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://saguaroastro.org/
The Saguaro Astronomy Club is an Arizona-based amateur astronomy organization that has been hosting star parties, outreach events, and observing programs since 1977. Members can find observing lists, award programs, novice guides on eyepieces and binoculars, newsletters, and a full calendar of events including the Grand Canyon Star Party and the Arizona Spring Star Party.
https://www.qsl.net/g4prs
The Poole Radio Society (G4PRS) is a UK-based amateur radio club representing enthusiasts in the Poole area, hosted on the QSL.net network. The site serves as the club's online presence, likely featuring member information, club activities, and resources for local ham radio operators.
http://warac.org/
The West Allis Radio Amateur Club (W9FK) is a Wisconsin-based ham radio organization that sponsors the Wisconsin QSO Party and the David Knaus Memorial Scholarship. Visitors can find club news, event information, and resources for amateur radio enthusiasts in the greater Milwaukee area.
http://aimspice.com/
AimSpice appears to be a SPICE circuit simulation software site, offering tools for electronic circuit analysis and modeling. The minimalist page redirects visitors to the main document, suggesting a focused software or technical resource for electronics engineers and hobbyists.
https://n3vem.com/blog
N3VEM is Vance Martin's ham radio blog covering repeater projects, AREDN mesh networking, antenna builds, and special event stations like the CQ Salk activation. The site documents ongoing technical projects including the Radio Rocket and r4e repeater builds, with posts spanning portable operations, field day, and POTA activities.
https://vvara.org/
The Verde Valley Amateur Radio Association (VVARA) serves ham radio enthusiasts in North-Central Arizona, hosting regular club meetings, training presentations, and multiple weekly nets including trivia and rag chew sessions. The site also features a live weather station and camera feed from Mingus Mountain, making it a useful local hub for both radio operators and weather watchers.
http://vk2zay.net/
Alan Yates (VK2ZAY) runs a sprawling electronics and amateur radio laboratory notebook covering homebrew circuits, microcontrollers, high voltage experiments, pyrotechnics, antennas, and much more. With over 260 articles, engineering calculators, and an annual Advent Calendar of Circuits series, this is a genuine treasure trove for hands-on electronics hobbyists.
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://siriuslookers.org/
Sirius Lookers is a free, dues-free amateur astronomy club based in Sedona, Arizona, welcoming anyone with an interest in looking up at the night sky. The site lists monthly meeting schedules at the Sedona Public Library, upcoming star parties, viewing locations, moon phases, and links to dark sky resources and other astronomy clubs.
http://wildlifer.com/wildlifesites/index.html
Bill Standley's curated directory of internet resources for wildlife ecologists, organized into categories covering federal and state organizations, professional and non-profit groups, universities, and taxa such as mammals, birds, amphibians, and reptiles. The site also indexes resources for endangered species, fisheries, aquatic ecology, jobs, and wildlife-related products like telemetry equipment and optics.