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://m0yng.uk/
Christopher M0YNG is a radio amateur based in Gloucestershire whose personal site covers amateur radio, solar and battery tracking, self-hosted tech, and small computing projects like the Penkesu Tiny Computer. The site is notably available via Gopher, Gemini, and Tor in addition to HTTP, making it a fascinating example of smolnet philosophy in practice.
https://radioamator.ro/
Radioamator.ro is a comprehensive Romanian-language portal for amateur radio operators, covering everything from equipment construction and digital communications to DX activities, contest calendars, and propagation bulletins. The site serves the Romanian ham radio community with articles, a callbook, forums, and links to the Romanian Amateur Radio Federation.
https://realhamradio.com/
K8CU's amateur radio station site features well-documented technical construction projects including high-power GS35B RF amplifiers, HF log periodic antennas, GPS frequency standards, and Six meter equipment. Vintage receiver restoration, mobile RFI solutions, and detailed technical articles make this a rich resource for serious radio amateurs worldwide.
https://qsl.net/k3mx
The Tri-State DX Association (K3MX) is an amateur radio club based in Matamoras, Pennsylvania, serving operators near the New York and New Jersey borders with a focus on HF DX chasing and contesting. Founded in 1996, the club logs contest results like the Pennsylvania QSO Party and emphasizes emergency traffic handling, international goodwill, and good station engineering.
http://nightskylive.net/
NightSkyLive.net appears to be a site dedicated to live or near-live views of the night sky, likely featuring sky cameras or astronomy broadcasts. The domain name strongly suggests a focus on real-time celestial observation for stargazers and astronomy enthusiasts.
http://insti.physics.sunysb.edu/physics/physics_links.htm
Maintained by Stony Brook University's physics department, this extensive link directory covers physics preprints, online journals, conferences, jobs, data sources, and institutions. Researchers and students will find hundreds of curated links spanning Physical Review, arXiv, SLAC SPIRES, astrophysics journals, and community resources like Fermilab and the Nobel Foundation.
http://w5sdc.net/
W5SDC is the personal amateur radio homepage of a ham radio operator identified by their callsign W5SDC. The site uses a frames-based layout typical of the early web era, suggesting a classic hobbyist page dedicated to amateur radio activities and information.
https://kaskakokos.neocities.org/
Kaskakokos is a Spanish-language personal site from Cantabria featuring a section dedicated to local plant life, alongside writings and projects by the creator. The 'Plantas de Cantabria' section suggests a focus on regional flora, making it a charming mix of nature documentation and personal creative output.
http://hnsky.org/
Home of ASTAP and HNSKY, two free astronomy programs offering image stacking, plate solving, and a full-featured planetarium for amateur astronomers and astrophotographers. The creator also shares their own astrophotography images and equipment details, making this a practical hub for both software users and sky enthusiasts.
https://vu2ese.com/
Ashhar Farhan (VU2ESE) is an Indian radio amateur who designs and builds his own transceivers, SDRs, and test equipment, sharing full schematics and source code freely with the builder community. Highlights include the BITX SSB transceiver, the hackable sBitx SDR with integrated FT8 support, and a growing collection of homebrew test gear like spectrum analyzers and tone generators.