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.qsl.net/w5gfc
The W5GFC Greers Ferry Amateur Radio Club serves ham radio enthusiasts in the Ozark foothills of Arkansas, offering club news, repeater listings, VE exam info, QSL cards, and a photo album. Founded in the 1970s, this active club also coordinates emergency communications and hosts a weekly net on 147.330+.
https://amateurradio.com/
AmateurRadio.com is a long-running international hub for ham radio news, opinion, and technical discussion, celebrating over 29 years of service to the amateur radio community. Visitors will find podcast episodes, project write-ups on D-Star beacons and digital modes, equipment reviews, and community news covering topics from FT8 to MFJ Enterprises.
http://nsradio.org/
The North Shore Radio Association (NSRA) serves amateur radio operators in the Peabody and Danvers, Massachusetts area, coordinating weekly club nets on the 145.470MHz repeater and organizing VE licensing exam sessions. The site provides members with information on club meetings, ARES/Skywarn emergency communications, DMR digital radio, and public service activities.
https://pi4cc.nl/
PI4CC Contest Club is a Dutch amateur radio club operating from a World War II bunker at Hoek van Holland since 1993, specializing in HF multi-operator contest entries. The site offers a detailed station tour, antenna specifications, contest stories, DX-trip logs, and member information for this technically impressive homebrew contest station.
http://bbastrodesigns.com/
Mel Bartels runs this personal hub covering amateur telescope making alongside his BBAstroDesigns venture and beekeeping with top bar hives. The site blends hands-on astronomical craftsmanship with natural observations like ice spikes, sun rainbows, and sun pillars.
http://butikov.faculty.ifmo.ru/Projects/Collection.html
Created by physicist E. Butikov of IFMO, this collection presents interactive Java applets simulating remarkable three-body gravitational motion problems, including the famous figure-eight periodic orbit and restricted three-body scenarios. It bridges classical Newtonian mechanics and celestial mechanics with hands-on simulations suitable for students and advanced researchers exploring planetary system dynamics.
http://ve7sl.blogspot.com/
VE7SL is Steve's amateur radio blog chronicling his homebrewing projects and on-air adventures across an extraordinary range of frequencies, from 2200 meters all the way up to nanowaves. Posts dive deep into technical details like antenna construction, low-band operating on 630m, and solar propagation data, making it a rich resource for experimentally-minded hams.
https://barc.org/
The Boston Amateur Radio Club (BARC) connects ham radio enthusiasts across the Greater Boston area, offering repeater access, club meetings, licensing exam sessions, and public service events. The site includes field day archives dating back to 2000, repeater guides, a club newsletter, and resources for both new and experienced operators.
https://dominiccook.xyz/
Dominic Cook's personal site collects his explorations in mathematics, number theory, measure theory, and speculative metaphysics alongside creative web projects like 88x31 webpins, glitch art, and calculators. The mix of rigorous mathematical writing and old-web aesthetics makes it a quirky, intellectually curious corner of the indie web.
https://w6ze.org/
The Orange County Amateur Radio Club (OCARC) has been serving Southern California ham radio enthusiasts since 1934, making it one of the longest-running ARRL-affiliated clubs in the region. Visitors will find meeting schedules, club nets, emergency communications info, a newsletter archive, VE testing sessions, and resources covering everything from satellite communications to digital modes like FT8 and D-STAR.