Science

Promotes research and practical application of findings in soil science and information and technology exchange. Newsletters, student information, contacts and links.

Abstract from a university lecture describing the physical and chemical effects of liming on different soil types.

A large collection of information ranging from soil test interpretation to prevention of nutrient deficiencies.

Principles and Techniques is a presentation on Soil Survey photography. [PowerPoint Presentation]

Lists soil surveys, survey programs, soil survey technology, standards, data and references.

A set of images to illustrate the soils of the arid part of Israel. Includes a description list of the soil groups in English and Hebrew. Also available is a conversion table from Dan's to both the USDA and FAO classification systems.

Open access archive for papers related to research in organic agriculture.

Monthly magazine covering commercial-scale organic and sustainable agriculture.

The Rodale Institute offers a free online course for conventional farmers who want to transition to organic and provides information for consumers to help promote organic farming.

Information about the European transnational research cooperation project supported by the European Commission. This project runs for three years, 2010-2013 and is coordinated by ICROFS.

Denies the Big Bang theory and claims that the universe is of infinitely replicated fractal structure.

A new explanation of both the universe and gravity, based on the second law of thermodynamics, with no big bang, inflation, dark materials or singularities. A downloadable ebook by Edmund Wood.

Construction of reflector, refractor, and mini solar cam with images, and astro images.

Simple and proven techniques that most appropriate for the beginner and the novice mirror and telescope makers.

Observatory, equipment, gallery, tips, and links.

Gallery with photo details. Provides local sunset times for southern hemisphere cities.

Gallery, images, equipment, and accessories.

Information on basics, equipment, what to see, astrophotography, and links.

Guides for getting started in astronomy.

Tips for getting started in astronomy.

Newsgroups with general, solar, and UK astronomy news groups.

General, observing, imaging, equipment, news, clubs, and education.

Amateur astronomy with webcams. Also illustrated lessons and photos in 3D.

Links to astronomy and physics sites.

Resources, discussions and information about Meade ETX astro telescopes.

Varun Khetarpal's astronomy and space travel blog.

Beginner's advice and articles, and telescope, eyepiece and accessory reviews.

Issued twice a month, and describes all space launches, including piloted missions and automated satellites.

Satellite information, ISS information, ISS software, NASA Live TV, images, Kepler data, and links.

Interactive planetarium that can produce maps for any time and date, viewpoint, and observing location.

Location, facilities, dates, rules, photos, and registration information.

Presents information on aberrations, obstruction effects, and reflecting, refracting, and catadioptric objectives, and the eyepiece and eye.

A major information source, with projects, detailed technical information, links to related sites, listings of societies.

Software to design a vertical (wall mounting) sundial for walls that face up to 60 degrees away from due-south.

Shareware and freeware software for design and planning for the most popular.

Contains both original data and descriptions for NASA's past missions to explore the cosmic background radiation, notably about the Cosmic Background Explorer (COBE) satellite.

Homepage of the Wilkinson Microwave Anisotropy Probe, a NASA satellite launched in 2001. The goal of WMAP are precision measurements of the cosmic microwave background, the "electromagnetic echo" of the big bang phase of the early universe.

Description of dark matter, its properties and consequences. Includes texts, plots, graphs and schematics. By Martin White (University of California, Berkeley).

Lecture notes by Shinji Tsujikawa (Univ. of Tokyo) about the basic concepts of inflation, the generation of density perturbations, and the mechanism for reheating after inflation. Based on lectures given at The Second Tah Poe School on Cosmology in 2003.

The Double Star Library hopes to be a means by which various types of binary and multiple star information can be easily disseminated among binary star astronomers in IAU Commission 26 and related commissions.

Sternberg Astronomical Institute - Moscow, Russia.

Windows software for generating eclipse maps for solar eclipses from 3000BC to 3000AD

A list of hyperlinks to various articles on eclipses, comets, novae, and meteor showers that were seen in ancient times.

Provides predictions for grazing occultations of stars by the Moon and predictions for occultations of stars by asteroids and planets, information on observing equipment and techniques, and reports to the members of observations made.

The modern version of panspermia, Cosmic Ancestry treats all of evolution, not just the origin of life on Earth.

Encyclopedia article summarizing the concept.

Quasars are not black holes, they are laser stars within our galaxy.

Catalogue of biographical links covering hundreds prominent astronomers, past and present. [Also in German]

Brief biographies, photos, and links to winners of this annual award for lifetime contributions to astronomy.

A news release that includes photos and videos.