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/fcg
The Frankford Communications Group (FCG) is a competitive amateur radio club based in the northeastern United States, known for its serious contesting focus and active membership. Visitors will find club news, contest results, member resources, and information about joining one of the most accomplished ham radio contest clubs in the country.
https://live.som.ou.edu/
A workshop series on tornado forecasting presented by Rich Thompson of the Storm Prediction Center, hosted by the University of Oklahoma School of Meteorology. The archive offers session-by-session PowerPoint downloads covering topics like supercell models, severe storm ingredients, synoptic patterns, and real-time forecasting exercises.
https://www.qsl.net/n1bwt/contents.htm
Paul Wade W1GHZ has published his comprehensive Microwave Antenna Book online, covering everything from parabolic dish antennas and horn feeds to electromagnetic field analysis and antenna range measurements. A deep technical reference spanning 13 chapters with downloadable software tools, this is an essential resource for amateur radio operators working in the microwave frequency bands.
https://empslocal.ex.ac.uk/people/staff/mrwatkin
Matthew R. Watkins is a mathematician and honorary researcher at Exeter University whose site centers on his celebrated 'Secrets of Creation' trilogy, making analytic number theory and prime numbers accessible to general audiences. The site also features a number theory and physics archive, prime number resources for beginners, and links to his eclectic range of interests including parapsychology, the I Ching, and psychogeography.
http://omnicron.com/~ford/ford.html
Mike Ditto's personal homepage, created in 1993 and barely updated since, covers his life as a software engineer in Austin with interests spanning amateur radio, maps, music, skiing, and computers. A built-in Morse Code Translator and links to his blog with OpenSolaris home networking tips make it a small but charming relic of early web culture.
http://oscarmn.org/
The Owatonna Steele County Amateur Radio club (OSCAR) serves ham radio enthusiasts in Owatonna, Minnesota, with resources including repeater info, EchoLink access, a club store, and emergency service coordination. The site lists club officers, monthly meeting details, licensing classes, and links to ARRL, SKYWARN, and local emergency management organizations.
https://www.qsl.net/wb4kdi
Dave J. Barnes, callsign WB4KDI, maintains this amateur radio site covering radio equipment notes, operating notes, digital modes, and DX beacons. It also includes band condition monitoring tools and an online resources index, making it a handy reference for fellow ham radio enthusiasts.
https://arca-az.org/
The Arizona Repeater Council of Arizona (ARCA) appears to be an organization coordinating amateur radio repeater operations across the state of Arizona. The site uses frames-based navigation, suggesting an older web presence dedicated to ham radio coordination and regional repeater management.
https://thunder.fanfreak.net/
A fanlisting dedicated to thunderstorms, inviting fans from around the world to add their name to a growing list of fellow storm enthusiasts. With 59 members and running since 2011, it is part of the TheFanlistings.org network and uses the Listing Admin Robotess Fork script.
http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/svr/home.rxml
Part of the University of Illinois WW2010 online meteorology project, this module covers severe storms in depth using the NOAA Severe Storms Spotters Guide as its foundation. Visitors can explore thunderstorm types, tornado formation, updrafts and downdrafts, and even computer modeling of supercells and squall lines through a well-structured educational guide.