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://www-k12.atmos.washington.edu/k12/grayskies
Hosted by the University of Washington's Atmospheric Sciences department, GRAYSKIES is an educational resource focused on Earth's atmosphere, offering climate data, rooftop weather observations, and curated links to Pacific Northwest weather and climate tools. Visitors can explore 30-year climate averages, satellite imagery, and data plotting tools alongside a broad collection of regional and national weather resources.
https://diptera.info/weblinks.php?cat_id=1
Diptera.info is a comprehensive portal dedicated to the insect order Diptera, covering flies, midges, and gnats with galleries, checklists, catalogues, and an active identification forum for researchers and enthusiasts worldwide. With over 5,000 members, a larva gallery, downloadable articles, and curated web links to scientific collections and catalogues, it serves as a serious reference hub for dipterists at all levels.
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://qrparci.org/
QRP ARCI is the QRP Amateur Radio Club International, a 16,000-member organization dedicated to low-power ham radio operating and homebrewing. The site hosts contest schedules, a Hall of Fame, links to kits and supplies, and the full contents of their quarterly magazine featuring technical articles by prominent QRP operators.
http://scarc.com/
SCARC appears to be the website for an amateur radio club, offering resources and information for ham radio enthusiasts in its region. Club-based amateur radio sites like this typically feature member info, repeater details, licensing resources, and local on-air event announcements.
https://barc.org/
The Boston Amateur Radio Club (BARC) connects ham radio enthusiasts across the Greater Boston area, offering repeater access, club meetings, licensing exam sessions, and public service events. The site includes field day archives dating back to 2000, repeater guides, a club newsletter, and resources for both new and experienced operators.
https://macastro.org.au/
The Macarthur Astronomical Society serves amateur astronomers in Sydney's south west, offering field nights at multiple observation sites, astro imaging workshops, citizen science projects, and a Deep Space Hunt program. With resources like the Messier and Caldwell lists, ISS tracking, sky conditions, and a 2028 Solar Eclipse planning page, this is a well-rounded hub for a genuinely active local astronomy club.
https://qsl.net/wa5mc
The Atchafalaya Amateur DX Association Inc. (AADXA) is a ham radio club based in Amelia, Louisiana, with a full organizational presence including officer listings, membership applications, meeting minutes, newsletters, and repeater information. Developed by Guy R. Morrison (WA5MC), the site also features field day photos, a guestbook, and club constitution documents, making it a solid hub for local amateur radio enthusiasts.
https://livermoreark.org/
The Livermore Amateur Radio Klub (LARK) is a nonprofit club founded in 1959 serving the Tri-Valley area of California, affiliated with the ARRL and open to both licensed and unlicensed members. The site covers club membership, FCC licensing and testing sessions, net schedules, newsletters, and emergency communications support for local cycling events.
http://science-workshop.com/
Science Workshop appears to be a science-oriented site, though its content is extremely minimal with only a single image visible at crawl time. The domain name suggests a focus on science education or hands-on scientific topics, but without further content the site's exact subject remains uncertain.