Current State of Near-Earth Environment

Space Weather: http://www.spaceweather.com/ Hourly Auroral Activity: http://solar.uleth.ca/www/aurora.html

Constituents of matter, atomic nuclei and elementary particles

Nuclear Science Wall Chart: http://www.lbl.gov/nsd/education/ABC/wallchart/index.html The ABC's of Nuclear Science: http://www.lbl.gov/abc The Particle Adventure: http://particleadventure.org/index.html High Energy Particle Glossary: http://www2.slac.stanford.edu/vvc/glossary.html

Acceleration of charged particles, energy units

Interactions of energetic particles, generation of air showers

Air Showers (Research site): http://crdlx5.yerphi.am/proj/ani-a217.html KASCADE Experiment: http://ik1au1.fzk.de/KASCADE_home.html  General Information: http://www-hfm.mpi-hd.mpg.de/CosmicRay/Showers.html Neutrinos from Horizontal Air Showers: http://hepunx.rl.ac.uk/minos/hypertext/horizontal.html Extensive Air Showers: http://www.nucleonics-online.com/6f13.html

Detection of energetic particles

Particle Detection: http://www2.slac.stanford.edu/vvc/detectors.html Scintillations Detectors: http://msiw02.msi.se/diploma/Scintillation/scintdet.html

Statistics and sampling

Principles of data acquisition and data analysis

Global Positioning System (GPS)

How GPS Works: http://www.trimble.com/gps/fsections/aa_f3.htm Articles, background information, products: http://www.gpsworld.com US Navy GPS Timing Operations: http://tycho.usno.navy.mil/gps.html NAVSTAR GPS Joint Program Office: http://gps.laafb.af.mil How a GPS Receiver Works: http://www.howstuffworks.com/gps1.htm JPL GPS Plate Motion Time Series:  http://sideshow.jpl.nasa.gov/mbh/series.html

Graphical representation of data, Geographic Information Systems (GIS)