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://berthub.eu/articles/posts/amazing-dna
Bert Hubert's long-running article explains DNA biology through the lens of a computer programmer, drawing analogies between genetic code and software concepts like error correction, compression, and the halting problem. Originally written in 2001 and revised multiple times since, it became popular enough to spawn a two-hour conference presentation and an upcoming book.
https://www.qsl.net/lz1iii/html/1001link.html
A massive curated directory of amateur radio links maintained by LZ2HM, covering everything from ARRL resources and antenna plans to SSTV, ATV, antique radios, aurora monitoring, and weather resources. With over 1,300 links organized into dozens of categories, it serves as a comprehensive reference hub for ham radio operators of all interests.
http://astrometry.org/
Astrometry.org is an educational resource by Istituto Scientia dedicated to popularizing astrometry and celestial mechanics, two of astronomy's oldest classical branches. Visitors can explore topics like star positions, orbital mechanics, the SAO star catalog, and an online planetarium, with historical context tracing these sciences from ancient Greece through Galileo and Newton.
https://n3vem.com/blog
N3VEM is Vance Martin's ham radio blog covering repeater projects, AREDN mesh networking, antenna builds, and special event stations like the CQ Salk activation. The site documents ongoing technical projects including the Radio Rocket and r4e repeater builds, with posts spanning portable operations, field day, and POTA activities.
https://owlsp.com/stormchaseaccounts.php
OWLSP.com is a storm chaser's personal archive covering tornado and severe weather chase accounts from 2002 through 2023, with detailed entries for specific outbreaks across Oklahoma, Texas, Kansas, and beyond. The site includes chase narratives, photography, equipment info, and landscape scenes, making it a rich firsthand record of Plains storm chasing over two decades.
https://www.qsl.net/dx1cw
The official web home of CW Philippines (Communications World of Amateurs Philippines Inc.), a ham radio club based in Manila that documents DXpeditions to Philippine islands including Batan, Marinduque, and Lubang. The site features expedition photo galleries, contest results, QSL information, membership resources, and articles about amateur radio culture and leadership in the Philippines.
https://vvara.org/index.html
The Verde Valley Amateur Radio Association (VVARA) serves ham radio enthusiasts in north-central Arizona, providing club meeting schedules, net listings, repeater information, and foxhunt resources. Regular nets like the Knobby Knee Net and 60s Trivia Net reflect an active local community, and the site even includes a live weather camera feed from Mingus Mountain.
https://darc.de/home
DARC (Deutscher Amateur-Radio-Club e.V.) is the official national organization for amateur radio operators in Germany, offering member services, licensing information, contest coordination, and club resources. With sections covering HF, VHF/UHF/SHF, emergency communications, DX, and youth training, it serves as a comprehensive hub for the German ham radio community.
https://ifmarc.org/
IFMARC is the official web presence of the Independence FM Amateur Radio Club based in Independence, Missouri, home of the 147.09+ repeater carrying the call sign of late club member Marcell Kurbin (W0TOJ). The site lists club officers, meeting details at St. Mark's United Methodist Church, and contact information for joining the club's email list.
https://cometchasing.skyhound.com/
Comet Chasing, maintained by Skyhound, provides monthly up-to-date observing guides for telescopic comets visible this month, complete with finder charts, observing synopses, and brightness predictions tailored to your latitude and equipment. It covers current comets like Kreutz sungrazers and PANSTARRS discoveries, making it an invaluable tool for amateur astronomers who want to hunt comets visually or through imaging.