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)
http://foxtango.org/foxtango001.htm
Fox Tango International is a long-running Yaesu users group established in 1972, dedicated to owners and enthusiasts of Yaesu radio equipment. The site hosts technical manuals, modification pages, classified ads, and historical looks at vintage Yaesu transceivers from the 1960s through today.
https://w0ne.org/
The Winona Amateur Radio Club (WARC) is an ARRL-affiliated club based in Winona, Minnesota, founded in 1945 and serving local ham radio enthusiasts with repeaters, nets, and emergency preparedness resources. Visitors will find club news, event calendars, QSL card verification tools, a remote station, SKYWARN information, and membership details.
https://gb.nrao.edu/~rmaddale/Education/OrionTourCenter/index.htm
Created by Ronald J. Maddalena of the National Radio Astronomy Observatory, this interactive tour guides visitors through the Orion constellation using five images captured at different wavelengths including optical, infrared, and radio. Visitors can explore astronomical objects in Orion, learn the mythology behind the hunter, take a glossary-supported test, and see how the same region of sky looks dramatically different depending on the telescope used.
http://cat.boffosocko.com/
A collaborative study group blog documenting UCLA Extension's 2015 Category Theory course led by Professor Michael Miller, covering abstract algebra, functors, and related mathematical structures. Participants followed a structured syllabus across multiple chapters, sharing notes, resources, LaTeX diagrams, and meeting summaries over the summer term.
https://wwjournal.org/
Western Wildlife is the open-access, peer-reviewed journal of the Western Section of The Wildlife Society, publishing original research on ecology, natural history, management, and conservation biology of animals. Formerly known as Transactions of the Western Section of the Wildlife Society, the journal accepts manuscript submissions and makes accepted papers available online.
http://qrotec.com/
Ray Connin (KB8VU) runs QRO Technologies out of Bryan, Ohio, a site dedicated to amateur radio and high-power RF amplifier technology. The page is associated with a long-running operation dating back to 1996, suggesting deep involvement in the ham radio community.
https://terriblelizard.info/
Built by a librarian and PhD student researching the cultural history of dinosaurs in children's media, Terrible Lizard blends academic bibliography, subject guides, and curated open-access resources in the spirit of old-school faculty homepages. Visitors will find ecohorror reading lists, dinosaur-related databases, language resources, and topic shrines organized with a librarian's careful hand.
http://n5hq.com/
N5HQ is the personal ham radio site of an Extra Class operator licensed since 1978, covering SSTV, DSSTV, QSL cards, antenna design tools, and amateur radio licensing resources. The site also highlights the operator's involvement as an ARRL Volunteer Examiner, Skywarn weather spotter, and Ten-Ten International member.
http://csgnetwork.com/hamfreqtable.html
CSGNetwork's Amateur Radio Frequency Table is a comprehensive reference listing all US ham radio band allocations, including mode restrictions, calling frequencies, and licensing class privileges across bands from 160 meters to microwave. Part of a larger calculator and reference site, it also links out to related frequency tables for CB, FRS, marine VHF, cellular, and cordless phone bands.
http://k1hk.org/
K1HK is the callsign-based homepage of an amateur radio operator sharing their ham radio activities and interests. The site reflects the classic old-web style of hobbyist operators who built personal pages around their callsign and on-air pursuits.