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://futuretimeline.net/beyond.htm
FutureTimeline.net is an ambitious speculative reference site that maps out predictions for humanity and the universe across centuries, millennia, and beyond, covering topics from AI and nanotechnology to the far future of the cosmos. Organized as a detailed chronological timeline with supporting blogs, data trends, and artwork, it offers a sweeping vision of where science and civilization may be headed.
https://gadgeteer.us/
Bill Meara's Gadgeteer site is a celebration of electronic homebrewing, centered on ham radio projects including DSB and SSB rigs, tube receivers, and QRP builds alongside a popular podcast called SolderSmoke. The site also ventures into amateur astronomy, model rocketry, and kite aerial photography, making it a rich destination for technically adventurous hobbyists.
https://ve7sar.blogspot.com/
The digital home of the SARC Communicator, the newsletter of Surrey Amateur Radio Communications (VE7SAR) based in Surrey, BC, Canada. Each issue is packed with homebrew projects, DX expedition reports, radio history features, and equipment reviews, making it a rich resource for ham radio enthusiasts of all experience levels.
https://w4zt.com/
Tony King's W4ZT memorial site covers his extensive amateur radio activities, including repeaters, antenna construction, power supply modifications, and DXpeditions. Now preserved as a tribute after Tony's passing in 2009, the site offers a wealth of technical resources and personal projects from a dedicated ARRL life member based in the Atlanta area.
https://lostartoflogarithms.com/
Charles Petzold's web-book-in-progress explores the history, utility, and mechanics of logarithms, from their origins in 400-year-old mathematical tables to slide rules and spherical trigonometry. With over 30 chapter-length pages covering topics like the Book of Vlacq, log-log scales, and John Napier's life, this is a rich and deeply researched labor of love for math history enthusiasts.
https://qsl.net/kc4gzx/kc4gzx/project.htm
KC4GZX is a sprawling amateur radio and electronics resource by a Georgia ham operator, featuring over 2100 DIY homebrew projects spanning antennas, amplifiers, transmitters, microcontrollers, lasers, and more. It also includes a Northeast Georgia ham directory, repeater listings across multiple southeastern states, and a hamfest schedule, making it an invaluable hub for regional and hobbyist radio enthusiasts.
http://gazers.org/
The Penobscot Valley Star Gazers (PVSG) is a Maine-based astronomy club hosting monthly meetings both in-person at John Bapst High School in Bangor and via Zoom. The site offers a calendar of upcoming events, a gallery, an archive, and real-time comet tracking resources for members and stargazing enthusiasts in the region.
https://weather.cod.edu/
NEXLAB at College of DuPage is a meteorology lab and weather data hub offering satellite imagery, radar, numerical models, and local forecasts for the Illinois/DuPage region. Run by COD's meteorology program, it also supports storm chasing activities, academic coursework, and real-time campus weather conditions.
https://k3ltc.com/
Nate Berry's personal amateur radio page serves as a virtual QSL card for callsign K3LTC, a General class operator based in New York's FN30mu grid square. The site details his involvement with the Suffolk County Radio Club, activity on 2 meter and 70 centimeter bands, and even features an image transmitted via SSTV.
http://currentsky.com/
Bob Riddle's 'Qué tal in the Current Skies' is a long-running amateur astronomy site that began in the late 1980s as posts to the Big Sky Telegraph BBS and evolved over 30+ years into a web resource covering Earth and Space topics. The site now serves as a transitional landing page pointing visitors to his continuing work on Substack, with archived daytime and nighttime sky photos, calendar data, and astronomical observations.