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/wa6bgs
The Amateur Radio Club of El Cajon (WA6BGS) is an ARRL Special Service Club serving San Diego County, with information on monthly meetings, membership applications, and T-Hunting activities. The site includes a preserved 2005 version for historical reference alongside solar and geomagnetic field status indicators popular among ham radio operators.
https://cadxa.org/
The Central Arizona DX Association (CADXA) is a ham radio club founded in 1974 and based in Arizona, boasting over 100 members many of whom hold ARRL DXCC Honor Roll status. The site offers resources for DXers including QSL card checking, a DX calendar, contest calendars, club rosters, and information on joining one of the largest amateur radio DX clubs in the state.
https://journal.seefar.dev/
Chris Farnham (W1YTQ) keeps this detailed journal covering Parks on the Air activations, antenna builds, QRP transceiver projects, and field operations across locations like Minute Man National Park and Peddocks Island. With over forty posts exploring CW/Morse Code operating, Reverse Beacon Network activity, and hands-on radio adventures, it is a rich resource for anyone interested in portable and outdoor amateur radio.
https://meteor.geol.iastate.edu/~jdduda/chasing/chasing.html
Jeff Duda, a geology student turned meteorology researcher, chronicles a decade of storm chasing with detailed chase accounts, busts, and lifetime statistics including 71 tornadoes over 111 chases and 52,000+ miles. Each year from 2008 to 2017 has its own dedicated page, making this a substantial firsthand log of severe weather pursuit across the Great Plains and Midwest.
http://ukesca.org/
The UK ESCA Users Group is a professional forum connecting scientists from academia and industry around Electron Spectroscopy for Chemical Analysis and surface science, meeting twice yearly and publishing an online newsletter. The site offers an extensive guide to surface science techniques and acronyms, tutorials, online databases of binding energies and elemental properties, and a global directory of surface science laboratories.
http://bbastrodesigns.com/
Mel Bartels runs this personal hub covering amateur telescope making alongside his BBAstroDesigns venture and beekeeping with top bar hives. The site blends hands-on astronomical craftsmanship with natural observations like ice spikes, sun rainbows, and sun pillars.
http://weather.uwyo.edu/upperair
Hosted by the University of Wyoming's Atmospheric Science department, this site provides access to real-time and historical upper air data including soundings, upper air maps, and balloon trajectory forecasts for the US and Wyoming. It's a go-to reference for meteorologists, students, and weather enthusiasts needing professional-grade atmospheric data.
http://azastronomy.com/
Richard D. Jacobs, M.D. shares his CCD astrophotography captured from his backyard in Chandler, Arizona, showcasing diffuse nebulae, galaxies, star clusters, planetary nebulae, and solar system objects despite significant light pollution. The site also covers the technical side of amateur CCD imaging including astrometry, spectroscopy, and photometry, making it a useful resource for urban amateur astronomers.
http://astroimages.com/
George Greaney's dedicated astrophotography site showcases deep sky astronomical images captured using both CCD and film techniques from his Ash Meadows Observatory in Nevada. Visitors can explore galleries of images taken with a Ritchey-Chretien 14.5-inch telescope, along with detailed sections on equipment, image processing software, and darkroom techniques for enhanced color astrophotography.
![Hurricane Forecast Model Output :: [Main]](/screenshots/26361.webp)
https://web.uwm.edu/hurricane-models/models
Hosted at the University of Wisconsin-Milwaukee, this site by Clark Evans provides hurricane forecast model output for the North Atlantic, Eastern Pacific, and Central Pacific basins. It offers an archive, storm identifiers, shapefiles, KML data, analogs, and verification tools, making it a technical reference for tracking tropical storm activity.