"The Astromaterials Acquisition and Curation Office at the Johnson Space Center is tasked to curate NASA's current and future collections of extraterrestrial samples." The website divides the collections into six categories: Rocks and Soils from the Moon, Meteorites from Antarctica, Stratospheric Dust, Solar Wind, Space-Exposed Hardware, and Stardust Mission Samples. Besides learning how to receive and return the samples, users can find newsletters and information on discoveries made using the s
Jen's home of multicultural math games
This website includes descriptions of three mathematical games from different cultures: Mancala, a counting game from ancient Egypt; Rithmomachia, a 'battle of numbers' board game dating back to 1150 and used by Roger Bacon to teach arithmetic; and To-pe-di, a Native American game of chance. Each game is illustrated. Other terms: geometry, Boethius, Pythagorean number theories, dice sticks. (Includes 5 references)
Water reclamation plant (RealVideo)
In this video clip, students see how wastewater is treated at a water reclamation plant. One of the plant's operators gives Bob the Vid Tec (a children's programming host) a tour of the plant, describing along the way what happens at each step in the water treatment process. For example, the operator explains that microorganisms are used to consume human waste in the biological nutrient removal step. Bob also talks with another plant operator about why kids should learn about wastewater treatmen
A Spectral Mystery
Students use the spectrograph from the “Building a Fancy Spectrograph” activity to gather data about light sources. Using their data, they make comparisons between different light sources and make conjectures about the composition of a mystery light source.
Barriers and Motivators for Using OER in Schools
Barriers and Motivators for Using OER in Schools
Mammoth Cave National Park DVD Postcard Highlights
This video provides highlights from Mammoth Cave National Park DVD Postcard. It includes beautiful footage by Russ Finley edited to inspiring music. The best of Mammoth Cave - majestic tunnels, interesting formations, scenery, and more. In a ready-to-mail mailer for family and friends! The full DVD is available on location and from www.finleyholiday.com. (06:20)
Introduction to Scanning Probe Microscopy
This learning module teaches the principles behind scanning tunneling microscopy and atomic force microscopy. The module includes example applications and ample literature citations.
GC Splitless Injection Animation
This site is one in a series of sites with very good animations related to separations. This animation deals specifically with splitless injection in GC. The animations are short (one to two minutes) and can easily be shown in class as part of a lecture. They are extremely helpful in illustrating key components and concepts of chromatographic systems. Users are encouraged to explore the site and the other brief animations as well. Separate links to other simulations by the same company (TRSL) ar
Basic Electronic Tutorials On AC, DC, Semiconductor, and Digital Theory
This website serves as an excellent tutorial on basic AC and DC electronics, semiconductor operation and digital theory. Experiments are included to illustrate these concepts. The material is sufficiently comprehensive and is highly recommended as a starting point for students interested in learning about basic electronics.
Introduction to Signals and Noise: eLearning Module
Basic concepts of signals, noise, and extraction of data from noisy signals are presented as an e-learning module. Excel spreadsheets allow students to vary noise parameters. Basic electronics ideas relating to RC circuits support introductory information on filters
Multiple Sclerosis - Reflexes Exam - Muscle Stretch Sub-exam - Patient 16
Shelly is a 38-year-old African American female who initially presented with transverse myelitis 2 years ago. A lumbar puncture revealed multiple oligoclonal bands in the cerebral spinal fluid. MRI has demonstrated numerous plaques in the bilateral cerebral white matter. She eventually went on to recover from her initial attack but since her second attack has continued to progressively worsen. Her gait and other motor functioning have deteriorated and she is now wheelchair bound.
Next Steps After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
Nobel Peace Prize Documentary, Obama, 2009.mp4
In this short video excerpt about President Barack Obama, Nobel Peace Prize Laureate 2009, member of administration, politicians, former co-workers and the Chairman of the Nobel Committee discuss the debate about awarding the Nobel Peace Prize to President Obama. To see the full version: http://nobelprize.org/mediaplayer/index.php?id=1552
Blood flow in Lumbriculus
Slow blood flow in Lumbriculus variegates (note the muscle contractions in each body section).
Exploring The Forces of Tension
Students will review their knowledge of tension and focus on tensile loads and failure caused by them.
Floating and Falling Flows
Students discover fluid dynamics related to buoyancy through experimentation and optional photography. Using one set of fluids, they make light fluids rise through denser fluids. Using another set, they make dense fluids sink through a lighter fluid. In both cases, they see and record beautiful fluid motion. Activities are also suitable as class demonstrations. The natural beauty of fluid flow opens the door to seeing the beauty of physics in general.
Introduction to Statistics
Introduction to Statistics. Random Variable, Mean, Variance, Standard Deviation and Mathematical Expectation. Discrete Distributions: Bernoulli trials and Bernoulli distribution, geometric distribution, Poisson distribution. Continuous Distributions: random variables of the continuous type, uniform distribution, exponential distribution, gamma distribution, chi-square distribution, normal distribution, t-distributions. Estimation: biased and unbiased esimators, convidence intervals for means, co
Music and sound are two different concepts that share much in common. Determining the difference between the two can sometimes be difficult due to the subjective nature of deciding what is or is not music. The goal of this activity is to take something constructed by students, that would be normally classified as just sound and have the class work together to make what can be perceived to be music. Students will construct a basic stringed instrument made of a shoebox and rubber bands. This activ
Francis Alÿs: A Story of Deception, On View at MoMA
May 8-August 1, 2011 For more information please visit MoMA.org Video courtesy of the artist