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://srim.org/
James Ziegler's authoritative site hosts SRIM and TRIM, widely used scientific software packages that calculate the stopping and range of ions in matter for research and engineering applications. The site includes downloadable software, textbooks, tutorials, a historical review spanning 100 years of ion stopping research, and resources covering topics from cosmic ray soft errors to neutron damage.
https://qsotoday.com/podcasts
QSO Today is a long-running weekly podcast hosted by Eric, featuring in-depth interviews with amateur radio operators covering topics from homebrew transmitters and vintage gear to SDR, contesting, and DXpeditions. With over 535 episodes archived and a searchable episode list, it's an invaluable audio resource for ham radio enthusiasts at every experience level.
https://www.qsl.net/ac6xi
AC6XI's personal amateur radio homepage, featuring a link to a how-to page and contact information for this licensed ham operator. The site is sparse but serves as a basic online presence for the callsign AC6XI, with promises of future updates.
https://wmplota.org/
WMPLOTA (Walmart Parking Lots On The Air) is a quirky annual amateur radio event that challenges ham radio operators to work amateur satellites while operating portable from Walmart parking lots. The site organizes the event held each July, featuring rules, leaderboards, scheduled activations, and a community wiki for this uniquely accessible spin on portable satellite operation.
https://dxing.com/
DXing.com is a comprehensive reference site sponsored by Universal Radio Research, covering shortwave listening, scanner monitoring, ham radio, pirate radio, numbers stations, and more. Originally created by noted author Harry Helms, it features receiver surveys, frequency guides, QSL reporting tips, and columns from well-known radio writers like Glenn Hauser and Don Schimmel.
https://atmos.uw.edu/marka/wa.normals.html
Hosted on the University of Washington's atmospheric sciences domain, this page presents observed climate normals for Washington State covering the 1971-2000 period. Visitors can click on map markers to retrieve mean monthly precipitation, daily maximum temperature, and daily minimum temperature data for locations across the state.
http://metroplex.org/
The Metroplex Amateur Radio Association (ARA) out of Fort Lee, NJ maintains this page listing their repeater frequencies, EchoLink node information, and club officers. A historic photo of core members from 2000 honors the club's founder, Alex Magocsi W2OV, and a membership application form is available for prospective hams.
http://www-k12.atmos.washington.edu/k12/grayskies
Hosted by the University of Washington's Atmospheric Sciences department, GRAYSKIES is an educational resource focused on Earth's atmosphere, offering climate data, rooftop weather observations, and curated links to Pacific Northwest weather and climate tools. Visitors can explore 30-year climate averages, satellite imagery, and data plotting tools alongside a broad collection of regional and national weather resources.
https://semarc.org/
SEMARC (South East Metro Amateur Radio Club) is a 501(c)(3) amateur radio club based in Cottage Grove, Minnesota, active since 1988 and affiliated with the ARRL. The site covers club meetings, volunteer examiner testing sessions, public service events, emergency communications, and membership information for ham radio enthusiasts in the Twin Cities metro area.
https://ciura.tripod.com/index.html
Steve (KB9JWD) is a ham radio operator and trained weather spotter from Downers Grove, Illinois who built this page to share his twin passions for amateur radio and meteorology. Visitors will find links to SKYWARN spotter gear, the QRZ callsign database, amateur radio practice exams, local radio club pages, and weather resources.