtful and opinionated guide to understanding the accelerating climate emergency.
https://k3ltc.com/
Nate Berry's personal amateur radio page serves as a virtual QSL card for callsign K3LTC, a General class operator based in New York's FN30mu grid square. The site details his involvement with the Suffolk County Radio Club, activity on 2 meter and 70 centimeter bands, and even features an image transmitted via SSTV.
https://helicoprion.neocities.org/
A shrine dedicated to Helicoprion, the ancient spiral-toothed shark whose bizarre whorl jaw has fascinated paleontologists for decades. The site includes speculative audio of how the creature might have sounded and even a campaign to vote Helicoprion into the fighting game SkullGirls, showing real enthusiasm for this prehistoric oddity.
http://astronomie.be/registax
RegiStax and waveSharp are free image processing tools developed by Cor Berrevoets and an international team, designed specifically for stacking and sharpening astronomical images from AVI video files. The site hosts downloads, release notes, and articles from contributors covering lunar, solar, and planetary imaging techniques under Linux and Windows.
https://www.qsl.net/k6ls/test.html
Phil (K6LS) has assembled an extensive directory of links to test and measurement equipment manufacturers, dealers, and related resources for amateur radio and electronics hobbyists. The collection spans commercial makers like Tektronix, Fluke, and Rohde & Schwarz alongside used equipment dealers, repair services, and homebrew resources, making it a useful reference for anyone sourcing or servicing RF test gear.
https://www.qsl.net/ema-arrl/clublist.html
A comprehensive directory of amateur radio clubs across Eastern Massachusetts, organized under the ARRL Eastern Massachusetts section. Visitors will find dozens of clubs listed by name with links, spanning general, repeater, packet, contest, school, and company club categories.
https://solarviews.com/eng/mars.htm
Calvin J. Hamilton's comprehensive Mars reference page covers everything from the planet's geology and atmosphere to its moons, polar regions, and exploration missions like Viking, Pathfinder, and the Mars Rovers. Packed with images, animations, 3D galleries, and scientific articles, it serves as a deep-dive educational hub for anyone fascinated by the Red Planet.
https://frrl.org/
The Fox River Radio League (FRRL) is a century-old amateur radio club based in the Fox Valley area of Illinois, offering meetings, license testing, repeaters, and Field Day events to radio enthusiasts. With over 100 years of history and a congressional record entry marking its anniversary, this club site serves as a hub for both seasoned operators and newcomers seeking licensing exams and community.
http://hamradio.dk/
The official site of EDR København, the Copenhagen chapter of the Danish Amateur Radio Society, operating under the callsign OZ5EDR. A hub for Danish ham radio enthusiasts, covering club activities, news, and resources for the amateur radio community in Copenhagen.