Fact-sheet on the topic of friction -- it covers limiting friction and angle of friction.
Ice Core Gateway: Vostok Ice Core CO2 Data
The Vostok ice core has a long record of global carbon dioxide concentrations, with variations caused by factors other than photosynthesis and human activity. Ice core data sets from three different authors are available for download. Users can also link to other NOAA paleoclimate projects and information.
Scientist Uses Tombstones to Track Environmental Changes
This National Geographic News article discusses how a scientist uses tombstones to track environmental changes. Geomorphologist Tom Meierding visited more than 700 cemeteries and measured 15,000 tombstones to see what kind of environmental changes they might reveal.
Runaway Greenhouse Effect Exercise
This activity, Runaway Greenhouse Effect Exercise, discusses "Why is Venus so much hotter than the Earth?" This is a collaborative problem-solving exercise about the greenhouse effect on Venus. Students role-play biologists, coal geologists, space warfare experts, astronomers, pollution-control scientists, and hydrophysicists. Each student gets a copy of the appropriate briefing sheet (there are 6) containing some information important to solving the problem, much of it quantitative. On this Sta
Lessons in Technology
Rutgers School of Engineering provides numerous laboratory and lessons for grades 5-8. Lessons fall into three categories Civil and Environmental Engineering, Biocomplexity and Biocomplexity and Microorganisms. Some lessons include objectives, standards, materials and other relevant information. Laboratories are well described and can be easily adjusted for higher grade levels.
The Great Energy Debate
The National Geographic Society's global energy debate lesson plan explores the controversial issues surrounding the energy debate in the United States. Students will research recent initiatives being taken in this area and analyze their implications. They will then assume the roles of pivotal stakeholders in this debate and testify to a mock congressional committee responsible for making decisions about public lands and energy resources. This Starting Point website describes the learning goals
Human Tube, A
Against a background of high-rises and rubble, the image of a young man running across an empty lot is repeated. A sense of urgency builds. Buildings explode and crumble to the ground. A hand-held camera surveys the moving ground. Images are blurred, erased, distorted, replaced, and repeated to create this dramatic short work by Paul Garrin. Dramatic electronic music was composed and performed by Ryuichi Sakamoto.The piece is approximately five minutes in length and was broadcast as a segment of
You are about ready to start observing and tracking sunspots across the Sun using real images. You can then use this information to determine the rate of the Sun’s rotation.
Introduction to Physical Oceanography
This book is written for upper-division undergraduates and new graduate students in meteorology, ocean engineering, and oceanography. After reading this book, it expected that students will be able to describe physical processes influencing the ocean and coastal regions: the interaction of the ocean with the atmosphere, and the distribution of oceanic winds, currents, heat fluxes, and water masses.
Learn about wolf ecology by living the life of a wild wolf in Yellowstone National Park. Play alone or with friends in on-line multiplayer missions, explore the wilderness, hunt elk, and encounter stranger wolves in your quest to find a mate. Ultimately, your success will depend on forming a family pack, raising pups, and ensuring the survival of your pack. The WolfQuest experience goes beyond the game with an active online community where you can discuss the game with other players, chat with w
This is an on-line resource on topics of Applied Calculus, including on-line tutorial sessions.
Show Me a Picture and I'll Tell You a Story: Web Photo Journals
Students analyze and evaluate "photo journal" web sites, then create their own Web-based photo journal.
This Web site from the National Center for Biotechnology Information (NCBI) offers a set of detailed tutorials to help users make full use of NCBI's bioinformatics tools. The tutorials, which target both new and veteran users, cover NCBI's BLAST and PSI-BLAST, Entrez data retrieval system, Cn3D molecular structure software, and more. Additionally, the Science Primer tutorial offers a "basic introduction to the science underlying NCBI resources" geared more toward the general reader.
Building Molecular Models of DNA, Protein, and Lipids
Molecular models of DNA, protein (alpha-helix and beta-pleated sheet), and lipids are built to scale. With a minimum of scientific jargon, these laboratory exercises effectively display the important aspects of three-dimensional shape and spatial orientation that are poorly presented in textbook illustrations and demonstrate how the shape of molecules and weak chemical associations like hydrogen bonds and hydrophobic/hydrophilic interactions combine to form the macromolecular associations fundam
Annually Occurring Aerosol Features: Biomass Burning in Southern Africa from July to September 1986
Aerosol index over Africa from July 2, 1986 through September 7, 1986 as measured by the Nimbus-7 Total Ozone Mapping Spectrometer (TOMS)
MODIS Snow Cover over Europe
The Moderate Resolution Imaging Spectroradiometer (MODIS) provides data in 36 spectral bands, some of which are used in an algorithm to map global snow cover. The animation shows the dynamic behavior of the advance and retreat of continental snow cover over Europe for the winter of 2001-02 from MODIS-derived 8-day composite snow maps with a spatial resolution of about 5 km.
SeaWiFS Biosphere: Pacific Ocean
Viewing the Pacific Ocean (data begins at Sept. 97 to June 99)
Antarctic Ozone from Earth Probe TOMS: June 1998 through December 1998
Total ozone measurements from Earth Probe TOMS over Antarctica for the period June 1998 through December 1998
AIRS Volumetric Cloud Data (Fly In)
This visualization shows Aqua-AIRS simulated volumetric cloud data for September 13, 1999. The data was created using the Finite Volume Community Climate Model (FVCCM). Temperature and cloud data sets were match rendered for cross dissolves in post production. This visualization was created as a part of the Aqua prelaunch package.
Earth Today 1998
The ability to see Earth from space has forever changed our view of the planet. We are now able to look at the Earth as a whole, and observe how its atmosphere, oceans, land masses, and life interact as global systems. Earths atmosphere, hydrosphere, geosphere, and biosphere are dynamic, changing on timescales of days, minutes, or even seconds. Monitoring the Earth in near real time allows us to get an up to date picture of conditions on our planet. More SVS visualizations for the Earth Today ex