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://mesovortex.com/
Phil Kurimski's personal storm chasing site documents decades of tornado and severe weather pursuits, with detailed chase logs spanning from 1998 through 2018 organized by date. Visitors can explore chase videos, storm photography from across the Great Plains, weather research including a published NWA paper, and a wealth of meteorological resources.
https://members.wolfram.com/jeffb/poster/poster.html
A detailed educational presentation on cataclysmic variable stars (CVs), covering binary star systems, accretion disks, novae, polars, and outburst phenomena with artist renditions and real observational data. Created by Jeff B. and hosted on Wolfram Research servers, the site features light curves, spectra, and telescope images from Lowell Observatory's 31-inch NURO telescope.
http://momnpopsware.com/
Mom 'N' Pop's Software is a small family-run vendor based in Spring Hill, Florida, established in 1989, selling CD-ROM and DVD software with a heavy focus on Ham Radio titles alongside education, games, and utilities. Their free downloadable catalog includes a special Ham Radio edition featuring over 1000 shareware and freeware programs, making it a notable resource for amateur radio enthusiasts on a budget.
https://k5sld.org/
The Arlington Amateur Radio Club (K5SLD) is a community club based in Arlington, Texas, offering weekly nets on their 2-meter repeater, club dinners, licensing resources, and membership information. The site serves as the central hub for local ham radio operators to stay connected, pay dues, and participate in club events including CERT emergency response training.
https://illinoiswildflowers.info/
Created by Dr. John Hilty, Illinois Wildflowers is a comprehensive botanical reference covering prairie, woodland, wetland, savanna, and weedy wildflowers native to Illinois, complete with plant-feeding and flower-visiting insect databases. The site's depth is remarkable, extending beyond flora to include vertebrate animal interactions, botanical and ecological terminology, and detailed photo documentation built over nearly two decades.
https://knotplot.com/
Created by Robert G. Scharein, the KnotPlot Site is a visually stunning exploration of mathematical knot theory, featuring hundreds of images and animations generated by the KnotPlot software for Windows, macOS, and Linux. Visitors can browse galleries of torus knots, Celtic knots, hyperbolic knots, Brunnian links, and fractal structures, as well as download the KnotPlot program itself to visualize and manipulate knots in three and four dimensions.
http://astronomylinks.com/
astronomyLINKS is a comprehensive curated directory of over 1000 astronomy and space-related links organized into categories like astrophotography, black holes, deep-sky objects, telescopes, and astronauts. Running since 2002, it serves as a one-stop portal for amateur and professional astronomers seeking resources, news, software, and community connections from around the world.
http://cbat.eps.harvard.edu/index.html
The Central Bureau for Astronomical Telegrams (CBAT), hosted at Harvard University since 1966, is the official IAU clearinghouse for announcing new astronomical discoveries including comets, novae, supernovae, and other transient celestial events. Visitors can browse online IAU Circulars, subscribe to discovery feeds, explore lists of supernovae and comets, and learn how to submit their own astronomical observations.
http://blog.marxy.org/
Peter Marks (VK2ZZC) runs this long-running blog blending amateur radio experimentation, particularly FreeDV digital voice modes, with regular technology commentary for ABC Radio's Nightlife program. Visitors will find net reports, homebrew radio projects, and tech takes on AI, Apple, and social media policy alongside links to the amateur radio community.
http://okie-tex.com/index.php
The Okie-Tex Star Party is an annual astronomy event held at Camp Billy Joe in the Black Mesa area of Oklahoma, offering some of the darkest skies in the Southwest for stargazers. The site covers everything attendees need, including registration, event schedules, observing lists, meal menus, accommodation info, and a photo gallery from past gatherings.