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://dx.qsl.net/
DX.QSL.NET is a dedicated hub for amateur radio DXing enthusiasts, offering a powerful log search engine to browse DX logs from around the world. Visitors can access dynamic propagation reports, Tropo Ducting information, and real-time DX spots via a chat interface, making it a practical toolkit for active DXers.
http://karc.net/
KARC.net appears to be the web presence for a Kansas amateur radio club or organization, serving as a hub for local ham radio operators. The site functions as a host server for the club's online activities and community resources.
https://wallcloudchaser.com/
WallCloudChaser.com is the personal site of Minnesota storm chaser Jarrod Schoenecker, featuring dramatic tornado photography, weather videos, and documentation of severe weather events like the 2019 Biscay-Silver Lake EF-1 tornado. Visitors will find a weather library, equipment lists, CoCoRaHS participation, and photography-for-hire services rooted in Jarrod's passion for chasing severe Midwest weather.
https://www.qsl.net/ur4eyn
UR4EYN is a Ukrainian amateur radio club station page hosted on QSL.net, the classic hub for ham radio operators worldwide. The site serves as an online presence for the club, likely featuring callsign information, station details, and contact data for fellow operators.
https://golem.ph.utexas.edu/string/index.shtml
The String Coffee Table is a collaborative group blog hosted at the University of Texas at Austin, bringing together physicists to discuss string theory, loop quantum gravity, conformal field theory, and related advanced topics. Posts make heavy use of MathML for rendering equations, and contributors include researchers like Urs Schreiber and Lubos Motl, making it a rich academic resource for cutting-edge theoretical physics.
https://birdlist.org/index.htm
BirdList.org is a comprehensive global reference cataloging over 10,000 bird species across 200 countries, with data coded for abundance, breeding, migration, wintering, and endemic status. Run by professional biologists affiliated with the World Institute for Conservation and Environment, the site also offers bird tour listings for destinations like Peru, Ecuador, Ethiopia, and Uganda, with species lists available in multiple languages.
https://jmol.sourceforge.net/
Jmol is a free, open-source Java application and HTML5 tool for visualizing chemical structures in interactive 3D, supporting molecules, crystals, biomolecules, and materials. The project offers downloadable binaries, extensive scripting documentation, demos, and a community mailing list, making it a go-to resource for chemistry education and research.
http://w1mx.mit.edu/
The MIT Radio Society (W1MX) is America's oldest college amateur radio station, a student-run club at MIT focused on RF engineering, telecommunications, and radio science. The site covers membership info, meeting schedules, club history, ham exam resources, balloon programs, and a capital campaign to build a new station.
http://wiki.solarsails.info/index.php/Main_Page
SolarSailWiki is a community-edited wiki dedicated entirely to solar sail spacecraft, covering the science of light pressure, mission histories, technologies, and future applications for propellantless space travel. With sections on design, real-world missions like the Planetary Society's LightSail, books, papers, and conferences, it serves as a comprehensive reference for anyone fascinated by this elegant form of space propulsion.
http://www.seasky.org/
Sea and Sky is a dual-themed educational resource covering both ocean life and the universe, with sections on coral reef creatures, deep sea exploration, saltwater aquariums, constellations, and space exploration timelines. Visitors can browse image galleries, play free sea-themed games, read news headlines, and dive into hundreds of curated links covering marine biology and astronomy alike.