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://repeater-builder.com/
Repeater Builder is a dedicated resource for amateur radio enthusiasts focused on building, modifying, and maintaining repeater systems. The site dives into the technical side of ham radio infrastructure, making it a go-to reference for hobbyists who want to construct or upgrade their own repeaters.
https://tcfmc.org/
The Twin Cities FM Club (TCFMC) is a Minnesota-based amateur radio organization dedicated to emergency communications, community education, and operating local repeater frequencies for ham radio operators in the Twin Cities area. The site features club nets, a weekly swap shop on 146.76, membership sign-up, and resources on technologies like Wires-X, EchoLink, and AllStarLink.
https://empslocal.ex.ac.uk/people/staff/mrwatkin
Matthew R. Watkins is a mathematician and honorary researcher at Exeter University whose site centers on his celebrated 'Secrets of Creation' trilogy, making analytic number theory and prime numbers accessible to general audiences. The site also features a number theory and physics archive, prime number resources for beginners, and links to his eclectic range of interests including parapsychology, the I Ching, and psychogeography.
http://findu.com/
findU is a massive 58GB database archiving APRS (Automatic Packet Reporting System) data including weather observations, position reports, vehicle tracking, and telemetry from amateur radio operators worldwide. The site powers real-time weather forwarding to NOAA and the National Weather Service, and even tracks amateur radio payloads aboard the International Space Station.
http://mathematicalpoets.weebly.com/
A research project exploring the intersection of mathematics and poetry through a historical timeline tracing connections between mathematicians and poets across the centuries. The site offers a curated timeline, sources, and resources for anyone curious about how these two disciplines have influenced each other.
https://www.qsl.net/w8ea
The Licking County Contest Group (LCCG) is a club of amateur radio operators in Licking County, Ohio who gather around the competitive side of the hobby. The site links to contest resources like ARRL Contests and the KA9FOX DX Library, and serves as a memorial to longtime local ham Otto Geyer, W8EA.
WWW.Weca.Org
NEW!
https://weca.org/
The Westchester Emergency Communications Association (WECA) has been serving the Hudson Valley region through amateur ham radio since 1972, with a base repeater on 147.06 MHz. The site offers an extensive range of resources including APRS live mapping, ARES/RACES emergency communications info, FCC license exam prep, hamfests, local repeater listings, and SKYWARN weather spotting details.
https://craq.club/
The Club Radio Amateur de Québec (CRAQ), founded in 1926 and celebrating its 100th anniversary, is one of Quebec's oldest amateur radio clubs, offering membership resources, technical articles, repeater information, QSL cards, and licensing exam preparation. The site includes live HF operation logs, contest schedules, D-STAR networking stats, and a rich archive of club activities and events.
https://stormeffects.com/
Brian Morganti's StormEffects is a personal site dedicated to storm chasing, featuring an extensive collection of storm and landscape photos, chase videos, and chase summaries from real weather events. The site also touches on astrophotography, making it a rich visual record of one enthusiast's pursuit of dramatic natural phenomena.
https://jmol.sourceforge.net/
Jmol is a free, open-source Java application and HTML5 tool for visualizing chemical structures in interactive 3D, supporting molecules, crystals, biomolecules, and materials. The project offers downloadable binaries, extensive scripting documentation, demos, and a community mailing list, making it a go-to resource for chemistry education and research.