Spherical Analyzer

Play around with changing the numbers in the Analyzer inputs below and clicking "Run" until the particle travels all the way through without hitting either side. Click "Clear" if you want to erase the paths of past attempts.
Voltage (0-2000): Mass (amu): Ion Charge (e):
Start Pos (-2.5-2.5 mm): Velocity (km/sec):
SWICS Instrumentation Page

ACE Instrumentation Page

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Ammonite Pendant

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SWICS Instrument Page

The SWICS (Solar Wind Ion Composition Spectrometer) instrument on Ulysses is to measure the frequency of occurence, temperature and mean speed of all the major solar wind ions, from Hydrogen through Iron....more

ACE Instrumentation Page

The ACE spacecraft consists of a two-deck irregular octagon, about 1.6 meters (65 inches) across and about 1 meter (40 inches) high. Eight of the scientific instruments which measure a variety of particle...more

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Professional Development at NSTA and other conference venues The National Earth Science Teachers Association offers dozens of teacher professional development workshops on topics in Earth and space science...more

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Generous sponsorship of Windows to the Universe is provided by the Hewlett Foundation, the American Geological Institute, the American Geophysical Union, the National Science Foundation, NASA, NCAR, and the CISM and CMMAP projects. NASA CMMAP AGU CISM NCAR Hewlett AGI NSF