Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time.
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
|Is it a tumor? Magnetic Resonance Imaging (MRI) can tell. Your head is full of tiny radio transmitters (the nuclear spins of the hydrogen nuclei of your water molecules). In an MRI unit, these little radios can be made to broadcast their positions, giving a detailed picture of the inside of your head.|
Sample Learning Goals
- Recognize that light can flip spins if the energy of the photons matches the difference between the energies of spin up and spin down.
- Recognize that the difference between the energies of spin up and spin down is proportional to the strength of the applied magnetic field.
- Describe how to put these two ideas together to detect where there is a higher density of spins.
Tips for Teachers
The teacher's guide (pdf) contains tips created by the PhET team.
|Undergrad MRI Workshop Activity||Paul Kinghorn||UG-Intro
|Visualization and Visual Illusions SIM Homework||Kathy Perkins, Carl Wieman||UG-Intro||HW||1/9/11|
|MRI lecture and homework||Sam McKagan, Kathy Perkins, and Carl Wieman||UG-Intro
You can submit your own ideas and activities.
Sun Java 1.5.0_15 or later
OS 10.5 or later
Sun Java 1.5.0_19 or later
|Sun Java 1.5.0_15 or later|
|Design Team||Third-party Libraries||Thanks To|
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