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://weather.mailasail.com/Franks-Weather/Home
Frank Singleton's extensive weather and sailing resource covers marine meteorology, GRIB files, GMDSS services, weather communications, and practical forecasting guidance for sailors and cruisers. With cruising logs dating back to 2000, links to national weather services, and coverage of topics from basic atmospheric theory to climate change, this site is a remarkably thorough reference for anyone navigating at sea.
https://user.xmission.com/~uarc
The Utah Amateur Radio Club (UARC) is a long-established ham radio club based in Kearns, Utah, offering members access to repeaters, HF remotes, a lending library, and an 'Elmer' mentorship list. The site covers club events like Field Day and potluck dinners, exam schedules, net schedules, and resources for both new and experienced amateur radio operators in Utah.
https://f4iha.fr/
The blog of Olivier (F4IHA), a French amateur radio enthusiast who documents his homebrew radio projects including low-power QRPP transmitters, VFOs, antenna tuners, and fox-hunting modules built with Arduinos and components costing under 30 euros. Posts cover schematics, PCB design in KiCad, measurements, and hands-on construction with detailed technical write-ups that make it a great resource for DIY radio builders.
https://meteor.iastate.edu/~jdduda/chasing/chasing.html
Jeff Duda's storm chasing log spans a decade of tornado pursuits across the Great Plains and Midwest, with lifetime stats including 71 tornadoes witnessed across 111 total chases and over 52,000 miles driven. Each year links to detailed chase accounts, making it a compelling personal record of one dedicated chaser's adventures in severe weather.
https://unifiedmicro.com/
Unified Microsystems is a small company specializing in amateur radio hardware and electronic development products, including CW keyers, receive antenna systems, sound card interfaces, and Arduino shields. Their product catalog serves ham radio operators and electronics hobbyists with unique kits and modules available through authorized dealers like DX Engineering and Ham Radio Outlet.
https://astronomy-links.net/MarsColonies.html
Clark M. Thomas presents a critical essay arguing against the viability and ethics of Mars colonization, countering popular arguments with Malthusian population theory and opportunity cost reasoning. The piece challenges billionaire-backed space colony fantasies by urging focus on Earth's existing ecological and humanitarian crises instead.
https://ve3xr.wordpress.com/
The Peel Amateur Radio Club (PARC) serves the ham radio community of Brampton and Caledon, Ontario, with resources covering repeaters, ARES emergency communications, nets, and special interest groups for HF, contesting, packet radio, and Morse code. Members can find meeting schedules, club bylaws, technical notes, and member projects, making it a well-rounded hub for local amateur radio operators.
http://cycloneroad.com/
Cyclone Road is the personal homepage of storm chaser Amos Magliocco, featuring chase reports, photos, a chase blog, and gear recommendations. The site includes a tribute to Eric Nguyen and links to essential storm chasing reading on safety, ethics, and tornado pursuit.
http://kc7nod.20m.com/index.htm
CW's radio page is a hobbyist resource dedicated to shortwave listening, featuring DIY projects and guides for devices like random wire antennas, static discharge units, ferrite couplers, and attenuators. The site offers practical technical content for SWL enthusiasts, including modification guides for receivers like the DX 390 and transformer builds.
https://amateurradio.com/
AmateurRadio.com is a long-running international hub for ham radio news, opinion, and technical discussion, celebrating over 29 years of service to the amateur radio community. Visitors will find podcast episodes, project write-ups on D-Star beacons and digital modes, equipment reviews, and community news covering topics from FT8 to MFJ Enterprises.