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://vijfsnippervijf.neocities.org/
Vijfsnippervijf's personal corner of the web showcases a wide range of creative works including original music, visual art, short stories, and opinion pieces, with a dedicated section on ham and amateur radio. The site also features Linux Mint content, Last.fm music integration, a dev log, and a guestbook, making it a lively and eclectic personal hub.
https://ik3qar.it/rtty/1
IK3QAR's technical page covers RTTY digital radio operation, focusing on FSK and AFSK interface circuits with detailed wiring diagrams for connecting a PC soundcard to a transceiver. The site addresses practical problems like ground loop interference and signal reentry, offering schematics and tips for rigs including the Kenwood TS940.
https://sarts.org.sg/
The Singapore Amateur Radio Transmitting Society (SARTS) is the national organization for ham radio enthusiasts in Singapore, offering resources on licensing, frequency bands, and getting started with amateur radio. The site features news posts on topics like FreeDV signals, web SDRs, and satellite launches, along with a marketplace, gallery, and membership information for the local ham community.
https://qsl.net/qarg
The Quincy Area Repeater Group (QARG) was a club of licensed amateur radio operators in West Central Illinois who established and maintained the 147.195MHz 2M repeater serving the Quincy, Illinois and North Eastern Missouri area. The site serves as a historical record of the group's 18-year operation before transferring control to the Western Illinois Amateur Radio Club, including a full list of charter members and their callsigns.
https://qsl.net/nogaqrp
The NOGA QRP Club is an amateur radio club focused on low-power (QRP) radio operation, Morse code (CW), and kit building and construction. This page serves as a redirect to the club's new home at nogaqrp.org, with meta keywords hinting at a community centered around QRP kits like the Pixie transceiver.
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://background.uchicago.edu/~whu
Wayne Hu is a Professor of Astronomy and Astrophysics at the University of Chicago, and this site serves as his academic hub covering cosmology research including CMB polarization, baryon acoustic oscillations, cosmic shear, and large-scale structure. Visitors will find an impressive collection of tutorials, lecture notes, research codes, publications, and course materials spanning decades of work in theoretical cosmology.
https://sostrata.neocities.org/sostratapersonal
Elia Rowan's personal site is a rich mix of worldbuilding and space enthusiasm, featuring original fictional universes, a Kerbal Space Program journal, and a playful page about Venus alongside creative writing projects. The site has a distinctly old-web feel with hundreds of collected blinkies, stamps, and web badges alongside deep speculative content about the structure of imagined cosmologies.
http://aberdeenastro.org.uk/
The Aberdeen Astronomical Society (AAS) is a Scottish astronomy club based in Aberdeenshire, hosting regular meetings, dark sky observing sessions, and public talks both in person and via Zoom. The site features aurora photography by members, an interactive star chart for Aberdeen, upcoming event listings, and a night sky section covering visible astronomical events from the local area.
http://circuitsage.com/newroutine.html
Circuit Sage offers free design routines and tools for analog and RF circuit engineers, covering topics like PLL design, LNA/PA design, impedance matching, bandgap references, and transmission lines. The site provides Mathcad-based calculation routines that serve as practical references for IC and wireless circuit design work.