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://users.rcn.com/rmacedo
Robert Macedo's homepage covers emergency communications in Eastern Massachusetts, with a focus on ARES, RACES, and SKYWARN activities including severe weather activation reports dating back to 1997. The site documents real storm events like nor'easters, tropical storms, and severe weather outbreaks alongside training drills, NWS Taunton SKYWARN program info, and links to ham radio and weather resources nationwide.
https://qsl.net/w6ddx
The High Desert DX Association (HIDEXA) is an amateur radio club based in the High Mojave Desert of California, dedicated to DX (long-distance) radio communication. This page is a redirect notice pointing visitors to the club's new callsign and website location at W6EFB.
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://michielb.nl/maya/astro
Created by Michiel Bijl, this site explores Maya astronomy alongside related topics like Maya mathematics, the Maya calendar, Maya writing, and geographical orientation. It offers a fascinating intersection of ancient cultural knowledge and astronomical science, with pictures, recommended reading, and curated links.
https://allstarlink.org/
AllStarLink is a non-profit network connecting amateur radio repeaters, remote base stations, and hot spots worldwide using Voice over Internet Protocol built on the open-source Asterisk PBX platform. Ham radio operators can set up their own nodes on hardware as accessible as a Raspberry Pi, linking to thousands of other stations globally with full-duplex audio and Echolink compatibility.
http://abmedia.com/astro
Chris Cook's extensive astrophotography portfolio spans nearly four decades of celestial imaging, featuring deep sky objects, comets, eclipses, auroras, and stunning nightscape photography captured on both film and digital equipment. With NASA APOD features, astrophotography workshops, and a vast archive organized by technique and subject, this is a remarkable showcase of dedication to the craft.
http://lists.contesting.com/_3830
The 3830 mailing list archives preserve decades of amateur radio contesting discussion, spanning from 1996 through 2023. Operators and contesters can browse monthly threads or search the full archive to find score postings, contest strategies, and community conversation going back nearly 30 years.
http://catawbasky.org/
The Catawba Valley Astronomy Club (CVAC) has been bringing amateur astronomy to North Carolina's Catawba Valley for 50 years, operating the Lucile Miller Observatory and hosting public stargazing events at parks, schools, and local venues. The site serves as the club's hub for event schedules, membership applications, officer listings, and clear sky charts for observers in the region.
http://letarc.net/
LETARC appears to be a local amateur radio club or organization, with the URL structure suggesting an established regional radio group. The site likely serves as an online home for club members and enthusiasts interested in amateur radio activities and communications.
https://www.qsl.net/mara/index.html
The Madison Area Repeater Association (MARA) is a non-profit amateur radio club based in Madison, Wisconsin, affiliated with the Wisconsin Association of Repeaters. This page serves as a hub for club members, listing meeting times and locations while redirecting visitors to their newer site.