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/w4llo/links.htm
The Key West Amateur Radio Club maintains this extensive links directory covering nearly every corner of the amateur radio hobby, from DX clusters and contesting clubs to propagation, licensing, and emergency communications resources. Compiled in collaboration with the Northern Berkshire Amateur Radio Club (NoBARC), it offers hundreds of categorized links spanning antennas, QSL cards, packet radio, shortwave, and more.
http://marcmvra.net/
The Mankato Area Radio Club (MARC) has served amateur radio operators in southern Minnesota since 1954, and this official site provides meeting details, repeater frequencies, local net schedules, and VE testing information. A great resource for hams in the Mankato region looking to connect with a local club or find area frequency programming.
https://repeater-builder.com/
Repeater Builder is a dedicated resource for amateur radio enthusiasts focused on building, modifying, and maintaining repeater systems. The site dives into the technical side of ham radio infrastructure, making it a go-to reference for hobbyists who want to construct or upgrade their own repeaters.
http://ccs.neu.edu/home/amislove/twittermood
Researchers at Northeastern and Harvard University mapped U.S. emotional mood patterns across time and geography using over 300 million tweets from 2006 to 2009. The project features time-lapse video visualizations, density-preserving cartograms, and findings on daily and weekly mood cycles across the country.
https://flintriverastronomy.org/
The Flint River Astronomy Club (FRAC) is a Georgia-based astronomy club serving the Griffin area, hosting monthly meetings, public observing events at Indian Springs State Park, and club observing weekends at Joe Kurz WMA. Members have access to observing lists, tools, national awards, newsletters, and articles, making this a well-rounded hub for amateur astronomers in the region.
http://spider.seds.org/spider/Misc/naming.html
A detailed reference page from SEDS (Students for the Exploration and Development of Space) explaining how stars are named, from ancient cultural traditions to modern systematic schemes like the Bayer designation system introduced in 1603. Created by Hartmut Frommert and Christine Kronberg, the page covers Greek letter designations, star catalogs, IAU nomenclature standards, and debunks commercial 'name a star' schemes.
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://www.benholcomb.com/storm-chasing/links
Ben Holcomb's storm chasing hub is a sprawling personal site featuring tornado videos, pictures, past chase logs, statistics, and equipment guides built over nearly two decades of active chasing. This links page alone connects to hundreds of fellow storm chasers and meteorological resources, making it a valuable hub for the storm chasing community.
http://foxdelta.com/
Fox Delta, operated by K7SFN, I2TZK, and VU2FD, is a direct-sales kit shop and project resource for amateur radio enthusiasts, offering RF amplifiers, SWR meters, antenna rotator software, and more. The site features a range of active and previous hardware kits including the PA-100 IRF510 RF amplifier and ST2 USB interface, all sold exclusively through this site with no third-party dealers.
https://qsl.net/see
The Society of Ether Explorers (K6SEE) is a San Francisco amateur radio club of experimenters, hackers, and tinkerers focused on esoteric and unusual aspects of wireless communication. Their site documents club members, ongoing projects like the 33cm repeater conversion effort (Project 33), ATV repeating, and remote base control builds from the late 1990s.