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://sky-chaser.com/
Christopher Collura's Sky-Chaser site chronicles his adventures as a SKYWARN storm spotter and hurricane chaser, with tropical weather tracking, storm documentation, and real-time links to NHC and JTWC data. Beyond extreme weather journalism, the site covers his many pursuits including skydiving, HAM radio, photography, computer programming, and aerobatics.
http://casswww.ucsd.edu/archive/public/tutorial/History.html
Gene Smith of UC San Diego's Center for Astrophysics and Space Sciences presents a detailed tutorial on the history of astronomy, tracing human observation of the skies from Stonehenge and ancient agrarian cultures through Pythagoras, Aristotle, Aristarchus, Copernicus, Kepler, and Galileo. Rich with links to related topics like archaeoastronomy, eclipse prediction, and the Music of the Spheres, this page is part of a broader astronomy education series hosted by UCSD.
https://planetmath.org/
PlanetMath.org is a collaboratively built mathematics encyclopedia where community members write and review entries covering a vast range of mathematical topics, all rendered in LaTeX. Hosted by the University of Waterloo and operated as a nonprofit, it offers both a subject index and alphabetical index, making it a serious reference hub for students, educators, and math enthusiasts.
https://mistal2.tripod.com/CAS
The Cumberland Astronomical Society is an amateur astronomy club based in Gallatin, Tennessee, dedicated to bringing astronomy to the general public. The club hosts monthly events at local schools, libraries, and parks, though this Tripod page now redirects visitors to their updated website at CumberlandAstronomicalSociety.org.
https://qsl.net/cemarc
CEMARC (Council of Eastern Massachusetts Amateur Radio Clubs) is the ARRL-affiliated umbrella organization representing the ham radio community across Eastern Massachusetts, with delegate clubs meeting quarterly to coordinate activities. The site covers club member interests, on-air nets, Field Day information, local club listings, and the council's history dating back to its founding memo.
https://qsl.net/hdxa
The Heartland DX Association is a ham radio club based in the heartland region, serving as the sponsor of the Nebraska QSO Party contest. This redirect page points visitors to their new website, offering a glimpse into the club's focus on DX operating and amateur radio contesting.
https://dominiccook.xyz/
Dominic Cook's personal site collects his explorations in mathematics, number theory, measure theory, and speculative metaphysics alongside creative web projects like 88x31 webpins, glitch art, and calculators. The mix of rigorous mathematical writing and old-web aesthetics makes it a quirky, intellectually curious corner of the indie web.
http://jap.hu/electronic/rf.html
Peter's RF schematics page is a technical reference collection of radio frequency circuit diagrams spanning receivers, transmitters, and transceivers across a wide range of frequencies from 27MHz to 1GHz. Hobbyists and engineers will find schematics for superregenerative receivers, FM audio transmitters, walkie-talkies, SAW-based designs, and datasheets for chips from major manufacturers like Silicon Labs, HopeRF, and Texas Instruments.
https://starinabox.net/
Star in a Box is an interactive educational tool from Las Cumbres Observatory that lets you animate and explore the full lifecycle of stars across a range of solar masses using the famous Hertzsprung-Russell diagram. Visitors can watch how a star's brightness, size, surface temperature, and mass evolve over billions of years, with downloadable data tables for independent investigation.
http://stormchaser.ca/Stormchaser.html
George Kourounis is a globe-trotting storm chaser, explorer, and TV presenter whose site showcases breathtaking photographs and videos of tornadoes, hurricanes, volcanoes, lightning, and other extreme natural phenomena from all 7 continents. Best known for hosting the 'Angry Planet' TV series broadcast in over 100 countries, his online home is a stunning archive of close encounters with Earth's most violent forces.