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://northlandantiqueradioclub.com/
The Northland Antique Radio Club (NARC) is a Minnesota-based club for vintage radio enthusiasts, hosting events like Radio Daze swap meets, auctions, and hands-on restoration workshops in the Minneapolis/St. Paul area. The site features event calendars, photo galleries from past gatherings, membership information, and restoration notes for antique radios.
http://rocklandastronomy.com/
The Rockland Astronomy Club (RAC) is one of the East Coast's premier nonprofit astronomy education organizations, hosting star parties, lectures, dark sky observing sessions, and the renowned Northeast Astronomy Forum (NEAF). Visitors can find event schedules, observing locations at New York state parks, and information about joining a vibrant community of amateur astronomers.
https://wwjournal.org/
Western Wildlife is the open-access, peer-reviewed journal of the Western Section of The Wildlife Society, publishing original research on ecology, natural history, management, and conservation biology of animals. Formerly known as Transactions of the Western Section of the Wildlife Society, the journal accepts manuscript submissions and makes accepted papers available online.
http://scdxc.org/
The Southern California DX Club (SCDXC) is a 77-year-old amateur radio organization focused on DX (long-distance) contacts, bringing together ham radio enthusiasts across the Southern California region. The site hosts membership info, newsletters, a digital library of amateur radio materials, and links to key resources like the ARRL, NCDXF, and QSL bureau services.
https://www.vkham.com/
VKHam is a comprehensive Australian amateur radio resource hub run by VK2CA, featuring over 12,000 QSL card images, a directory of 1800+ VK callsigns, repeater maps for all Australian states, and an extensive electronics and kit manual library. Visitors can look up VK callsigns, browse DX information, access frequency and Morse code references, and even post classified ads for ham radio equipment.
https://assa.org.au/
The Astronomical Society of South Australia (ASSA) is an active community organization offering public and member viewing nights, monthly meetings, and astronomy resources for all skill levels. The site features a rich collection of guides covering astrophotography, comets, variable stars, Aboriginal astronomy, and solar system events, plus details on observing sites like Stockport Observatory.
https://masatern.tripod.com/
KB1GLF's unofficial web presence for the Massachusetts chapter of the Salvation Army Team Emergency Radio Network (SATERN), a group of licensed amateur radio operators who provide emergency communications support during disasters. The site includes member lists, training resources, a calendar, event photos, and information about the weekly Friday night net on 145.23 MHz.
http://badastronomy.com/index.html
Phil Plait, astronomer and science communicator, built this site to debunk widespread myths and misconceptions about astronomy, from Moon landing hoax claims to equinox egg-balancing folklore. With sections covering movies, news, TV, and bite-sized astronomy lessons, it is a rich resource for anyone wanting to separate cosmic fact from fiction.
http://deep-sky.co.uk/asterisms.htm
David Ratledge's guide to observing asterisms takes readers through a collection of star patterns visible through binoculars and small telescopes, complete with images and observing tips. Inspired by a 1998 Sky & Telescope article, this page celebrates overlooked celestial dot-to-dot patterns like Kemble's Cascade, the Coathanger, and the ET Cluster with genuine enthusiasm and hands-on detail.
https://qsl.net/w4sat/antenna.htm
Antenna Elmer is a comprehensive ham radio antenna reference covering dipoles, folded dipoles, ground planes, beams, and vertical antennas for HF, VHF, and UHF frequencies. Visitors can design their own antennas using calculators and conversion tools, with guides covering coax efficiency, frequency scaling, and even a creative 'fan-tenna' built from a household fan.