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://astroring.auroradynia.com/
The Astronomy Webring, hosted by auroradynia, connects enthusiasts of astronomy, astrophotography, and astrophysics across the old web. Visitors can join the ring, browse the member list, or simply hop between sites dedicated to all things space.
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://cqrlog.com/
CQRLOG is a feature-rich ham radio logging application for Linux, built on a MySQL database and supporting over 140 radio types via hamlib integration. The site serves as the official home for the software, offering downloads, user forums, DX cluster support documentation, and updates from the development team.
https://www.qsl.net/ve3fcg
The Festival City Amateur Radio Club (FCARC) serves amateur radio operators in the Stratford, Ontario area, listing their linked repeater system frequencies, IRLP node details, and APRS information. The site also offers a beginner's guide to ham radio, club information, and a curated collection of links for other hams including callsign search tools and dealer listings.
http://astroa.physics.metu.edu.tr/bigeyes.html
A comprehensive reference table listing the world's largest optical telescopes, compiled by Bill Arnett and hosted at Middle East Technical University's physics department. Each entry includes the telescope's aperture, name, geographic coordinates, altitude, and technical notes, making it a handy quick-reference for astronomy enthusiasts and researchers.
https://wxlog.com/
Stephen's Storm Log is a personal storm chasing diary cataloging hundreds of tornado, supercell, and severe weather chase events dating back to 1997, organized by SPC risk level and year. With decades of documented chases across the American South and Plains, this is a remarkable long-running record of one chaser's adventures tracking some of the most intense storms on record.
http://leregne.chez.com/
Le Regne Mineral is a French bimonthly mineralogy magazine covering earth sciences with original articles and high-quality mineral photography from renowned specialists like Jeff Scovil and Mick Cooper. Considered one of the top five mineral magazines in the world after four years of publication, it serves collectors, rockhounds, and mineralogy enthusiasts across Europe and beyond.
https://w8dc.org/
The Grand Rapids Amateur Radio Association (GRARA), callsign W8DC, is a Michigan-based amateur radio club offering meetings, license testing sessions, repeater access, and annual events like Field Day and a Hamfest. The site keeps members informed with meeting announcements, minutes, newsletters, and membership information for the greater Grand Rapids area.
https://aty.sdsu.edu/glossary.html
Andrew T. Young's comprehensive glossary defines technical terms used in atmospheric optics, covering phenomena like green flashes, mirages, and refraction drawn from optics, meteorology, astronomy, and geodesy. With 26 major sections and nearly 200 cross-linked entries, it serves as an authoritative reference for anyone studying how light behaves in Earth's atmosphere.
http://sss-mag.com/smith01.html
SSS Online is a long-running RF and spread spectrum engineering magazine offering deep technical resources on Smith charts, S-parameters, impedance matching, Eb/N0, and link budgets. Managed by Pegasus and active since 1995, it serves RF engineers and ham radio enthusiasts with articles, software downloads, tutorials, and reference material on microwave and wireless design topics.