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://everyone.melonland.net/~nature
Nature Camp is a collaborative MelonLand Guild bringing together nature enthusiasts who share a love of bugs, plants, mushrooms, rocks, and wildlife photography. The site features a member directory, forum discussion links, and curated nature resources like iNaturalist and BugGuide, all built and maintained collectively by its growing community.
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://hamradio.lv/
Created by Andris Bruņenieks (callsign YL2FD), this Latvian-language site offers a rich exploration of ham radio history, including the history of wireless telegraphy, radio in Latvia, the Titanic disaster, and Marconi's legacy. Visitors will also find technical resources covering antenna theory, propagation formulas, CW keys, and vintage rigs like Drake and Heathkit.
https://webbdeepsky.com/
The Webb Deep-Sky Society is an international organization founded in 1967 bringing together amateur and professional astronomers devoted to observing double stars and deep-sky objects such as galaxies, nebulae, and clusters. Members receive access to publications like The Deep-Sky Observer, monthly featured objects, star atlases, and invitations to annual meetings and star parties.
https://qsl.net/sidxa
The Swan Island DX Association is an informal club of amateur radio operators in the Raleigh, North Carolina area united by the pursuit of DX contacts and QSL card collecting. The site includes meeting details, member photos spanning multiple years at local restaurants, links to DX bulletins, and a history of the CIA clandestine radio station on Swan Island that inspired the club's name.
http://vdazone.org/hamlinks.html
Compiled by the Northern Berkshire Amateur Radio Club (NoBARC), this extensive link directory covers virtually every corner of amateur radio, from ARRL resources and antenna plans to ATV, SSTV, antique radios, and weather satellite imagery. With over 1,300 curated links organized into dozens of categories, it serves as a comprehensive jumping-off point for ham radio operators of all interests.
http://scdxc.org/
The Southern California DX Club (SCDXC) is a 77-year-old amateur radio organization focused on DX (long-distance) contacts, bringing together ham radio enthusiasts across the Southern California region. The site hosts membership info, newsletters, a digital library of amateur radio materials, and links to key resources like the ARRL, NCDXF, and QSL bureau services.
https://qth.com/ka9fox
Scott Neader KA9FOX runs this long-standing ham radio site out of La Crosse, Wisconsin, focused on contesting and DXing with resources like contest score rumors, QSL info, DX bulletins, and mailing list summaries. Featured in QST Magazine, RSGB Radio Communication, and numerous other publications, this site has been a go-to hub for contesters and DXers since April 1995.
https://bacteria.icu/
Stanislaus runs this enthusiastically nerdy site dedicated to prokaryotes and bacteria, complete with a gallery, wiki, and guestbook hosted on Neocities. The playful 'Bacteria Intensive Care Unit' theme and self-described obsession with microbiology make it a charming corner of the web for fellow microbe enthusiasts.
https://uh.edu/~jclarage/astr3131/lectures/4/einstein/Einstein_stanford_Page7.html
A lecture page from a University of Houston astronomy course (ASTR 3131) explaining Einstein's theory of general relativity and the concept of curved spacetime. It covers how mass and energy deform the fabric of spacetime, using accessible analogies like a ball on a bedsheet to illustrate four-dimensional curvature.