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://webspace.science.uu.nl/~hooft101
The official homepage of Gerard 't Hooft, Nobel Prize-winning theoretical physicist at Utrecht University, covering his research into quantum mechanics, quantum field theory, and black hole physics. Visitors can access his lecture notes, publication list, curriculum vitae, and his ongoing work on deterministic quantum mechanics and the origins of quantum behavior.
https://www.qsl.net/ciarc
The Christians of Idaho Amateur Radio Club (CIARC) is a faith-based ham radio organization that monitors multiple simplex frequencies and aims to spread the Christian faith through amateur radio. Designed by Darin Roberts in 2006, this club site serves as a hub for members who combine their passion for radio communication with their religious mission.
https://www.qsl.net/smcara/club_members.html
The St. Mary's County Amateur Radio Association (SMCARA) has been supporting amateur radio operators in southern Maryland since 1956, and this page presents their full club membership roster with call signs, license classes, and ARRL/volunteer examiner status. With 62 members listed and resources for becoming a ham radio operator, the site offers a solid look at an active regional ham radio club.
https://mrasz.hu/
The Magyar Rádióamatőr Szövetség (MRASZ) is the official national amateur radio society of Hungary, organizing contests, events, and news across shortwave, UHF, radio direction finding, and high-speed telegraphy disciplines. The site features competition announcements, a QSL bureau, licensing information from the NMHH authority, and resources for Hungarian radio amateurs at all levels.
https://www.qsl.net/lcarc
The Logan County Amateur Radio Club (LCARC) serves ham radio enthusiasts in Logan, West Virginia, about 60 miles south of Charleston. The site provides information on club repeaters, meeting details, membership applications, and archives for this reviving local radio club.
http://solstation.com/habitable.htm
Sol Station explores the concept of habitable zones around stars, presenting scientific information about which stellar systems might support life. The site offers a visually driven look at astrobiology and planetary habitability, making complex astrophysics accessible to curious visitors.
https://101science.com/Radio.htm
A comprehensive free electronics and electrical engineering reference hub covering everything from basic electricity and Ohm's Law to advanced RF design, DSP, amateur radio, and circuit simulation. With hundreds of curated links, formulas, tutorials, data sheets, and calculators organized across multiple phases of learning, it serves as a structured self-study guide for electronics enthusiasts and engineers alike.
https://w5ac.tamu.edu/
W5AC is the Texas A&M University Amateur Radio Club, founded in 1912, making it one of the oldest university radio clubs in existence. The site covers club meetings, repeater information, nets, field day events, emergency communications, and free license exam sessions open to students and the public.
https://tarc.org/
The Temple Amateur Radio Club (TARC), operating under call sign W5LM, serves amateur radio enthusiasts in Temple, Texas with monthly meetings, weekly nets, license classes, and emergency communications training. The site also hosts information about HamExpo, a regional hamfest and vendor expo, along with an extensive archive of monthly club newsletters dating back several years.
https://www.qsl.net/kb9ocq/index.html
Dale Catron (KB9OCQ) built this ham radio personal page focused on the 2-meter band, featuring antenna specs, repeater information, and a dense collection of links covering equipment brands like Icom, Yaesu, Kenwood, and Alinco. The site also includes FCC rules, online practice exams, ARRL resources, and participation in multiple amateur radio webrings from the late 1990s.