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National Aeronautics and Space Administration S pacM e aX th i This collection of activities is based on a weekly series of space science problems distributed to thousands of teachers during the 2013- 2014 school year. They were intended for students looking for additional challenges in the math and physical science curriculum in grades 3 through 12. The problems were created to be authentic glimpses of modern science and engineering issues, often involving actual research data. The problems were designed to be ‘one-pagers’ with a Teacher’s Guide and Answer Key as a second page. This compact form was deemed very popular by participating teachers. For more weekly classroom activities about astronomy and space visit the NASA website, http://spacemath.gsfc.nasa.gov Add your email address to our mailing list by contacting Dr. Sten Odenwald at [email protected] Image Credits: Front: 1) Orbits of Potentially Hazardous Asteroids (NASA0; 2) Collision of two black holes showing gravity waves (NASA); Density structure of a protoplanetary disk and embedded planet (Credit: Wilhelm Kley, University of Tubingen, Institute for Astrophysics). Back: Three-dimensional visualization of the stellar orbits in the Galactic center based on data obtained by the W. M. Keck Telescopes between 1995 and 2012. Stars with the best determined orbits are shown with full ellipses and trails behind each star span ~15-20 years. These stars are color-coded to represent their spectral type: Early-type (young) stars are shown in teal green, late-type (old) stars are shown in orange, and those with unknown spectral type are shown in magenta. Stars without ellipses are from a statistical sample and follow the observed radial distributions for the early (white) or late (yellow/orange) type stars. These stars are embedded in a model representation of the inner Milky Way provided by NCSA/AVL to provide context for the visualization. (Credit: Fabio Antonini - Canadian Institute for Theoretical Astrophysics, and David Merritt - Rochester Institute of Technology) This booklet was created through an education grant NNH06ZDA001N- EPO from NASA's Science Mission Directorate, and from individual grants from Year of the Solar System, SAGE-III, Van Allen Belts Probe, the Student Cloud Observations OnLine, and the History of Winter programs. Space Math http://spacemath.gsfc.nasa.gov Table of Contents ii Grade Page Acknowledgments i Table of Contents ii Mathematics Topic Matrix v Alignment with Standards xi Letter from the Author xii 1.0 Student Cloud Observations OnLine (S'COOL) Using Proportions to Estimate the Height of a Cloud! 6-8 1 Estimating the Mass of a Cloud! 6-8 2 Cloud Droplets and Rain Drops 6-8 3 How Clouds Form – Working with Rates of Change 6-8 4 Cloud Cover and Solar Radiation 6-8 5 Cloud Cover, Albedo, Transmission and Opacity 9-12 6 Working with Rainfall Rates and Water Volume 9-12 7 2.0 History of Winter Graphing a Snowflake Using Symmetry 6-8 8 The Surface Area of a Snowflake 6-8 9 Snowflake Growth Rates and Surface Area 6-8 10 Snow to Water Ratios 6-8 11 Snow Density and Volume 6-8 12 Snow Density, Mass and Roof Failure 6-8 13 Exploring Energy and Temperature 9-12 14 Exploring Temperature and States of Matter 9-12 15 What is a Snowball’s Chance on Mars? 9-12 16 3.0 Stratospheric Aerosol Gas Experiment (SAGE-III) Atmospheric Aerosols by Percentage 3-5 17 Exploring Aerosols 6-8 18 Aerosols and Light Dimming 6-8 