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://w7dk.org/
The Radio Club of Tacoma (W7DK) is a nonprofit organization serving FCC-licensed ham radio operators in Pierce County, Washington and the South Puget Sound region. Members and visitors can find information on club meetings, repeaters, license exams, emergency communications, and the W7OS Antique Radio Museum.
https://user.xmission.com/~uarc
The Utah Amateur Radio Club (UARC) is a long-established ham radio club based in Kearns, Utah, offering members access to repeaters, HF remotes, a lending library, and an 'Elmer' mentorship list. The site covers club events like Field Day and potluck dinners, exam schedules, net schedules, and resources for both new and experienced amateur radio operators in Utah.
https://webbdeepsky.com/
The Webb Deep-Sky Society is an international organization founded in 1967 bringing together amateur and professional astronomers devoted to observing double stars and deep-sky objects such as galaxies, nebulae, and clusters. Members receive access to publications like The Deep-Sky Observer, monthly featured objects, star atlases, and invitations to annual meetings and star parties.
https://www.qsl.net/w9ikn
The Elgin Amateur Radio Society (E.A.R.S.), callsign W9IKN, was a ham radio club based in Elgin, Illinois with roots stretching back to the early 1930s. This archived homepage serves as a farewell tribute, noting the club's disbanding and expired licenses in 2007, with a link to its past history preserved by member Chuck Henrici (N9TZO).
http://yorktonstormhunter.com/
Ryan Crouse's storm hunting site documents extreme weather events across Yorkton, Saskatchewan, featuring lightning photography, storm clouds, and road condition updates. A personal hub for a dedicated storm chaser covering the Canadian prairies, with live streams and weather photos from the region.
https://www.qsl.net/oe7cwj
Christian Wieser's amateur radio page, hosted on QSL.net under the callsign OE7CWJ, appears to be a minimal personal station page that redirects visitors to a new site at qsl.net/oe3cwj. The QSL.net domain and Austrian callsign prefix make clear this belongs to a licensed ham radio operator from the OE (Austria) region.
https://lwca.net/
The Longwave Club of America (LWCA) is a dedicated organization serving enthusiasts of radio frequencies below 500 kilohertz, covering LF, VLF, MedFER, HiFER, and Part 15 experimental beacons. Members receive 'The Lowdown,' a bimonthly publication dating back to 1974, featuring DX loggings, homebrew antenna projects, natural radio phenomena, and news from operators around the world.
http://burtleburtle.net/bob/scifi/dyson.html
Bob's detailed technical exploration of Dyson swarms and torus-shaped satellite constellations covers the mathematics and orbital mechanics behind capturing a star's energy output. The page features interactive JavaScript simulations letting visitors visualize these megastructure concepts from within the swarm itself, alongside references to real-world applications like SpaceX's Starlink constellation.
http://blackcatsystems.com/
Black Cat Systems offers a wide catalog of Windows and macOS software focused on ham radio, shortwave listening, and audio utilities, including tools for SSTV decoding, ACARS, ALE, propagation forecasting, and Morse code training. The site serves as both a software storefront and a hub for amateur radio enthusiasts, with free trials available for most programs.
https://pembsbirds.blogspot.com/
Pembrokeshire Birds is a long-running blog dedicated to birdwatching observations across Pembrokeshire, Wales, covering sightings from notable sites like Skokholm Island and Teifi Marshes. With records dating back to 2008, annual reports, species lists, and detailed field notes, it serves as a rich regional ornithological resource for birders interested in Welsh wildlife.