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://qsl.net/we1fly
The Aeronautical Mobile Operators Club, callsign WE1FLY, is dedicated to ham radio operators who take their hobby airborne, earning the nickname 'Flyin' Hams.' The site provides resources on operating amateur radio in aircraft, including links to FAA regulations, QRZ.com profile info, and eQSL lookup for members.
https://ifmarc.org/
IFMARC is the official web presence of the Independence FM Amateur Radio Club based in Independence, Missouri, home of the 147.09+ repeater carrying the call sign of late club member Marcell Kurbin (W0TOJ). The site lists club officers, meeting details at St. Mark's United Methodist Church, and contact information for joining the club's email list.
https://cosmotography.com/index.html
Cosmotography is the astrophotography showcase of R. Jay Gabany, a 2010 AAS Chambliss Amateur Achievement Award recipient who captures stunning CCD images of galaxies, nebulae, star clusters, and more using high-end telescopes across multiple observatories worldwide. The gallery features meticulously processed multi-exposure color images taken through remotely controlled observatories in California, Kitt Peak Arizona, and Melbourne Australia, making it a remarkable window into deep-sky imaging at the amateur-professional frontier.
http://k6may.com/
The personal ham radio page of K6MAY, a licensed amateur radio operator whose callsign is registered on QRZ.com, featuring a live UTC clock display and imagery related to Collins radio equipment, railroads, biking, and modeling. The site blends the operator's ham radio identity with glimpses of other hobbies, making it a classic old-web shack page from the amateur radio community.
http://spaceshipone.airshowjournal.com/2004
Fred Bruenjes documents his firsthand experience photographing the historic June 21, 2004 launch of SpaceShipOne, the first privately funded spacecraft to reach space, at Mojave Airport. The site is part of a larger airshow journal covering dozens of air shows across California and beyond, featuring hundreds of original photos from events ranging from Miramar to Oshkosh.
http://mndmr.net/
MNDMR.net is the home of Minnesota's first in-house DMR repeater CBRIDGE network, providing information about connected repeaters, talkgroups, and codeplugs for digital radio users in the region. The site serves the local amateur radio community with resources for the MNSTATE and MNTAC talkgroups on the Brandmeister network.
https://f4iha.fr/
The blog of Olivier (F4IHA), a French amateur radio enthusiast who documents his homebrew radio projects including low-power QRPP transmitters, VFOs, antenna tuners, and fox-hunting modules built with Arduinos and components costing under 30 euros. Posts cover schematics, PCB design in KiCad, measurements, and hands-on construction with detailed technical write-ups that make it a great resource for DIY radio builders.
https://www.was.org.nz/useful-links
The Wellington Astronomical Society maintains this curated links page connecting visitors to astronomy resources across New Zealand and beyond, from national societies to educational tools for children. Organized into regional and international sections, it serves as a handy gateway to observatories, sky guides, STEM activities, and fellow astronomy clubs throughout New Zealand.
https://nzastronomy.co.nz/directory
The New Zealand Astronomy Directory is a comprehensive curated guide to stargazing operators, observatories, and dark sky experiences across New Zealand, from Qualmark-approved planetariums to guided night sky tours on Stewart Island. Visitors can browse listings by region to find observatories, astrophotography tours, and dark sky places throughout both the North and South Islands.
https://epanorama.net/
Tomi Engdahl's ePanorama.net is a vast electronics reference site covering audio circuits, video systems, PCB design, embedded systems, RF, and much more, with hundreds of categorized links and original schematics. The accompanying blog keeps the resource current with news, product tests, IoT coverage, and cleantech topics, making it a go-to hub for electronics hobbyists and engineers alike.