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://cosmotography.com/images/rc.html
R. Jay GaBany's Blackbird Observatory page details the technical setup behind his acclaimed astrophotography work, including a half-meter Ritchey-Chretien telescope, professional CCD cameras, and two remote observatory locations in New Mexico and the California Sierra Nevada. The site is a fascinating window into serious amateur deep-sky imaging, covering instrumentation, elevation advantages, and the evolution of the observatory from 2005 through 2014.
http://worldclimate.com/
WorldClimate.com is a comprehensive database of historical weather averages for over 85,000 locations worldwide, offering rainfall, temperature, and precipitation records spanning decades. Travelers, researchers, and curious minds can look up climate normals for cities from Bangkok to Lima, making it a handy reference for trip planning, relocation decisions, or general weather curiosity.
https://astrotulsa.com/
The Astronomy Club of Tulsa is a non-profit organization that has been bringing astronomy to Oklahoma residents since 1937, operating its own observatory southwest of Tulsa near Mounds and hosting regular public stargazing events. Visitors can find event schedules, monthly newsletters, sky maps, and resources for both beginners and experienced astronomers.
http://www.zerobeat.net/
ZeroBeat.net is a hub for radio communications enthusiasts, featuring technical articles, historical items, and resources covering amateur radio topics like CW telegraphy, QRP low-power operation, and R.L. Drake equipment. Visitors will find links to antenna handbooks, online licensing exams, Morse code resources, and submarine radio operations, making it a handy reference for hams of all experience levels.
http://www2.rdrop.com/users/billmc
Bill McFadden's eclectic homepage covers a surprisingly deep range of radio-related interests, from pirate radio station KHOG and FCC licensing FAQs to scanner frequencies, shortwave charts, and wireless microphone regulations. Alongside the radio content, visitors will find loudspeaker design resources, audio editing scripts for Cool Edit Pro, and home automation links, making it a genuine hobbyist's workbench online.
https://dk7ih.de/
DK7IH is Peter Baier's deep-dive engineering site dedicated to building 'hardware defined' ham radio transceivers the old-school way, with analog filters, mixers, and amplifiers rather than software-defined approaches. Dozens of detailed project write-ups cover QRP SSB transceivers, multiband portables, handheld rigs, and homebrew designs spanning HF bands from 1.8 to 28 MHz.
https://britastro.org/useful-links
The British Astronomical Association, supporting amateur astronomers since 1890, maintains this curated directory of useful links covering UK astronomy societies, observing resources, and related organizations. Visitors will find connections to groups like the Society for Popular Astronomy, the Federation of Astronomical Societies, and many more resources spanning the full breadth of amateur astronomy.
http://weather.mailasail.com/Franks-Weather/Home
Frank Singleton's extensive weather and sailing resource covers marine meteorology, GRIB files, GMDSS services, weather communications, and practical forecasting guidance for sailors and cruisers. With cruising logs dating back to 2000, links to national weather services, and coverage of topics from basic atmospheric theory to climate change, this site is a remarkably thorough reference for anyone navigating at sea.
https://thunder.fanfreak.net/
A fanlisting dedicated to thunderstorms, inviting fans from around the world to add their name to a growing list of fellow storm enthusiasts. With 59 members and running since 2011, it is part of the TheFanlistings.org network and uses the Listing Admin Robotess Fork script.
https://fishesofaustralia.net.au/
Fishes of Australia is a comprehensive reference database hosted by Museums Victoria on behalf of the OzFishNet community, covering the diversity and biology of Australia's marine and freshwater fish species. Visitors can explore an interactive Lucid Key for identifying freshwater fishes, a picture-based Family Finder, and detailed species profiles like the rare Whiskered Prowfish.