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://qrz.com/cgi-bin/webcall
QRZ.com is the premier ham radio callsign lookup database, allowing operators to search for licensed amateur radio users by callsign, name, address, grid square, or county. Beyond the core database, the site offers logbooks, DX spotting, forums, exam practice, license renewals, and a bustling swap meet for ham radio gear.
http://ibiblio.org/pub/academic/agriculture/agronomy/ham/BOATANCHORS
Hosted on ibiblio, this is an archive of the Boatanchors mailing list digests, covering vintage and antique radio equipment collecting and restoration. The archive spans hundreds of digest issues alongside FAQs, welcome files, and supplementary resources for enthusiasts of classic tube-based radio gear.
https://front.emilkirkegaard.dk/
Emil O. W. Kirkegaard is a quantitatively minded researcher whose personal site serves as a hub for his extensive academic publications covering psychometrics, intelligence research, behavioral genetics, and population studies. The site lists dozens of peer-reviewed papers published in journals like Comparative Sociology and OpenPsych, alongside links to his English and Danish blogs and YouTube channel.
https://openrepeater.com/
The OpenRepeater Project is an open-source initiative to build a low-cost, Linux-based amateur radio repeater controller using single-board computers like the Raspberry Pi. Managed by N3MBH, the site offers downloads, a knowledge base, setup guides, and community forums for ham radio operators looking to build their own duplex repeater systems.
https://las-skycamp.org/
The LAS Equinox Sky Camp is the UK's largest star party, bringing hundreds of amateur astronomers together for a week of dark-sky observing at Kelling Heath Holiday Park on the North Norfolk coast. The site covers event logistics, pitch booking advice, vendor trade stands, talks, and links to associated astronomy societies and suppliers.
http://qsl.at/
DokuFunk is the world's largest archive dedicated to the history of radio and electronic media, based in Vienna with worldwide membership and over six million objects in its collection. The organization focuses on both broadcast radio and amateur radio history, preserving QSL cards and other radio-related artifacts under the motto 'No future without origins.'
https://ciechanow.ski/moon
Bartosz Ciechanowski's deep-dive interactive article on the Moon covers everything from its orbital mechanics and phases to tides, eclipses, craters, and gravitational effects, all brought to life with stunning real-time 3D simulations and draggable visualizations. One of the most richly illustrated and technically impressive science explainers on the web, it invites readers to genuinely experience lunar concepts rather than just read about them.
http://www.hawastsoc.org/
The Hawaiian Astronomical Society, founded in 1949, is a nonprofit dedicated to promoting amateur astronomy across Hawaii through monthly public star parties, school outreach, and members-only dark sky observing sessions. The site features a deep sky atlas, an astronomy newsletter, event schedules, and live solar imagery from SDO, making it a rich hub for stargazers in the islands.
http://web.ticino.com/wlog2000/wlog
WLOG2000 is a ham radio logbook software project by Swiss operator HB9OAB, offering a professional Windows-compatible logging application for amateur radio, CB, SWL, and BCL operators. The site features software downloads, Yaesu transceiver reviews, DXpedition logs, and the WASL Lakes Award program, making it a rich resource for the ham radio community.
https://www.qsl.net/g4prs
The Poole Radio Society (G4PRS) is a UK-based amateur radio club representing enthusiasts in the Poole area, hosted on the QSL.net network. The site serves as the club's online presence, likely featuring member information, club activities, and resources for local ham radio operators.