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://stellafane.org/
Stellafane is the historic home of the Springfield Telescope Makers of Vermont, hosting one of the oldest and most celebrated amateur telescope making conventions in the world. The site offers comprehensive guides on building Dobsonian telescopes and grinding mirrors, a rich archive of convention history, an astrophoto gallery, and resources for beginners getting started in amateur astronomy.
https://targetarea.net/
Scott Blair's personal site, active since 1997, focuses on storm chasing and severe weather photography, featuring copyrighted images of tornadoes and violent storms captured in the field. The site also honors Eric Nguyen, a fellow storm observer and meteorologist, with a link to a memorial scholarship supporting future weather scientists.
https://kernastro.org/
The Kern County Astronomical Society (KCAS) is a Bakersfield, California astronomy club founded in 1956 with a mission to foster interest in astronomy among members and the general public. The site offers information on star parties, meetings, membership, and a photo gallery featuring events like the Dark Skies Festival and visits to Mount Wilson Observatory.
https://mrasz.hu/
The Magyar Rádióamatőr Szövetség (MRASZ) is the official national amateur radio society of Hungary, organizing contests, events, and news across shortwave, UHF, radio direction finding, and high-speed telegraphy disciplines. The site features competition announcements, a QSL bureau, licensing information from the NMHH authority, and resources for Hungarian radio amateurs at all levels.
http://rfinq.com/
RF Inquiry Inc. is a Japanese company specializing in amateur and professional radio equipment, selling filters for RFI interference suppression, antennas from brands like OptiBeam and OM Power, and accessories for HF, VHF, and UHF operation. The site serves ham radio operators with a product catalog including bandpass filters, baluns, linear amplifiers, and noise reduction gear from well-known manufacturers.
https://content.lib.washington.edu/fishweb
The Freshwater and Marine Image Bank is a University of Washington Libraries digital archive containing over 16,000 historic images of fish, shellfish, marine mammals, fisheries, and aquatic subjects drawn from publications spanning 1735 to 1924. Visitors can browse richly hand-colored illustrations and photographs organized into categories ranging from limnology and aquatic botany to polar exploration and traditional fisheries from around the globe.
https://tornadobob.com/
Bob Conzemius documents his storm chasing and aurora hunting adventures on this personal site, which includes dedicated sections for aurora chases, storm chases, and weather research. The dual focus on severe weather and Northern Lights photography makes it a unique destination for weather enthusiasts and aurora chasers alike.
http://icarc.org/
The Iowa City Amateur Radio Club (ICARC) serves ham radio enthusiasts in the Iowa City and Coralville area, offering resources on local repeaters, HF nets, fox hunts, and emergency operations. Visitors can find Field Day information, a Hall of Fame, WSPR presentations, and links to callsign lookups and real-time solar-terrestrial data.
http://oscarmn.org/
The Owatonna Steele County Amateur Radio club (OSCAR) serves ham radio enthusiasts in Owatonna, Minnesota, with resources including repeater info, EchoLink access, a club store, and emergency service coordination. The site lists club officers, monthly meeting details, licensing classes, and links to ARRL, SKYWARN, and local emergency management organizations.
https://f1rum.fr/
F1RUM's blog is a French amateur radio enthusiast's personal journal covering topics like Meshtastic mesh networking, Morse code learning challenges, SOTA field operations, SDR hardware, and digital modes like MFSK. The site also includes a logbook and digimap, and participates in the Fediverse.Radio web ring, making it a genuine hub for the radioamateur community.