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://w5ac.tamu.edu/
W5AC is the Texas A&M University Amateur Radio Club, founded in 1912, making it one of the oldest university radio clubs in existence. The site covers club meetings, repeater information, nets, field day events, emergency communications, and free license exam sessions open to students and the public.
http://citynight.com/camera
Robert W. Swan's pioneering live telerobotic internet camera, mounted atop an antenna tower at Amateur Radio Station WA6ZJG in Alameda, California, has been running continuously since June 1995. Visitors can remotely aim the camera left or right and watch live street-level views of the San Francisco Bay Area, making it one of the earliest publicly controllable webcams on the internet.
https://www.qsl.net/k4gc
K4GC Bryan's amateur radio page focuses on the art of building homebrew transmitters and receivers, showcasing projects like a 6L6 tube transmitter. Bryan shares his passion for collecting hard-to-find vintage radio parts including tube sockets, variable capacitors, and boat anchor components accumulated over more than twenty years.
https://dictionary.obspm.fr/
Created by M. Heydari-Malayeri at the Paris Observatory, this trilingual etymological dictionary covers thousands of astronomy and astrophysics concepts in English, French, and Persian, tracing the roots and definitions of terms from the oldest to the newest. It stands out as a freely accessible, interdisciplinary reference that fills a gap left by conventional astronomical glossaries, with entries organized alphabetically and supplemented by historical and linguistic context.
http://k1kkm.org/
K1KKM is a personal amateur radio operator's site identified by the distinctive callsign in the domain name. Though the page text is minimal, the callsign format strongly suggests a ham radio enthusiast sharing their station and hobby activities.
https://wh6ko.net/
Karen and Kevin's personal homepage chronicles their amateur radio adventures as licensed operators WH6CWD and WH6KO, originally from Hawaii and now settled in Oregon. The site blends ham radio content with personal memories, pet photos, and snapshots of Pacific Northwest life including multiple winters of notable snowfall.
https://qsl.net/yo3kaa
The Romanian Amateur Radio Federation's web presence serves as a gateway to the official site for Romania's national amateur radio organization. Visitors are automatically redirected to the federation's main site, which represents the governing body for ham radio operators across Romania.
https://www.qsl.net/w9ikn
The Elgin Amateur Radio Society (E.A.R.S.), callsign W9IKN, was a ham radio club based in Elgin, Illinois with roots stretching back to the early 1930s. This archived homepage serves as a farewell tribute, noting the club's disbanding and expired licenses in 2007, with a link to its past history preserved by member Chuck Henrici (N9TZO).
http://bcares.org/
The Benton County Amateur Radio Emergency Service (BCARES) connects licensed ham radio operators in Benton County, Oregon who volunteer to provide emergency communications support for the Sheriff's Office and other local agencies during disasters. The site covers the group's capabilities including packet radio, voice, Morse code, and amateur television, and also lists upcoming license classes and examinations for those looking to join.
https://qsl.net/dx100dx
DX100DX is the official site for a special event amateur radio station operated from Batangas City, Philippines, celebrating the 100th anniversary of Philippine independence from Spain during the 1998 CQ Worldwide DX Contest. The joint venture between the Mabuhay DX Group, Philippine DX Foundation, and the Philippine Amateur Radio League includes contest logs, DXpedition photos, QSL card info, and an online WebLogBook.