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://qsl.net/rmnarc
The Rocky Mountain Navy Amateur Radio Club (K0USN) is a military-themed ham radio club founded in 1999 to honor active duty, retired, and separated Navy personnel while promoting amateur radio operation and technical training. The site lists club officers with their callsigns and military ranks, and links to pages covering upcoming events, members in action, and contest victories.
http://mathematicalpoets.weebly.com/
A research project exploring the intersection of mathematics and poetry through a historical timeline tracing connections between mathematicians and poets across the centuries. The site offers a curated timeline, sources, and resources for anyone curious about how these two disciplines have influenced each other.
https://www.qsl.net/vk3te/Packet.html
Peter Brennan (VK3TE) runs this page dedicated to his packet radio BBS operations in Victoria, Australia, where he serves as sysop for multiple nodes including VK3TE and VK3SPB, connecting to an extensive international packet network. The site details his RF feeds to Melbourne-area BBS stations, AXIP/AXUDP partnerships spanning Australia, New Zealand, Europe, and North America, and offers telnet access for users wanting to join the network.
https://www.qsl.net/ps7ab
PS7AB is Rony's Brazilian amateur radio historical archive, dedicated to preserving the history of ham radio in the region. The page serves as a redirect to a Yahoo Geocities mirror, suggesting the main content lives at that now-defunct address.
https://lcwo.net/
LCWO.net, created by Fabian Kurz (DJ5CW), is a comprehensive web-based platform for learning Morse code (CW) using the Koch method, with interactive exercises, progress tracking, and a global community of learners. The site features user highscores, forums, user groups, and multilingual support across dozens of languages, making it a go-to resource for ham radio operators worldwide.
http://lowellhighlandsweather.com/
Lowell Highlands Weather is a personal weather station site for Lowell, Massachusetts, delivering live temperature, humidity, wind, and barometric readings powered by WeeWX software. Beyond real-time gauges, the site offers an impressive array of resources including historical climate data, radar and satellite imagery, tropical storm tracking, and local astronomy almanac information.
https://do1mj.de/
Marc, callsign DO1MJ, documents his amateur radio journey after earning his license in January 2022, with a strong focus on SOTA (Summits on the Air) activations across Germany, Slovenia, and beyond. Posts cover field equipment, Yaesu radio tips, mountain hikes combined with radio activations, and practical techniques for lightweight portable operating.
https://rochesterastronomy.org/snimages
Bright Supernova, maintained by David Bishop, is a dedicated tracking resource for bright supernovae observations and images. This redirect page points to a larger archive at RochesterAstronomy.org, suggesting a substantial collection of supernova data and imagery for amateur and professional astronomers alike.
http://stellar-database.com/scale.html
A concise educational page from stellar-database.com that walks readers through the mind-bending scale of the universe, from the Earth's diameter out to the edge of the known cosmos. It explains astronomical units, light-years, and parsecs with precise conversion figures, making vast cosmic distances tangible and comparable.
https://tcfmc.org/
The Twin Cities FM Club (TCFMC) is a Minnesota-based amateur radio organization dedicated to emergency communications, community education, and operating local repeater frequencies for ham radio operators in the Twin Cities area. The site features club nets, a weekly swap shop on 146.76, membership sign-up, and resources on technologies like Wires-X, EchoLink, and AllStarLink.