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://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://pgadey.ca/
Parker Adey is a math lecturer at the University of Toronto Scarborough who shares formal notes, informal blog posts, reading recommendations, and teaching materials spanning topology, linear algebra, and beyond. The site doubles as an academic hub with a CV, publications list, office webcam, and a decade of evolution captured in the Wayback Machine.
https://www.qsl.net/ecara
ECARA appears to be an amateur radio club or organization hosted on QSL.net, the well-known hosting platform dedicated to ham radio operators and groups. The directory index suggests a collection of club files and resources, likely including meeting info, member details, or radio-related documents.
https://elm-chan.org/
ChaN's personal electronics engineering site showcases hobby projects, technical notes, and software tools shared with enthusiasts worldwide, including the widely-used FatFs filesystem module for embedded systems. The site blends circuit designs, fluorescent lamp ballasts, and downloadable code under a Creative Commons license, making it a genuine resource for hardware hobbyists.
https://feis-crs.org/feis
The Fire Effects Information System (FEIS) is a U.S. Forest Service database providing detailed scientific syntheses on fire ecology, fire regimes, and the effects of fire on plant and animal species across the United States. Visitors can explore species profiles, vegetation crosswalks, tree distribution maps, and research publications covering ecosystems from ponderosa pine forests to Sonoran desert scrub communities.
https://midwesternstormtrackers.net/
Midwestern Storm Trackers (MST) is a group dedicated to real-time storm chasing, severe weather reporting, and community weather awareness across the Midwest US. The site features team profiles, chase vehicles, a gallery, videos, and a browse-chases section for following their storm tracking activities.
https://n1nc.org/
The Nashoba Valley Amateur Radio Club (N1NC) serves ham radio enthusiasts in north central Massachusetts, coordinating events like Field Day, public service communications for the Groton Road Race, and ARES emergency nets. The site features a newsletter archive, officer listings, meeting info, and regular updates on club activities and regional ARES/RACES nets.
http://hawastsoc.org/
The Hawaiian Astronomical Society, founded in 1949, is a non-profit club dedicated to promoting amateur astronomy across the Hawaiian Islands, hosting regular public and members-only star parties at locations like Dillingham Airfield, Kahala Community Park, and Geiger Community Park. The site features event schedules, a deep-sky atlas, an astronomy newsletter, school star party programs, and live solar and lunar data feeds.
https://thunder.fanfreak.net/
A fanlisting dedicated to thunderstorms, inviting fans from around the world to add their name to a growing list of fellow storm enthusiasts. With 59 members and running since 2011, it is part of the TheFanlistings.org network and uses the Listing Admin Robotess Fork script.
https://skip.cc/chase
Skip Talbot has documented over 458 storm chases since 2003, logging 288,186 miles and 156 tornado intercepts across more than two decades of pursuit. The site features yearly chase logs, a gallery, time-lapse videos, and detailed statistics that make it a fascinating firsthand record of storm chasing as a serious hobby.