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://rxcontrol.free.fr/
A technical hobbyist site focused on shortwave listening, featuring custom hardware designs using PIC microcontrollers, RTTY decoders, HF receiver control software, and digital decoding tools built by the creator. Visitors will find schematics, software downloads, and detailed projects spanning everything from RS-232 adapters to ADS-B decoders and frequency standards.
http://twisterdata.com/
TwisterData.com is a meteorological data tool built in 2008 by storm chasers David Demko and Donald Giuliano, offering RAP, NAM, and GFS weather model forecasts with detailed atmospheric parameters like CAPE, hodographs, helicity, and sounding data. Designed with a clean, data-first philosophy, it pulls from NOAA datasets and is especially valuable for storm chasers, meteorologists, and serious weather enthusiasts who need raw model output without distractions.
http://astronomylinks.com/
astronomyLINKS is a comprehensive curated directory of over 1000 astronomy and space-related links organized into categories like astrophotography, black holes, deep-sky objects, telescopes, and astronauts. Running since 2002, it serves as a one-stop portal for amateur and professional astronomers seeking resources, news, software, and community connections from around the world.
https://moonconnection.com/
MoonConnection.com is a comprehensive lunar reference covering moon phases, eclipses, Apollo missions, tides, and the moon's gravitational effects, complete with interactive tools and a monthly phases calendar. It also offers practical guides on fishing, hunting, and night photography by moon phase, plus companion mobile apps for tracking lunar cycles on the go.
https://skyinmotion.com/chase
A detailed archive of storm chasing expeditions spanning nearly two decades, with logs organized by year covering locations across the Great Plains and beyond. Each entry includes photos, videos, maps, and written accounts of individual chase events, making it a compelling record for anyone fascinated by severe weather.
https://pierplates.com/
Dan's Pier Top Plates is a small business site selling custom mounting hardware for backyard telescopes, including pier top plate systems, DIY telescope enclosures, and adapters for metal piers. Hobbyist astronomers looking to build a permanent concrete or metal telescope pier for a home observatory will find products, FAQs, and installation guides here.
https://www.qsl.net/bharc
Hosted on QSL.net, this site belongs to BHARC, likely a local amateur radio club or ham radio organization based on the domain structure. The page uses frames, suggesting it contains club information, resources, or member content typical of ham radio community sites from the early web era.
http://ncrg.org.au/
The Northern Corridor Radio Group (NCRG) is an amateur radio club based in Whiteman Park, Perth, Western Australia, operating callsigns VK6ANC, VK6NC, and VK6NE across contests and regular on-air activity. The site covers club meetings, licensing courses, exams, repeater status, construction projects, and events like the annual Hamfest and carboot sale.
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://eclipsechaser.com/
Jeffrey R. Charles runs this comprehensive resource dedicated to total solar eclipses, featuring expedition journals, astrophotography galleries, equipment guides, and umbral data from eclipses dating back to 1979. Winner of the Griffith Observatory Star Award, the site covers everything from eclipse chasing expeditions to optics and accessible telescope guides.