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F Launch vehicles
Problems and proj ects for further exploration
A Addresses of film distributors
absolute magnitude acceleration Activity Aeronautics and Space apparent magnitude atmosphere atom AUDIOVISUAL AIDS Basic astronomy text binding energy bright chemistry color decay Demonstration diagram Discusses distance Earth electrical electromagnetic electron elements emitted escape velocity evolution film force fossil fusion galaxies gases gravity H-R diagram high school student Holt hydrogen inverse-square law law of motion light living things lunar surface magnetic mass material McGraw-Hill Book measurement metric system miles million Modern Learning Aids molecule Moon NASA National Aeronautics neutrons nuclear reactions nucleus object orbit origin oxygen parallax parsec particles physics planetary planets PROBLEMS AND PROJECTS PROJECTS FOR FURTHER protein protons radiation radio radioactive radioactive decay Rinehart & Winston rocket satellite sidereal period solar system Space Administration space science spectra spectral class spectroscope speed stars stellar stellar evolution STUDENT BIBLIOGRAPHY TEACHER BIBLIOGRAPHY temperature theory topics triangle tube U.S. Government Printing Unit universe wavelength York