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://butikov.faculty.ifmo.ru/Projects/Collection.html
Created by physicist E. Butikov of IFMO, this collection presents interactive Java applets simulating remarkable three-body gravitational motion problems, including the famous figure-eight periodic orbit and restricted three-body scenarios. It bridges classical Newtonian mechanics and celestial mechanics with hands-on simulations suitable for students and advanced researchers exploring planetary system dynamics.
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.
http://astroa.physics.metu.edu.tr/bigeyes.html
A comprehensive reference table listing the world's largest optical telescopes, compiled by Bill Arnett and hosted at Middle East Technical University's physics department. Each entry includes the telescope's aperture, name, geographic coordinates, altitude, and technical notes, making it a handy quick-reference for astronomy enthusiasts and researchers.
https://rc-astro.com/photography.php
Russell Croman's astrophotography site showcases stunning deep-sky images including nebulae, galaxies, star clusters, and solar system objects captured with professional-grade equipment. With sections organized by celestial type and additional resources on equipment and publications, this is a richly curated portfolio of night-sky photography spanning over two decades.
https://pages.mtu.edu/~jaszczak/graphite.html
John A. Jaszczak, a physicist at Michigan Technological University, has compiled a comprehensive reference on graphite mineralogy covering crystal structures, properties, spirals, spherical forms, and notable localities from around the world. The site features atomic force microscopy images, links to published research papers, and detailed documentation of unusual graphite occurrences including cones, pseudocubes, and meteoritic graphite.
https://rep.pt/
The Rede dos Emissores Portugueses (REP) is Portugal's national amateur radio association, founded in 1926 and a member of the IARU since 1933, representing ham radio operators across Portugal, the Azores, and Madeira. The site offers a repeater network directory covering VHF/UHF FM, DMR, D-Star, Echolink, and more, alongside news, contests, licensing information, and regulatory resources from ANACOM.
http://sffma.net/
The South Florida FM Association (SFFMA) is a Miami-area amateur radio club operating multiple repeaters across the region, with real-time emergency status information and a live audio feed of their 147.000 MHz repeater. The site includes repeater listings, meeting schedules at the Miami-Dade EOC, member resources, and photo galleries of their tower and equipment installations.
http://drydredgers.org/
The Cincinnati Dry Dredgers claim the title of the oldest continuously-operating fossil club in North America, bringing together amateur geologists and fossil collectors in the Cincinnati area since their founding. The site features extensive fossil identification guides for trilobites, crinoids, echinoderms, brachiopods, and more, plus field trip photos, member activities, and resources for finding Ordovician-era fossils in the region.
http://meteor.iastate.edu/~ckarsten/bufkit/image_loader.phtml?site=ksea&%3Bnam=on&%3Bnam_mos=on&%3Bnamm=on&%3Bgfs_mos=on&%3Bgfs=on&%3Bgfsm_mos=on&%3Bgfsm=on&%3Bnws=on&%3Brap=on&%3Bobs=on&%3Bnam4km=on&%3Bcon=on&%3Bratio=11&%3Bmax_t=on&%3Bcobb=on&%3Bcompaction=on&%3Bmean_mt=on&%3Bmax_mt=on&%3Bmean=on
Hosted at Iowa State University, this Meteogram Generator produces hour-by-hour weather forecast charts for locations like KSEA (Seattle) by pulling data from multiple numerical models including NAM, GFS, RAP, and their MOS variants. Visitors can configure plots for temperature, dewpoint, wind speed, precipitation, snow accumulation, and more, then compare model output side by side across an extended forecast period.
https://pnwherbaria.org/
The Consortium of Pacific Northwest Herbaria is a collaborative portal uniting 60 regional herbaria across Alaska, British Columbia, Oregon, Washington, Idaho, Montana, and the Yukon, offering access to over 3.6 million plant specimen records and nearly 1.8 million images. Researchers and naturalists can search the database by label data or geographic location, download datasets for offline use, and consult a fully annotated checklist of vascular plants native to the Pacific Northwest.