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://cqrlog.com/
CQRLOG is a feature-rich ham radio logging application for Linux, built on a MySQL database and supporting over 140 radio types via hamlib integration. The site serves as the official home for the software, offering downloads, user forums, DX cluster support documentation, and updates from the development team.
https://www.qsl.net/redoakarc
The Red Oak Victory Amateur Radio Club (ROVARC) is an ARRL-affiliated ham radio club based aboard the SS Red Oak Victory, a WWII Victory Ship docked in Richmond, California. Club members have restored the ship's original radio room to operating condition and operate on the ham bands under callsigns K6YVM and NY6CI, blending maritime history with amateur radio.
http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_1972_GoogleMapFull.html
Xavier Jubier's interactive Google Map documents the path of the July 10, 1972 total solar eclipse over Canada, offering precise geographic visualization of the totality corridor. Part of a larger solar eclipse resource site by Jubier, this page is a valuable reference for eclipse chasers and astronomy enthusiasts researching historical eclipse paths.
https://electronics2000.co.uk/
Electronics 2000, created by Simon Carter, is a comprehensive hobby electronics reference packed with online calculators for resistors, capacitors, inductors, Ohm's Law, and more, plus technical data articles, pin-outs, and a beginner's guide. The site also offers downloadable Windows software like Electronics Assistant and an EPE Index, making it a genuinely useful toolkit for hobbyists, students, and engineers alike.
http://habitat.org.uk/news1.htm
Wharfe Conserv@tion is a monthly review of wildlife conservation news in Britain, covering topics from GM crops and endangered butterflies to otters, wildflowers, and Scottish ecosystems. The site features a science section, conservation headlines organized across multiple pages, book reviews, and links to wildlife resources, making it a rich hub for UK nature enthusiasts.
https://skywatch.brainiac.com/astroland
Uncle Rod Mollise's Astro Land is a long-running amateur astronomy hub hosted at 'Chaos Manor South,' packed with telescope guides, equipment reviews, CCD and webcam imaging tips, and resources for Schmidt-Cassegrain telescope users. Rod also runs the Mobile Astronomical Society and offers a free Used CAT Buyer's Guide, making this a genuinely useful stop for backyard astronomers of all levels.
http://tropic.ssec.wisc.edu/
Run by the Cooperative Institute for Meteorological Satellite Studies at the University of Wisconsin-Madison, this site provides real-time satellite-based analysis tools and data products for tracking and studying tropical cyclones worldwide. Researchers and weather enthusiasts alike will find an impressive suite of tools including intensity estimation algorithms, microwave imagery composites, and a full archive covering Atlantic, Pacific, Indian Ocean, and South Pacific storm basins.
http://theastropages.com/glossary/index.htm
The @stro Pages is a comprehensive amateur astronomy resource featuring a full A-Z glossary of astronomical terms, astrophotos, articles, and an observer's log focused on the San Diego area. With sections covering telescope making, deep-sky objects, and a local astronomy calendar, it serves as a rich hub for stargazers of all experience levels.
https://spacewatch.lpl.arizona.edu/fmo-project/overview
The SPACEWATCH® FMO Project, run by the University of Arizona's Lunar and Planetary Laboratory, documents the detection of Fast Moving Objects, which are near-Earth asteroids passing so close that they appear as light trails in telescope imagery. The site explains the science behind close-approach asteroid detection, shares discovery images, and describes the citizen participation program that once helped identify faint FMOs.
https://rep.pt/
The Rede dos Emissores Portugueses (REP) is Portugal's national amateur radio association, founded in 1926 and a member of the IARU since 1933, representing ham radio operators across Portugal, the Azores, and Madeira. The site offers a repeater network directory covering VHF/UHF FM, DMR, D-Star, Echolink, and more, alongside news, contests, licensing information, and regulatory resources from ANACOM.