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.
http://setileague.org/
The SETI League is a nonprofit membership organization dedicated to the privatized electromagnetic search for extraterrestrial intelligence, coordinating amateur radio astronomers worldwide in the hunt for signals from other civilizations. The site offers extensive technical resources covering antennas, receivers, and software, alongside publications, press releases, and the popular "Ask Dr. SETI" column.
https://www.qsl.net/gara
GARA (Greater Area Radio Association) hosted its club site on QSL.net, featuring repeater listings, member rosters, and information about joining the group. The file index reveals pages covering multiple frequency bands (50, 144, 222, and 440 MHz) along with affiliations with ARES, RACES, SKYWARN, and ham radio webrings typical of late-1990s amateur radio club sites.
https://101science.com/Radio.htm
A comprehensive free electronics and electrical engineering reference hub covering everything from basic electricity and Ohm's Law to advanced RF design, DSP, amateur radio, and circuit simulation. With hundreds of curated links, formulas, tutorials, data sheets, and calculators organized across multiple phases of learning, it serves as a structured self-study guide for electronics enthusiasts and engineers alike.
https://panspermia.org/
Cosmic Ancestry is a deep-dive scientific resource exploring the theory of panspermia, arguing that life on Earth originated from space and that all evolutionary innovation depends on genetic material of cosmic origin. The site covers astrobiology, comets as delivery systems, interstellar dust, the work of Fred Hoyle and Chandra Wickramasinghe, and presents extensive evidence comparing Darwinism with the Cosmic Ancestry hypothesis.
http://users.rcn.com/rmacedo
Robert Macedo's homepage covers emergency communications in Eastern Massachusetts, with a focus on ARES, RACES, and SKYWARN activities including severe weather activation reports dating back to 1997. The site documents real storm events like nor'easters, tropical storms, and severe weather outbreaks alongside training drills, NWS Taunton SKYWARN program info, and links to ham radio and weather resources nationwide.
http://atlasoftheuniverse.com/
Created by Richard Powell, this stunning educational site presents nine nested maps of the universe, each roughly ten times the scale of the previous, zooming out from the nearest stars to the entire visible universe 14 billion light years away. Multilingual and richly illustrated, it offers a rare sense of cosmic scale that makes abstract astronomical distances genuinely comprehensible.
https://marcclub.org/
The Montgomery Amateur Radio Club is the official web presence for a local ham radio club, bringing together amateur radio enthusiasts in the Montgomery area. The site serves as a hub for club information, though the page content is minimal at this snapshot.
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://qsl.net/jh3ybs/index_e.html
The JH3YBS Hyogo Scout Council Amateur Radio Club represents the official radio station of the Boy Scouts Hyogo Council in Japan, supporting amateur radio activities within scouting. The site outlines club activities including JOTA (Jamboree on the Air), TDOTA, overseas jamborees, contests, and equipment details, making it a valuable hub for scout radio enthusiasts.