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://www.stormchase.us/
Matt Ver Steeg of WeatherEdge, Inc. documents his storm chasing adventures across Iowa and tornado alley, offering a photo gallery, tornado pictures, weather research, and live weather data tools. Packed with radar links, satellite imagery, severe weather outlooks, and personal field reports, this site is a solid resource for both hobbyist storm chasers and weather enthusiasts.
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://w1cdn.net/
W1CDN documents ham radio adventures with hands-on technical posts covering packet radio, homebrew builds, APRS digipeaters, and radio orienteering projects. The site features detailed notes on software configurations like direwolf and flrig, DIY hardware builds including a powered speaker and homebrew power meter, and practical guides for operating on various bands.
http://w9az.com/
The Kankakee Area Radio Society (KARS) is an Illinois-based amateur radio club dedicated to promoting and advancing ham radio in the Kankakee region. The site features member resources including meeting schedules, repeater information, fox hunt events, archived newsletters, and a membership application.
https://www.qsl.net/w1aa/w1aa_1001.htm
Documenting the 2003 Marconi 100th Anniversary Special Event station operated by the Marconi Radio Club (W1AA) and the Marconi Cape Cod Memorial Radio Club (KM1CC) near the historic Cape Cod transmission site, this site captures a milestone commemoration that logged over 13,000 contacts worldwide. Highlights include a rare contact with the International Space Station and a presidential commemorative message from George W. Bush, making it a fascinating record of amateur radio history in action.
https://n5yk.tripod.com/
Randy Ashley (callsign N5YK) shares his personal homepage centered on amateur ham radio, with interests in contesting, 6 meter band, DXing, and RTTY operating from McAllen, Texas. The site also touches on his secondary hobbies of scuba diving and Dutch oven cooking, with links to local Rio Grande Valley ham radio clubs and related resources.
https://meteor.iastate.edu/~jdduda/chasing/chasing.html
Jeff Duda's storm chasing log spans a decade of tornado pursuits across the Great Plains and Midwest, with lifetime stats including 71 tornadoes witnessed across 111 total chases and over 52,000 miles driven. Each year links to detailed chase accounts, making it a compelling personal record of one dedicated chaser's adventures in severe weather.
http://smallwonderqrp.blogspot.com/
K.P.S. Kang's blog dedicated to QRP (low-power) radio building, featuring homebrew transceiver projects, circuit schematics, and PCB layouts for minimalist radio construction. Posts cover topics like speech processors, SSB transceivers, and the FIREO low-power transceiver design, making it a useful resource for amateur radio homebrewers.
http://ned.ipac.caltech.edu/help/cosmology_calc.html
Hosted by NASA's Extragalactic Database (NED) at Caltech, this curated page collects links to online cosmology calculators contributed by researchers at UCLA, University of Colorado, and other institutions. Visitors can compute distances, lookback times, Hubble parameters, K-corrections, and other key cosmological quantities by entering values like redshift, Hubble constant, and Omega parameters.
http://habitat.org.uk/news1.htm
Wharfe Conserv@tion is a monthly review of wildlife conservation news in Britain, covering topics from GM crops and endangered butterflies to otters, wildflowers, and Scottish ecosystems. The site features a science section, conservation headlines organized across multiple pages, book reviews, and links to wildlife resources, making it a rich hub for UK nature enthusiasts.