With your mouse, drag data points and their error bars, and watch …
With your mouse, drag data points and their error bars, and watch the best-fit polynomial curve update instantly. You choose the type of fit: linear, quadratic, cubic, or quartic. The reduced chi-square statistic shows you when the fit is good. Or you can try to find the best fit by manually adjusting fit parameters.
DASHlink is a virtual laboratory for scientists and engineers to disseminate results …
DASHlink is a virtual laboratory for scientists and engineers to disseminate results and collaborate on research problems in health management technologies for aeronautics systems. Managed by the Integrated Vehicle Health Management project within NASA's Aviation Safety program, the Web site is designed to be a resource for anyone interested in data mining, IVHM, aeronautics and NASA.
Your body is made of cells -- but how does a single …
Your body is made of cells -- but how does a single cell know to become part of your nose, instead of your toes? The answer is in your body's instruction book: DNA. Joe Hanson compares DNA to detailed manual for building a person out of cells -- with 46 chapters (chromosomes) and hundreds of thousands of pages covering every part of you.
This 3D animation shows you how DNA is copied in a cell. …
This 3D animation shows you how DNA is copied in a cell. It shows how both strands of the DNA helix are unzipped and copied to produce two identical DNA mole...
This visualization tool shows sea ice data from 1978 to the present. …
This visualization tool shows sea ice data from 1978 to the present. Selected data can be animated to show changes in sea ice extent over time. Data is added by the National Snow and Ice Data Center as it becomes available.
Simulate the original experiment that proved that electrons can behave as waves. …
Simulate the original experiment that proved that electrons can behave as waves. Watch electrons diffract off a crystal of atoms, interfering with themselves to create peaks and troughs of probability.
Are you ready to face a day in and out the office …
Are you ready to face a day in and out the office facing some of the challenges that confront social workers? You'll have to manage your time, avoid getting pulled off track - and take part in a case conference and home visit. Need help? You can find out about the job through extracts from the BBC/OU programme Protecting Our Children.
A demonstration (with full class participation) to illustrate radioactive decay by flipping …
A demonstration (with full class participation) to illustrate radioactive decay by flipping coins. Shows students visually the concepts of exponential decay, half-life and randomness. Works best in large classes -- the more people, the better.
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Why do objects like wood float in water? Does it depend on …
Why do objects like wood float in water? Does it depend on size? Create a custom object to explore the effects of mass and volume on density. Can you discover the relationship? Use the scale to measure the mass of an object, then hold the object under water to measure its volume. Can you identify all the mystery objects?
Why do objects like wood float in water? Does it depend on …
Why do objects like wood float in water? Does it depend on size? Create a custom object to explore the effects of mass and volume on density. Can you discover the relationship? Use the scale to measure the mass of an object, then hold the object under water to measure its volume. Can you identify all the mystery objects?
Dr. Thomas Hickson (University of St. Thomas) and Karen Campbell (National Center …
Dr. Thomas Hickson (University of St. Thomas) and Karen Campbell (National Center for Earth Surface Dynamics) developed a small, two-dimensional deltaic sedimentation model for the Teaching Sedimentary Geology workshop. This page provides a complete exercise and construction plans to build your own desktop delta.
(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)
Ana Donevska Todorova Humboldt Universitﾊt zu Berlin Mathematisch-Naturwissenschaftliche Fakultﾊt II Institut fﾟr …
Ana Donevska Todorova Humboldt Universitﾊt zu Berlin Mathematisch-Naturwissenschaftliche Fakultﾊt II Institut fﾟr Mathematik, Didaktik der Mathematik ??? ?????????? ?????? ???????? ?? ???????????? ????? ? ????
Explore how molecules can cross a cell membrane and learn about the …
Explore how molecules can cross a cell membrane and learn about the nature of their movement. Set up the model with high oxygen and low carbon dioxide outside the cell and low oxygen and high carbon dioxide inside the cell. In which direction do the oxygen and carbon dioxide molecules move?
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