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://pretoria-astronomy.co.za/
The Pretoria Centre of the Astronomical Society of Southern Africa serves both amateur and professional astronomers interested in the unique southern hemisphere skies, offering membership, newsletters, observing events, and deep-sky imaging resources. Visitors can find comet reports, lunar eclipse photography, nebula images, telescope-making tips, and guides to the ASSA 100 deep-sky objects list.
http://phy6.org/stargaze/Sintro.htm
Created by Dr. David P. Stern, 'From Stargazers to Starships' is a comprehensive web-based textbook covering astronomy, Newtonian mechanics, the Sun, and spaceflight at a high school level. The site includes glossaries, timelines, Q&A sections, lesson plans, and supplementary materials for educators, making it a rich self-contained learning resource with a strong historical perspective.
https://www.qsl.net/n4xy/index.htm
N4XY's personal site covers a wide range of interests centered on ham radio, including QRP, homebrew equipment, boat anchors, RTTY, antennas, and telegraph keys. Beyond radio, the site branches into photography, tropical and marine fish, orchids, ferns, and family, making it a rich window into a dedicated hobbyist's world.
http://polarimage.fi/
A Finnish sky photography site dedicated to atmospheric phenomena including aurora borealis and noctilucent clouds captured from the high latitudes of Finland. Visitors will find striking images of both day and night skies showcasing some of nature's most dramatic light displays.
http://xjubier.free.fr/en/site_pages/solar_eclipses/ASE_1984_GoogleMapFull.html
Xavier Jubier's interactive Google Map traces the path of the May 30, 1984 annular solar eclipse across the USA, offering a detailed geographic visualization of this historical celestial event. Part of a larger solar eclipse resource site, this page lets visitors explore the eclipse path with precision using interactive mapping technology.
https://lwca.net/
The Longwave Club of America (LWCA) is a dedicated organization serving enthusiasts of radio frequencies below 500 kilohertz, covering LF, VLF, MedFER, HiFER, and Part 15 experimental beacons. Members receive 'The Lowdown,' a bimonthly publication dating back to 1974, featuring DX loggings, homebrew antenna projects, natural radio phenomena, and news from operators around the world.
https://qsl.net/wa2lqo
The Grumman Amateur Radio Club (WA2LQO) is a Long Island, New York club site covering repeater status, special event stations, VE testing sessions, and club newsletters. Highlights include historical photos from lighthouse operations aboard the Nantucket Lightship and decades of club social gatherings dating back to the early 2000s.
https://scopereviews.com/
Ed Ting's telescope review site has been gathering light since 1997, offering one of the most comprehensive collections of telescope reviews on the internet with over 100 scopes evaluated, eyepiece reviews, beginner buying guides, and a telescope rankings matrix. Video reviews, Q&A columns, and feature articles make this a go-to resource for anyone from first-time buyers to seasoned amateur astronomers.
https://www.qsl.net/dearg
The Driven Elements Amateur Radio Group (DEARG) is a Northeast Arkansas ham radio club operating under call sign KD5PXG, focused on 6 and 2 meter single sideband operation on 144.220 USB. The site serves as the club's web presence with sections for membership info, archives, and Sporadic E propagation news.
https://wz5bbs.com/radio
WZ5BBS is the amateur radio station page of an Amateur Extra class licensee, cataloging an impressive shack setup including Icom, Kenwood, and Yaesu radios alongside Diamond and Chameleon antennas. The site tracks APRS iGate activity, multiple logbooks like POTA and Logbook of the World, fox hunting events, and club memberships with the Oak Hill and Austin Amateur Radio clubs.