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://aprs.net/
Steve Dimse's site introduces APRS (Automatic Position Reporting System), a ham radio-based network for transmitting GPS position reports, weather data, and messages, with an interactive Java applet showing live amateur radio operator positions in South Florida. The site showcases Steve's own contribution to APRS: the internet gateway software (javAPRS) that bridges local ham radio packets to the web for real-time map display.
https://stormdude.com/stormchasing/stormchasing.html
Stormdude is a personal storm chasing site documenting decades of adventures across the Great Plains in pursuit of supercells, with photo journals spanning from 1998 through 2027. The site features a main gallery, top chase days highlights, humor pages, and lists of other storm chasers, making it a rich archive for weather enthusiasts.
https://skokievalleyastronomers.org/
The Skokie Valley Astronomers was a beloved Illinois-based amateur astronomy club that ran for over 50 years, hosting public meetings, presentations, and events dedicated to stargazing and sky watching. The site serves as a farewell archive and resource hub, featuring newsletters, images, and links to other local astronomy clubs for members and enthusiasts to continue their passion.
https://qsl.net/jh3ybs/index_e.html
The JH3YBS Hyogo Scout Council Amateur Radio Club represents the official radio station of the Boy Scouts Hyogo Council in Japan, supporting amateur radio activities within scouting. The site outlines club activities including JOTA (Jamboree on the Air), TDOTA, overseas jamborees, contests, and equipment details, making it a valuable hub for scout radio enthusiasts.
http://james.ahlstrom.name/pcr1000
James Ahlstrom shares his Python-based control software for the Icom PCR-1000 wideband radio receiver, covering the full 100 kHz to 1.3 GHz tuning range. The page includes setup instructions for Windows and Linux, download links for dependencies like pyserial and pywin32, and a practical explanation of how PC-controlled radio software works.
http://mndmr.net/
MNDMR.net is the home of Minnesota's first in-house DMR repeater CBRIDGE network, providing information about connected repeaters, talkgroups, and codeplugs for digital radio users in the region. The site serves the local amateur radio community with resources for the MNSTATE and MNTAC talkgroups on the Brandmeister network.
https://qsl.net/scra
Stony Creek Amateur Radio (NC4FM) is a tax-exempt ham radio club based in Rocky Mount, North Carolina, founded in 2000 to mentor new operators, provide emergency communications, and participate in ARRL contests. The site covers repeater information, Field Day events, license testing, and local amateur radio organizations across the region.
https://swling.com/blog/2026/03/shelfmarks-and-shortwave
The SWLing Post is a dedicated blog covering shortwave listening, ham radio, DXing, SDR technology, and radio broadcasting from around the world. With reviews, program schedules, equipment guides, and community contributions, it's a rich hub for radio enthusiasts of all stripes.
https://illinoiswildflowers.info/
Created by Dr. John Hilty, Illinois Wildflowers is a comprehensive botanical reference covering prairie, woodland, wetland, savanna, and weedy wildflowers native to Illinois, complete with plant-feeding and flower-visiting insect databases. The site's depth is remarkable, extending beyond flora to include vertebrate animal interactions, botanical and ecological terminology, and detailed photo documentation built over nearly two decades.
https://rochesterskies.org/
The Rochester Astronomy Club is a 501(c)(3) non-profit based in Rochester, Minnesota, offering public night sky viewing events, member resources, and a club forum for amateur astronomers. The site features observing reports, event calendars, member blogs covering topics like Titan shadow transits and comet sightings, and outreach activities at local community events.