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://warc1.org/
The Wichita Amateur Radio Club (WARC) has been serving Kansas ham radio enthusiasts since 1932, making it one of the longer-running amateur radio clubs in the region. The site features news about Field Day operations, repeater information, licensing resources, and club activities including visits from Wichita's mayor during Amateur Radio Week.
https://electronics2000.co.uk/
Electronics 2000, created by Simon Carter, is a comprehensive hobby electronics reference packed with online calculators for resistors, capacitors, inductors, Ohm's Law, and more, plus technical data articles, pin-outs, and a beginner's guide. The site also offers downloadable Windows software like Electronics Assistant and an EPE Index, making it a genuinely useful toolkit for hobbyists, students, and engineers alike.
https://heavens-above.com/?Lat=35.60
Heavens-Above, developed by Chris Peat, provides real-time satellite tracking and customized astronomical predictions based on your geographic location, including ISS passes, Starlink visibility, and deep space mission data. The site also offers interactive sky charts, solar eclipse information, comet and asteroid tracking, and a full satellite database spanning dozens of spacecraft.
https://ai5.mx/
Michael Burkhardt (AI5MX) runs this personal ham radio blog covering gear reviews, operating logs, QSL cards, Morse code adventures, and FCC news. Visitors will find mirrored Mastodon microposts, downloadable resources, and a genuine indie-web spirit connecting the amateur radio community.
https://qsl.net/lu2ee
A QSL.net-hosted page for the amateur radio callsign LU2EE, indicating an Argentine ham radio operator with a personal station page. The site appears to be a file directory index, likely containing logs, images, or station information typical of ham radio operator pages on the QSL.net network.
https://projectpluto.com/
Project Pluto offers a suite of astronomical software tools for both amateur and professional astronomers, including the well-known Find_Orb orbit determination software, Sat_ID for identifying artificial satellites, and the Guide star charting DVD. The site provides free online versions of many tools alongside downloadable software, C/C++ source code, and reference resources like lunar phase calendars and asteroid observer tools.
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.
http://atm-workshop.com/
John D. Upton's comprehensive resource for amateur telescope makers (ATMs) covers tips, techniques, and projects spanning optics grinding, metalworking, woodworking, electronics, and astrophotography. Built over two decades of hands-on experience, the site documents the rewarding crossover hobby of crafting your own telescopes and specialized astronomy accessories from scratch.
https://tornadobob.com/
Bob Conzemius documents his storm chasing and aurora hunting adventures on this personal site, which includes dedicated sections for aurora chases, storm chases, and weather research. The dual focus on severe weather and Northern Lights photography makes it a unique destination for weather enthusiasts and aurora chasers alike.