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://www.qsl.net/pkrs
The President Karami Radio Society (PKRS) is an internationally recognized amateur radio club based in Tripoli, Lebanon, operating under the callsign OD5RAK. The site covers club history, members, awards, technical resources, and eQSL information, offering a window into ham radio culture in northern Lebanon.
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).
https://www.qsl.net/k0usa
The Ak-Sar-Ben Amateur Radio Club is a ham radio club based in Omaha, Nebraska, serving the greater Council Bluffs area with activities including VE testing, Field Day, SKYWARN weather spotting, and ARES emergency communications. The club's homepage serves as a gateway to member resources, repeater info, hamfests, and ARRL-affiliated programming.
https://cdxa.org/
The Carolina DX Association (CDXA) is a ham radio club based in the Carolinas, dedicated to DX hunting and contesting under callsign W4DXA. The virtual club room offers members antenna calculators, packet cluster links, photo albums, contest resources, roster management, and event payment tools for club luncheons.
http://stellar-database.com/scale.html
A concise educational page from stellar-database.com that walks readers through the mind-bending scale of the universe, from the Earth's diameter out to the edge of the known cosmos. It explains astronomical units, light-years, and parsecs with precise conversion figures, making vast cosmic distances tangible and comparable.
https://nzastronomy.co.nz/directory
The New Zealand Astronomy Directory is a comprehensive curated guide to stargazing operators, observatories, and dark sky experiences across New Zealand, from Qualmark-approved planetariums to guided night sky tours on Stewart Island. Visitors can browse listings by region to find observatories, astrophotography tours, and dark sky places throughout both the North and South Islands.
http://rainforest.gardenwebs.net/
Stern's Splendors of the Rain Forest is a richly illustrated site dedicated to tropical plants, focusing on orchids, bromeliads, tillandsias, cacti, and succulents native to the Americas. Featuring exotic photo galleries, cultural guides, and links to major plant societies worldwide, it serves as an enthusiast's showcase for rain forest horticulture.
http://laughingpoliceman.com/
The Laughing Policeman Wireless Society (LPWS) is a long-running alternative amateur radio club founded in 1978, dedicated to celebrating the humorous and absurd side of the hobby through audio recordings, court cases involving radio pirates, repeater antics, and radio buffoonery. The site is packed with sections covering pirate radio, CB court cases, Russian jammers, CTCSS tones, and even a "History of Swearing," making it a uniquely entertaining corner of the amateur radio world.
https://qsl.net/lu2ee
A QSL.net-hosted page for the amateur radio callsign LU2EE, indicating an Argentine ham radio operator with a personal station page. The site appears to be a file directory index, likely containing logs, images, or station information typical of ham radio operator pages on the QSL.net network.
https://academics.cehd.umn.edu/hatch/default.htm
Produced by the staff of the James Ford Bell Museum of Natural History at the University of Minnesota, this reference site covers the distribution and ecology of native and introduced fish species found in Minnesota. Curated by Andrew M. Simons and Jay T. Hatch, it serves as both a scientific resource and a public education tool tied to the museum's fish collection.