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)
http://nu5de.org/
The Naturist Amateur Radio Club (NU5DE) is a unique ham radio club that operates from Star Ranch Nudist Resort in McDade, Texas, combining nude recreation with amateur radio operations. The site showcases their custom QSL cards, including their award-winning 'barefoot' design, and documents their on-air activities during Nude Recreation Week from 2001 onward.
https://hamfest.org/
The Huntsville Hamfest is one of the longest-running amateur radio events in the United States, held annually since 1954 at the Von Braun Center in Huntsville, Alabama. In 2026 it will host the ARRL National Convention, featuring a dealer show, flea market, forums, licensing opportunities, and activities for the whole family.
https://westernsoundscape.org/
Housed at the University of Utah's J. Willard Marriott Library, the Western Soundscape Archive offers thousands of audio recordings of animal species and ambient environments across eleven western U.S. states and the Arctic National Wildlife Refuge. Visitors can search or browse recordings of over 570 bird species, frogs, toads, reptiles, mammals, and wild landscape soundscapes contributed by volunteers, government agencies, and conservation groups.
https://swling.com/blog
The SWLing Post is a richly detailed blog dedicated to shortwave listening, ham radio, DXing, and all things radio, run by Thomas and a community of contributors. Visitors will find equipment reviews, broadcast schedules, numbers station reports, SDR guides, and news spanning pirate radio to vintage receivers.
https://wt4ra.org/
The Western Tidewater Radio Association (WTRA) is an ARRL-affiliated amateur radio club serving Isle of Wight, Surry, and Southampton Counties in Virginia. The site lists upcoming events like QSO parties, flea markets, and Field Day, plus club resources including repeater info, ARES emergency communications, membership rosters, and weather service links.
http://dibonsmith.com/graphics.htm
Created by Richard Dibon-Smith, this site provides graphics and reference information for all 88 officially recognized constellations, from Andromeda to Vulpecula. Each constellation gets its own dedicated page, making it a handy visual reference for amateur astronomers and sky-watchers.
https://targetarea.net/
Scott Blair's personal site, active since 1997, focuses on storm chasing and severe weather photography, featuring copyrighted images of tornadoes and violent storms captured in the field. The site also honors Eric Nguyen, a fellow storm observer and meteorologist, with a link to a memorial scholarship supporting future weather scientists.
https://k5sld.org/
The Arlington Amateur Radio Club (K5SLD) is a community club based in Arlington, Texas, offering weekly nets on their 2-meter repeater, club dinners, licensing resources, and membership information. The site serves as the central hub for local ham radio operators to stay connected, pay dues, and participate in club events including CERT emergency response training.
http://elasmo.com/
Elasmo.com is a detailed reference site covering the teeth of both extinct and living elasmobranchs, the group that includes sharks and rays. Fossil enthusiasts and paleontology hobbyists will find specialized information on elasmobranch dental morphology, with a focus on Neogene-era specimens from sites like Lee Creek.
https://muircom.com/6meters.htm
A reference page by Alan Muir (VE7BEU) documenting 6-meter amateur radio frequencies in the 50-54 MHz band, including repeater pairs used in British Columbia and Washington State. It covers transmitter offsets and CTCSS tones, compiled on behalf of the Westcoast Amateur Radio Association in Victoria for submission to the BC Amateur Radio Coordination Council.