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://gars.org.gg/
The Guernsey Amateur Radio Society (GARS) is a ham radio club based in the Channel Islands, meeting Friday evenings in a genuine World War II bunker at Beau Sejour Leisure Centre. The site offers a GU callbook, repeater information, QSL card bureau details, and membership resources for both local hams and visiting operators.
https://front.emilkirkegaard.dk/
Emil O. W. Kirkegaard is a quantitatively minded researcher whose personal site serves as a hub for his extensive academic publications covering psychometrics, intelligence research, behavioral genetics, and population studies. The site lists dozens of peer-reviewed papers published in journals like Comparative Sociology and OpenPsych, alongside links to his English and Danish blogs and YouTube channel.
https://atmos.uw.edu/marka/ca.normals.html
Hosted on the University of Washington's atmospheric sciences domain, this page presents California's observed climate normals for the 1971-2000 period, including mean monthly precipitation and daily maximum and minimum temperatures. Visitors can click on map markers to explore station-level climate data across the state, making it a handy reference for researchers, students, and weather enthusiasts.
http://w7zoi.net/
The personal site of Wes Hayward (W7ZOI), a well-known amateur radio engineer and co-author of 'Experimental Methods in RF Design' (EMRFD), featuring technical articles, filter design resources, errata, and glimpses of his ham shack. A rich destination for radio homebrewers and RF enthusiasts, with bonus content covering mountain hikes that incorporated amateur radio operation.
https://hamradiouniversity.org/
Ham Radio University is an annual free educational event held on Long Island, New York, now in its 28th year, dedicated to spreading amateur radio knowledge through forums, presentations, and fellowship. The site serves as the official hub for event registration, past presentation archives, moderator bios, and news about upcoming HRU gatherings organized by the amateur radio community.
https://home.adelphi.edu/~stemkoski/mathematrix/index.html
Mathematrix, created by Lee Stemkoski at Adelphi University, explores the playful and lesser-known side of mathematics through topics like polyominoes, Rubik's Cube, fractals, Conway's Game of Life, and higher dimensions. Accessible to curious minds at any level, the site blends mathematical art, humor, poetry, and hands-on puzzles to make recreational math genuinely entertaining.
https://asteroidoccultation.com/
Steve Preston's long-running resource provides predictions for asteroid occultation events, listing when asteroids will pass in front of stars as seen from Earth. Covering upcoming events through 2026 with supplementary observation guides and FAQs, it serves as a reference for amateur and professional astronomers tracking these brief but scientifically valuable phenomena.
https://1728.org/magntude.htm
A focused online calculator for computing astronomical magnitudes, covering apparent magnitude, absolute magnitude, and stellar luminosity with worked examples using real celestial objects like the Sun, Moon, and Sirius. The tool walks visitors through the underlying math of the magnitude scale, making it a handy reference for astronomy students and hobbyists alike.
https://mkas.org.uk/
The Milton Keynes Astronomical Society (MKAS) has been bringing together stargazers in the UK since 1972, offering public observing sessions, fortnightly lectures, astrophotography workshops, and youth programs. Their site features an astro calendar, photo gallery, equipment hire, observing aids, and a live aurora forecast, making it a practical hub for both beginners and experienced astronomers in the region.
https://wallcloudchaser.com/
WallCloudChaser.com is the personal site of Minnesota storm chaser Jarrod Schoenecker, featuring dramatic tornado photography, weather videos, and documentation of severe weather events like the 2019 Biscay-Silver Lake EF-1 tornado. Visitors will find a weather library, equipment lists, CoCoRaHS participation, and photography-for-hire services rooted in Jarrod's passion for chasing severe Midwest weather.