Science & Nature
1413 sites
Subcategories:
- Astronomy & Space (390)
- Chemistry (7)
- Earth Sciences (24)
- Biology (76)
- Physics (29)
- Mathematics (51)
- Weather & Climate (100)
- Amateur Radio (681)
- Electronics (45)
http://members.chello.at/natura/shrew/index.html
Created by Werner Haberl, this scholarly hub is dedicated entirely to the biology of shrews (Soricidae), featuring a bibliography, photo gallery, newsletter, congress announcements, and a forum for zoologists worldwide. Awarded 'Coolest Science Site' in 1996 and mentioned in BBC Wildlife Magazine and Encyclopedia Britannica Online, it remains a remarkably deep and specialized resource for both researchers and curious naturalists.
http://kc7nod.20m.com/index.htm
CW's radio page is a hobbyist resource dedicated to shortwave listening, featuring DIY projects and guides for devices like random wire antennas, static discharge units, ferrite couplers, and attenuators. The site offers practical technical content for SWL enthusiasts, including modification guides for receivers like the DX 390 and transformer builds.
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://astropix.com/
Jerry Lodriguss has spent nearly 50 years photographing the night sky, and AstroPix collects his expertise into a comprehensive resource covering everything from smartphone star trails to deep-sky nebulas and total solar eclipses. Visitors will find equipment reviews, image processing tutorials, observing guides, and stunning astrophotos of planets, comets, galaxies, and celestial events spanning decades of film and digital work.
https://felderbooks.com/papers/godel.html
Kenny Felder offers a thorough and accessible explanation of Gödel's Incompleteness Theorem, drawing heavily on Hofstadter's 'Gödel, Escher, Bach' to walk readers through the mathematics and philosophy behind one of the most profound results in logic. Written in 1996, the piece explores formal axiomatic systems, Russell and Whitehead's Principia Mathematica, and the far-reaching implications of Gödel's work for mathematics, artificial intelligence, and the nature of mind.
http://qrotec.com/
Ray Connin (KB8VU) runs QRO Technologies out of Bryan, Ohio, a site dedicated to amateur radio and high-power RF amplifier technology. The page is associated with a long-running operation dating back to 1996, suggesting deep involvement in the ham radio community.
https://tornadobob.com/
Bob Conzemius documents his storm chasing and aurora hunting adventures on this personal site, which includes dedicated sections for aurora chases, storm chases, and weather research. The dual focus on severe weather and Northern Lights photography makes it a unique destination for weather enthusiasts and aurora chasers alike.
https://mainearrl.org/
The official Maine Section page for the American Radio Relay League covers everything local hams need, including district info, repeater listings, emergency communications nets, and an upcoming hamfest convention in Augusta. Resources for mentors (Elmers), club listings, EMCOMM testing, and multiple nets like the Maine Seagull Net and Maine Public Service Net make this a practical hub for amateur radio operators across the state.
https://physlink.com/
Founded in 1995 by physicist Anton Skorucak, PhysLink.com is a comprehensive online portal covering physics and astronomy through reference materials, expert Q&A, physical constants, calculators, and educational articles. Visitors can explore everything from quantum mechanics and general relativity to astronomy news, Nobel Prize info, and even physics humor and cartoons.
https://ng3k.com/
Bill Feidt (NG3K) has built a comprehensive amateur radio resource focused on DX operations and contesting, featuring the Announced DX Operations (ADXO) database, DXCC entity tables, packet cluster resources, and propagation forecasts. With archives stretching back to the mid-1990s and regularly updated links to DX tools, contest calendars, and reverse beacon networks, this site is a go-to reference for serious DX and contest operators.