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://ka6wke.blogspot.com/
Mark Schoonover (KA6WKE) shares his amateur radio experiences, including homebrew antenna tuner builds, HF mobile setups, and equipment reviews for his IC-7000 and IC-706MKIIg rigs. The site features hands-on technical posts about Z-match tuners, horizontal loops, and ladder line feeding, making it a useful read for hams interested in practical antenna projects.
https://www.qsl.net/gara
GARA (Greater Area Radio Association) hosted its club site on QSL.net, featuring repeater listings, member rosters, and information about joining the group. The file index reveals pages covering multiple frequency bands (50, 144, 222, and 440 MHz) along with affiliations with ARES, RACES, SKYWARN, and ham radio webrings typical of late-1990s amateur radio club sites.
https://tapr.org/
TAPR (Tucson Amateur Packet Radio) is a longstanding amateur radio organization focused on advancing digital communications technology for ham radio operators. The site hosts decades of Digital Communications Conference papers, open hardware licenses, packet radio resources, and membership services for experimenters pushing the boundaries of amateur radio technology.
https://mnhamradio.com/
The Bloomington Amateur Radio Association (BARA) is a club for amateur radio operators based in Bloomington, Minnesota, affiliated with the ARRL since 1979. The site covers club membership, repeater frequencies, officer listings, and resources for those looking to get their ham radio license.
https://astronomy-links.net/SETI_Battleship.html
Clark M. Thomas offers a witty essay examining the movie Battleship through the lens of real SETI science, exploring the plausibility and implications of contact with extraterrestrial civilizations. The piece weaves together astronomy, pop culture criticism, and philosophical musings about what our radio and TV signals might reveal to any alien observers.
https://www.vkham.com/
VKHam is a comprehensive Australian amateur radio resource hub run by VK2CA, featuring over 12,000 QSL card images, a directory of 1800+ VK callsigns, repeater maps for all Australian states, and an extensive electronics and kit manual library. Visitors can look up VK callsigns, browse DX information, access frequency and Morse code references, and even post classified ads for ham radio equipment.
http://talkorigins.org/faqs/faq-solar.html
Written by Sverker Johansson, this detailed FAQ explores the science of solar neutrinos, nuclear fusion in the sun, helioseismology, and the famous solar neutrino problem with rigorous depth and extensive references. It also addresses creationist arguments about the sun, making it a uniquely thorough resource for both scientific education and skeptical inquiry.
https://webbdeepsky.com/
The Webb Deep-Sky Society is an international organization founded in 1967 bringing together amateur and professional astronomers devoted to observing double stars and deep-sky objects such as galaxies, nebulae, and clusters. Members receive access to publications like The Deep-Sky Observer, monthly featured objects, star atlases, and invitations to annual meetings and star parties.
https://qsl.net/ve3bdb
The ORIGINAL Wireless Set No. 19 Group is a long-running online community dedicated to collectors and users of the WWII-era military radio known as the Wireless Set No. 19, active since 1997. Visitors can explore technical notes, photo galleries, a world inventory of surviving sets, history of the radio in Canadian service, and member submissions covering everything from operating tips to movie appearances.
https://jeff560.tripod.com/mathword.html
Jeff Miller's meticulously researched reference page tracks the earliest known uses of mathematical terminology, tracing when and where specific math words first appeared in historical texts. This is a unique etymological resource for mathematicians, historians, and anyone curious about the origins of the language of mathematics.