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://stormgasm.com/
Stormgasm is the storm chasing hub of Jim Bishop, Juston Drake, and Simon Brewer, featuring tornado videos, hurricane footage, supercell photography, and storm chase journals from across the Great Plains and beyond. Visitors can browse a stock footage library, explore photo galleries, and follow the team's active storm chasing adventures in real time.
![This Dynamic Earth--Contents [USGS]](/screenshots/15975.webp)
https://pubs.usgs.gov/gip/dynamic/dynamic.html
Published by the U.S. Geological Survey, this online edition of 'This Dynamic Earth' offers a comprehensive exploration of plate tectonics, from historical perspectives to modern understanding of mantle plumes and unanswered geoscientific questions. Written by W. Jacquelyne Kious and Robert I. Tilling, it covers the full text of the original 1996 print book and links to interactive companion resources including maps of volcanoes, earthquakes, and crustal movements.
http://scvrs.org/
The SCVRS (Santa Clarita Valley Repeater Society) WB6OQS page serves as the online home for an amateur radio repeater organization in the Santa Clarita Valley area. Visitors can find information about the club's repeater systems, frequencies, and amateur radio activities for the local ham radio community.
![start [NEKAAL]](/screenshots/37403.webp)
http://nekaal.org/doku.php
NEKAAL (Northeast Kansas Amateur Astronomers' League Inc.) is the official site for an astronomy club based in Northeast Kansas, home to the Farpoint Observatory. Visitors can find upcoming public astronomy nights, general meeting schedules, astro images, observer archives, and links to educational resources for amateur stargazers.
https://projectrho.com/starmap.html
Winchell Chung (aka Nyrath the nearly wise) maintains this ambitious 3-D starmap project dedicated to the golden age of science fiction and real astronomical data. Inspired by E.E. 'Doc' Smith's classic space operas, the site blends scientific accuracy with a deep love of the stars to create interactive three-dimensional maps of nearby stellar neighborhoods.
http://ham-radio.com/wa6cgr
Dave Glawson (WA6CGR) shares his extensive microwave radio projects, including transverters, amplifiers, and PLL systems published in Microwave Update and West Coast VHF/Microwave Conference proceedings. A valuable technical reference for hams interested in microwave experimentation, featuring contest reports from the ARRL 10 GHz and Up Contest and downloadable PDF articles.
https://excaliburmineral.com/meteorite.htm
Excalibur Mineral Corporation offers a detailed sales catalog of meteorites and tektites, listing specimens by name, find date, locality, weight, and price. The catalog includes rare pallasites, chondrites, and scientifically documented samples with SEM imagery and quantitative chemistry, making it a destination for serious collectors.
https://qsl.net/w4sat/antenna.htm
Antenna Elmer is a comprehensive ham radio antenna reference covering dipoles, folded dipoles, ground planes, beams, and vertical antennas for HF, VHF, and UHF frequencies. Visitors can design their own antennas using calculators and conversion tools, with guides covering coax efficiency, frequency scaling, and even a creative 'fan-tenna' built from a household fan.
https://mysterium.com/extinction.html
Created by David Ulansey, this long-running reference site compiles hundreds of links to authoritative scientific reports documenting the ongoing sixth mass extinction and global biodiversity crisis. Active since 1998 and last updated in 2021, it covers species loss across vertebrates, insects, plants, and freshwater animals, drawing on sources like the IUCN, UN, WWF, and major scientific journals.
https://darc.de/home
DARC (Deutscher Amateur-Radio-Club e.V.) is the official national organization for amateur radio operators in Germany, offering member services, licensing information, contest coordination, and club resources. With sections covering HF, VHF/UHF/SHF, emergency communications, DX, and youth training, it serves as a comprehensive hub for the German ham radio community.