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://rckara.org/
The RCKARA (likely Reno County Kansas Amateur Radio Association) maintains this site as a hub for their amateur radio club, featuring meeting minutes, hamfest announcements, and member activities. Visitors will find detailed records of club business including repeater trustee reports, WSPR balloon tracker experiments, and links to ARRL News and NOAA Space Weather.
http://amasci.com/amateur/traffic/traffic1.html
William J. Beaty, a Seattle electrical engineer, explores the fascinating physics of traffic jams, showing how waves propagate through congested highways much like fluid dynamics. The site features animations, experiments, and practical techniques for how a single driver can actually dissolve traffic slowdowns, making it a genuinely mind-expanding read for any commuter.
http://zl2ctm.blogspot.com/2025/01/40m-pelican-case-ssb-trabsceiver.html
Charlie Morris (ZL2CTM) documents his amateur radio homebrew experiments, including this detailed post on building a 40m SSB transceiver housed in a Pelican case, complete with Arduino code for the Si5351 VFO and LCD control. The blog covers hands-on RF construction projects with schematics, code snippets, and supporting YouTube videos, making it a great resource for homebrewers interested in building their own transceivers.
https://solar.lowtechmagazine.com/
Low-tech Magazine is a solar-powered publication that challenges high-tech assumptions by exploring low-energy, sustainable, and often obsolete technologies as practical alternatives to modern power-hungry solutions. Visitors will find detailed DIY guides for solar-powered appliances, historical analyses of pre-industrial techniques, and thought-provoking essays on energy, heating, cooking, and sustainable living.
https://spacew.com/
Solar Terrestrial Dispatch is a 36-year-old space weather service offering near real-time auroral activity mosaics, solar wind data, X-ray flux readings, and experimental flare prediction heatmaps updated every two minutes. Visitors can track geomagnetic conditions, monitor the electrical power grid demand, and view stunning satellite imagery of aurora activity over both hemispheres.
http://trx-manager.com/
TRX-Manager, created by Laurent F6DEX, is a CAT control, DXing, and logging software package supporting nearly 150 transceivers including models from Yaesu, Kenwood, Icom, and Elecraft. Though distribution has been discontinued, the site still provides updates for registered users and bilingual support in both English and French.
https://astronomy-links.net/SETI_Battleship.html
Clark M. Thomas offers a witty essay examining the movie Battleship through the lens of real SETI science, exploring the plausibility and implications of contact with extraterrestrial civilizations. The piece weaves together astronomy, pop culture criticism, and philosophical musings about what our radio and TV signals might reveal to any alien observers.
http://netside.net/starhustler
The official web home of 'Star Gazers,' the world's only weekly PBS television series dedicated to naked-eye astronomy, hosted by the legendary Jack Horkheimer. Visitors can stream current and past video episodes, browse show scripts, read FAQs, and find local astronomy clubs and planetariums.
https://dendroica.blogspot.com/
Dendroica is a long-running nature blog with hundreds of posts spanning years of birding, moth-watching, and wildlife observation, named after a genus of wood-warblers. The archive stretches back many years with consistent weekly updates including a recurring 'Loose Feathers' series, and the blogroll connects to a rich community of birding and entomology blogs.