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://newsuperantenna.com/
Super Antenna Systems Corporation manufactures portable HF antennas designed for ham radio operators, emergency communications, and HF SSB use across all bands from 80 meters through VHF. Their flagship MP1 series antennas collapse into compact go-bag packages, making them popular for portable, mobile, backpack, and EmComm deployments worldwide.
https://sbcb.bioch.ox.ac.uk/users/oliver/home.html
Oliver Beckstein's academic homepage showcases his computational biochemistry research at the intersection of physics and biology, covering topics like ion channel gating, membrane transport proteins, and molecular simulations. Hosted at the University of Oxford's Structural Bioinformatics and Computational Biochemistry Unit, the site links to publications, software, and his lab at Arizona State University's Center for Biological Physics.
http://sss-mag.com/smith.html
A comprehensive reference hub dedicated to the Smith Chart, the classic RF engineering tool invented by Phillip Smith of RCA, covering tutorials, software downloads, example charts, reference books, and curated links to related tools and pages. Visitors can explore the mathematical foundations of impedance matching, s-parameters, and microwave design through a well-organized collection of articles, Java applets, and PDF resources.
https://wsjt.sourceforge.io/wsjtx.html
WSJT-X is the official home page for a suite of weak-signal communication software developed by Joe Taylor (K1JT) and the WSJT Development Team, supporting digital modes like FT8, FT4, JT65, WSPR, and more. The site provides user guides in multiple languages, release notes, and technical documentation for operators pursuing EME moonbounce, meteor scatter, and other extreme weak-signal amateur radio contacts.
http://cometography.com/lcomets/2006p1.html
Gary W. Kronk's Cometography provides a detailed scientific profile of Comet C/2006 P1 (McNaught), covering its discovery, orbital calculations, and observer reports from around the world. The page includes historical highlights of the comet's brightness predictions, perihelion data, and observation logs with magnitudes and coma measurements, along with photographs taken at Paranal Observatory.
http://marcmvra.net/
The Mankato Area Radio Club (MARC) has served amateur radio operators in southern Minnesota since 1954, and this official site provides meeting details, repeater frequencies, local net schedules, and VE testing information. A great resource for hams in the Mankato region looking to connect with a local club or find area frequency programming.
https://jrm.phys.ksu.edu/Scouts/Space-AstroLinks.html
Compiled by Vincent Needham at Kansas State University, this extensive link directory covers virtually every corner of space and astronomy on the web, from advocacy groups and industry players to SETI projects and digital sky surveys. With over 270 curated links organized into categories like amateur rocketry, space missions past and future, telescopes, and planetary science, it serves as a thorough reference hub for space enthusiasts and researchers alike.
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://perezmedia.net/ceruleanarc/storm-chase-sum.html
Jeremy Perez's Cerulean Arc is a detailed storm chasing blog featuring firsthand summaries of tornado intercepts and severe weather events across the American Southwest and Great Plains, stretching back to 2009. Each entry combines narrative field accounts with meteorological analysis, road network strategy, and storm photography, making it a compelling read for weather enthusiasts and chasers alike.
http://catawbasky.org/
The Catawba Valley Astronomy Club (CVAC) has been bringing amateur astronomy to North Carolina's Catawba Valley for 50 years, operating the Lucile Miller Observatory and hosting public stargazing events at parks, schools, and local venues. The site serves as the club's hub for event schedules, membership applications, officer listings, and clear sky charts for observers in the region.