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://particleadventure.org/
The Particle Adventure is an award-winning interactive guide to particle physics from the Particle Data Group at Lawrence Berkeley National Laboratory, covering quarks, neutrinos, the Higgs boson, dark matter, antimatter, and particle accelerators. Available in over a dozen languages and designed for students and curious minds alike, it offers classroom activities, particle history charts, and deep dives into the fundamental building blocks of the universe.
http://citynight.com/camera
Robert W. Swan's pioneering live telerobotic internet camera, mounted atop an antenna tower at Amateur Radio Station WA6ZJG in Alameda, California, has been running continuously since June 1995. Visitors can remotely aim the camera left or right and watch live street-level views of the San Francisco Bay Area, making it one of the earliest publicly controllable webcams on the internet.
http://dimensions-math.org/Dim_E.htm
Dimensions is a freely available two-hour mathematical film by Jos Leys, Étienne Ghys, and Aurélien Alvarez that guides viewers through nine chapters building up to the concept of the fourth dimension. Released under a Creative Commons license, it offers commentary and subtitles in over a dozen languages, making advanced mathematical visualization accessible to a global audience.
https://www.qsl.net/kb1bot/index.html
The Connecticut DX Association (CTDXA) is a ham radio club founded in 1983 dedicated to long-distance international amateur radio contacts, known as DXing. The site includes member listings, meeting details at ARRL Headquarters in Newington CT, award information, and links to DX bulletins and DXpedition resources.
https://erau.ee/et
The Estonian Amateur Radio Union (ERAÜ) is the official national organization for ham radio operators in Estonia, a member of IARU since 1938. The site offers extensive resources including contest calendars, repeater and beacon info, exam guidance, QSL services, SDR links, and club directories, all available in Estonian and English.
http://nightskylive.net/sd
NightSkyLive appears to be a live sky or astronomy viewing resource, likely offering real-time or streaming views of the night sky. The domain and subdirectory suggest a science-focused project aimed at stargazers and astronomy enthusiasts.
https://www.qsl.net/lcarc
The Logan County Amateur Radio Club (LCARC) serves ham radio enthusiasts in Logan, West Virginia, about 60 miles south of Charleston. The site provides information on club repeaters, meeting details, membership applications, and archives for this reviving local radio club.
http://bluemoon.net/~tgpauly
Tom's personal page, run by ham radio operator KB2DQ, centers on amateur radio and the Western District Net. A great find for ham radio enthusiasts interested in net operations and the community around them.
https://frrl.org/
The Fox River Radio League (FRRL) is a century-old amateur radio club based in the Fox Valley area of Illinois, offering meetings, license testing, repeaters, and Field Day events to radio enthusiasts. With over 100 years of history and a congressional record entry marking its anniversary, this club site serves as a hub for both seasoned operators and newcomers seeking licensing exams and community.
https://cadxa.org/
The Central Arizona DX Association (CADXA) is a ham radio club founded in 1974 and based in Arizona, boasting over 100 members many of whom hold ARRL DXCC Honor Roll status. The site offers resources for DXers including QSL card checking, a DX calendar, contest calendars, club rosters, and information on joining one of the largest amateur radio DX clubs in the state.