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)
http://echolink.org/
EchoLink is the home of a widely-used software platform that lets licensed amateur radio operators connect with each other worldwide via the internet using streaming audio technology. With over 350,000 validated users across 159 countries and apps available for Windows, Android, iOS, and web browsers, it is a cornerstone tool in the modern ham radio community.
http://rmbr.nus.edu.sg/
The archived web presence of the Raffles Museum of Biodiversity Research (RMBR) at the National University of Singapore, now preserved after the museum was renamed and relocated as the Lee Kong Chian Natural History Museum in 2014. Visitors can explore decades of biodiversity research, newsletters, symposium records, and an extensive 19th-century fauna of Singapore catalog with over 1,700 taxonomic entries.
http://tecsolv.com/cq
A curated collection of links to amateur radio homebrew construction projects on the web, maintained for operators who enjoy building their own equipment from scratch. Aimed at nostalgic ham radio builders who remember the Heathkit era, the site also offers to host new project pages for those without their own web presence.
https://complex-analysis.com/
Created by Juan Carlos Ponce Campuzano, this interactive online textbook introduces complex analysis through visual applets built with GeoGebra, p5.js, and other JavaScript tools, making abstract mathematical concepts tangible and explorable. Covering topics from the Cauchy-Goursat Theorem to conformal mappings, it serves engineering and mathematics students with a beautifully designed, continually updated resource that includes Spanish and Italian translations.
http://curiousskywatcher.blogspot.com/
The Curious Skywatcher is a dedicated astronomy blog offering monthly celestial highlights, including planet positions, meteor showers, and sky-watching tips for amateur stargazers. Posts guide readers on locating stars and planets with the naked eye, making it a friendly and practical resource for anyone wanting to explore the night sky.
https://n1nc.org/
The Nashoba Valley Amateur Radio Club (N1NC) serves ham radio enthusiasts in north central Massachusetts, coordinating events like Field Day, public service communications for the Groton Road Race, and ARES emergency nets. The site features a newsletter archive, officer listings, meeting info, and regular updates on club activities and regional ARES/RACES nets.
https://greensboroastronomyclub.org/
The Greensboro Astronomy Club is a North Carolina-based group dedicated to making astronomy accessible to the public through regular meetings, observing sessions, and educational events. The site highlights upcoming meetings at venues like the Greensboro Science Center, member achievements, and the club's advocacy for preserving astronomy programs at local universities.
http://rgbrown.org/
Robert G. Brown, a physicist at Duke University, shares an extensive collection of free online textbooks, physics study materials, poetry collections, philosophy essays, and beowulf cluster computing resources. The site is a sprawling intellectual hub covering everything from GPL software tools to metaphysics, all freely licensed under an open public license.
https://meteor.iastate.edu/~jdduda/chasing/chasing.html
Jeff Duda's storm chasing log spans a decade of tornado pursuits across the Great Plains and Midwest, with lifetime stats including 71 tornadoes witnessed across 111 total chases and over 52,000 miles driven. Each year links to detailed chase accounts, making it a compelling personal record of one dedicated chaser's adventures in severe weather.
http://collectspace.com/news/news-061209a.html
CollectSPACE covers space history news and milestones, including this detailed article tracking which astronaut became the 500th person to fly into space during the STS-127 shuttle mission in 2009. The site provides a comprehensive numbered list of all 500 spacefarers up to that point, mission by mission, making it a valuable reference for space history enthusiasts.