Science & Nature
1413 sites
Subcategories:
- Astronomy & Space (390)
- Chemistry (7)
- Earth Sciences (24)
- Biology (76)
- Physics (29)
- Mathematics (51)
- Weather & Climate (100)
- Amateur Radio (681)
- Electronics (45)
http://bas-astro.com/
BAS Astro appears to be an astronomy club or society website, with the domain name strongly suggesting a regional or local astronomical association. The site likely serves as a hub for amateur astronomers to share observations, events, and resources.
http://w7zoi.net/
The personal site of Wes Hayward (W7ZOI), a well-known amateur radio engineer and co-author of 'Experimental Methods in RF Design' (EMRFD), featuring technical articles, filter design resources, errata, and glimpses of his ham shack. A rich destination for radio homebrewers and RF enthusiasts, with bonus content covering mountain hikes that incorporated amateur radio operation.
http://hnsky.org/
Home of ASTAP and HNSKY, two free astronomy programs offering image stacking, plate solving, and a full-featured planetarium for amateur astronomers and astrophotographers. The creator also shares their own astrophotography images and equipment details, making this a practical hub for both software users and sky enthusiasts.
https://a.atmos.washington.edu/~ovens/loops/index.loop.html
Hosted by the University of Washington's Atmospheric Sciences department, this tool provides animated weather graphics loops covering radar composites, surface observations, satellite imagery, and forecast model outputs for the Pacific Northwest and beyond. Visitors can customize loop duration and location, making it a practical reference for anyone tracking regional weather patterns in real time.
http://nightskylive.net/
NightSkyLive.net appears to be a site dedicated to live or near-live views of the night sky, likely featuring sky cameras or astronomy broadcasts. The domain name strongly suggests a focus on real-time celestial observation for stargazers and astronomy enthusiasts.
http://nightskyhunter.com/An%20Observing%20Guide%20To%20Comets.html
Created by Martin McKenna of Nightskyhunter.com, this detailed guide covers everything an amateur astronomer needs to observe comets, from naked-eye viewing to advanced astrophotography and scientific contribution through light curve work. The site includes comet sketches, hunting statistics, observing adventure logs, and links to major comet resources, making it a rich reference for anyone fascinated by these unpredictable visitors to our skies.
https://ng3k.com/
Bill Feidt (NG3K) has built a comprehensive amateur radio resource focused on DX operations and contesting, featuring the Announced DX Operations (ADXO) database, DXCC entity tables, packet cluster resources, and propagation forecasts. With archives stretching back to the mid-1990s and regularly updated links to DX tools, contest calendars, and reverse beacon networks, this site is a go-to reference for serious DX and contest operators.
https://journal.seefar.dev/
Chris Farnham (W1YTQ) keeps this detailed journal covering Parks on the Air activations, antenna builds, QRP transceiver projects, and field operations across locations like Minute Man National Park and Peddocks Island. With over forty posts exploring CW/Morse Code operating, Reverse Beacon Network activity, and hands-on radio adventures, it is a rich resource for anyone interested in portable and outdoor amateur radio.
https://harc.net/
The Huntsville Amateur Radio Club (HARC) is a 501(c)(3) nonprofit based in Huntsville, Alabama, dedicated to educating and training members in amateur radio with a focus on emergency communications support. The site offers access to club resources including a newsletter, repeater and net information, a classifieds section, SKYWARN and ARES/RACES emergency programs, and a DX club.
https://workbench.libsyn.com/hrwb-258-morse-code-bug-emulator-with-don-wb9cyy-and-bob-wo6w
Ham Radio Workbench is a podcast and blog dedicated to the maker and experimenter side of amateur radio, covering topics from PCB design and microcontrollers to vintage keys and SDR. This episode features Don WB9CYY and Bob WO6W discussing their ingenious Morse code bug emulator that gives modern paddles the organic, imperfect feel of classic mechanical telegraph keys.