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://w5auu.org/
A ham radio operator's personal site identified by the W5AUU callsign, redirecting visitors to an updated location. The W5 prefix places this operator in the Texas/Oklahoma/Louisiana/Mississippi/Arkansas region, making it a regional amateur radio resource.
https://erau.ee/et
The Estonian Amateur Radio Union (ERAÜ) is the official national organization for ham radio operators in Estonia, a member of IARU since 1938. The site offers extensive resources including contest calendars, repeater and beacon info, exam guidance, QSL services, SDR links, and club directories, all available in Estonian and English.
http://calendarzone.com/
The Calendar Zone, created by Janice McLean, is a comprehensive categorized directory of calendar-related links covering art, celestial, cultural, religious, historical, and reform topics. With over 7 million visitors since 1999, it serves as a one-stop hub for anyone curious about calendar systems, moon phases, lunar cycles, and the history of timekeeping across cultures.
https://macastro.org.au/
The Macarthur Astronomical Society serves amateur astronomers in Sydney's south west, offering field nights at multiple observation sites, astro imaging workshops, citizen science projects, and a Deep Space Hunt program. With resources like the Messier and Caldwell lists, ISS tracking, sky conditions, and a 2028 Solar Eclipse planning page, this is a well-rounded hub for a genuinely active local astronomy club.
http://www1.phys.vt.edu/~jhs/astroclb/index2.html
The Astronomy Club of Virginia Tech hosts this homepage for students and enthusiasts interested in stargazing, telescope use, and observing events at the Prices Fork Observatory. Visitors will find meeting schedules, officer contacts, club photos, and a curated set of observing tools including Messier maps and monthly sky charts.
https://everyone.melonland.net/~nature
Nature Camp is a collaborative MelonLand Guild bringing together nature enthusiasts who share a love of bugs, plants, mushrooms, rocks, and wildlife photography. The site features a member directory, forum discussion links, and curated nature resources like iNaturalist and BugGuide, all built and maintained collectively by its growing community.
https://qsl.net/n2jac/jota99/jota99.html
N2JAC documents their participation in Jamboree On The Air (JOTA) 1999, an annual event where Scouts around the world connect via amateur radio, held at Webster Park in Webster, New York. The page is a photo gallery featuring fellow operators like John W3OAB and Irv AF2K, offering a snapshot of grassroots ham radio community events from the late 1990s.
http://k1kkm.org/
K1KKM is a personal amateur radio operator's site identified by the distinctive callsign in the domain name. Though the page text is minimal, the callsign format strongly suggests a ham radio enthusiast sharing their station and hobby activities.
https://rocksandminerals4u.com/
Rocks and Minerals 4U is a comprehensive educational resource covering geology topics including rock formation, mineral identification, plate tectonics, and the rock cycle, with dedicated pages for igneous, metamorphic, and sedimentary rocks. Designed for collectors, students, homeschoolers, and teachers, the site offers lesson plans, crossword puzzles, photo galleries, and even a shop for rock and mineral specimens.
http://cordell.org/
Cordell Expeditions is a site dedicated to exploration and expedition activities, likely covering adventures, field research, or scientific trips into the natural world. The name and framing suggest a group or initiative organized around outdoor discovery and expedition-based work.