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)
https://n7kom.com/
N7KOM is the personal site of a Pacific Northwest ham radio operator specializing in QRP portable operations and Summits On The Air (SOTA) activations. Visitors will find a QRP trap kit build guide, a getting-started SOTA resource, and links to a YouTube channel, stickers, and the Cascadia Radio Discord community.
https://eznec.com/
EZNEC is a widely used antenna modeling and analysis software package created by Roy Lewallen (W7EL), now available for free as EZNEC Pro+ v7.0. The site provides downloads, documentation, FAQs, and detailed information about the software's NEC-based calculation engines for modeling antenna radiation patterns and wire configurations.
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://macastro.org.au/
The Macarthur Astronomical Society serves amateur astronomers in Sydney's south west, offering field nights at multiple observation sites, astro imaging workshops, citizen science projects, and a Deep Space Hunt program. With resources like the Messier and Caldwell lists, ISS tracking, sky conditions, and a 2028 Solar Eclipse planning page, this is a well-rounded hub for a genuinely active local astronomy club.
https://www.qsl.net/wb4kdi
Dave J. Barnes, callsign WB4KDI, maintains this amateur radio site covering radio equipment notes, operating notes, digital modes, and DX beacons. It also includes band condition monitoring tools and an online resources index, making it a handy reference for fellow ham radio enthusiasts.
http://cyclonejim.com/
Dedicated to the late storm chaser Jim Leonard (1950-2014), known as Cyclone Jim, this site serves as a memorial and archive for his decades-long career intercepting hurricanes and typhoons around the world. Visitors can explore his biography and access his extensive stock video and photo collection through his YouTube channel, with licensing information available for professional use.
https://joshworth.com/dev/pixelspace/pixelspace_solarsystem.html
Created by Josh Worth, this site presents a scale model of the solar system where the Moon is reduced to a single pixel, requiring visitors to scroll endlessly through vast empty space to appreciate the true distances between planets. The experience is both humbling and educational, with witty commentary along the way and the ability to toggle between kilometers, miles, AU, and other quirky units of measurement.
https://do1mj.de/
Marc, callsign DO1MJ, documents his amateur radio journey after earning his license in January 2022, with a strong focus on SOTA (Summits on the Air) activations across Germany, Slovenia, and beyond. Posts cover field equipment, Yaesu radio tips, mountain hikes combined with radio activations, and practical techniques for lightweight portable operating.
https://eyesonjason.com/storm_chasing.html
Jason Searle, an optometrist and storm chaser, runs this hub dedicated to severe weather experiences, featuring a storm blog, video gallery, photographs, radar tools, and a storm glossary. It blends the thrill of firsthand storm chasing with practical resources for weather enthusiasts.
Home - WCARES
NEW!
https://mnwashcoares.org/
WCARES is the Washington County, Minnesota chapter of the Amateur Radio Emergency Service (ARES), coordinating licensed ham radio operators to support county emergency management during floods, severe weather, and mass sheltering events. The site outlines their mission, coverage priorities, and lists key leadership with callsigns, serving as a hub for emergency communication volunteers in the St. Croix River valley region.