19 The Ground Track of the International Space Station 6-8 20 Measuring Aerosol Concentration in Parts per Million 6-8 21 Aerosol Sources in the Stratosphere 6-8 22 A Study of Aerosol Extinction in the Stratosphere 6-8 23 Measuring Stratospheric Ozone with SAGE-III 6-8 24 The Sources and Sinks of Carbonyl Sulfide 6-8 25 A Scale Model of Aerosol Sizes 6-8 26 Exploring the Mass and Density of Aerosol Particles 6-8 27 Air Quality Index and Aerosol Density 6-8 28 Some Basic Properties of the SAGE-III Instrument 6-8 29 Using Opacity to find Aerosol Density 9-12 30 Space Math http://spacemath.gsfc.nasa.gov Table of Contents (contd) iii Three Ways to Describe Light Extinction 9-12 31 Sunset and Sunrise Geometry from the ISS 9-12 32 Light Attenuation using Exponential Functions 9-12 33 Investigating Opacity and Extinction 9-12 34 4.0 Van Allen Belt Probes Exploring Atoms using Integer Arithmetic 3-5 35 Telemetry Math 6-8 36 Exploring the Density of Gas in the Atmosphere 6-8 37 Exploring Gas Density in Space 6-8 38 Exploring the Outer Atmosphere 6-8 39 The Van Allen Probes - A matter of timing 6-8 40 The Area of an Elliptical Orbit 6-8 41 The Puzzling Van Allen Belts 6-8 42 The Van Allen Probes and Radiation Dose 8-10 43 An Improved Model for Van Allen Belt Radiation Doses 9-11 44 Exploring the Third Belt with the Van Allen Probes 9-12 45 The Van Allen Probes - Working with Octagons 9-12 46 Van Allen Belt Particles and their Energies 9-12 47 How to Measure the Mass of Earth 9-12 48 Exploring the Donut-shaped Van Allen Belts 9-12 49 Estimating the Total Mass of the Van Allen Belts 9-12 50 Measuring Earth's Magnetic Field in Space 9-12 51 Giving Particles a Boost in the Van Allen Belts 9-12 52 Exploring the Orbit of the Van Allen Probes 9-12 53 The Earth's Magnetic Field and the Van Allen Probes 9-12 54 Navigating in a Magnetic World 9-12 55 Navigating in a Magnetic Field using Linear Equations 9-12 56 Navigating a Magnetic Field using Vector Dot Products 9-12 57 Modeling the Radiation Dose of the Van Allen Probes 11-12 58 5.0 Problems from SpaceMath@NASA 2013-2014 Solar Storms Number Puzzle 3-5 59 The Orbit of Comet ISON 3-5 60 Comet ISON and its Close Encounter with Mars 3-5 61 Curiosity Heads for Mt Sharp 3-5 62 Comparing Comets Up Close with NASA Spacecraft 3-5 63 Volumes of Solids - Packing for a trip to the Moon 3-5 64 How Telescopes Work 3-5 65 How do Telescopes Magnify? 3-5 66 Solar Flares 3-5 67 Coronal Mass Ejections and Radiation Storms 3-5 68 Timeline for Planet Formation 3-5 69 The Relative Sizes of Planets and other Objects 3-5 70 Saturn’s Rings - A close-up study 3-5 71 How Big is Our Solar System? 6-8 72 Space Math http://spacemath.gsfc.nasa.gov Table of Contents (contd) iv Grade Page The Occulting Moons of Mars 6-8 73 Apparent Sizes of Objects from Jupiter’s Moon Europa 6-8 74 Number Puzzle about Planets Beyond our Solar System 6-8 75 A Number Puzzle about the Origin of Our Universe 6-8 76 Gravity and Falling Bodies 6-8 77 Transit of Phobos Across the Sun Viewed from Mars 6-8 78 The Launch of LADEE to the Moon 6-8 79 Constellations in 3D 6-8 80 Calculating the Volume of the J-2x Rocket Engine Bell 6-8 81 Angular Size : The Moon and Stars 6-8 82 Measuring the Speed of Gas Near a Black Hole 6-8 83 A Simple Gauge in a Tank - II 6-8 84 Adding a Level Gauge to a Conical Tank 6-8 85 Radiation Levels on the Surface of Mars 6-8 86 Voyager 1 Begins its Interstellar Journey 6-8 87 The Hubble Search for the Farthest Galaxy in the Universe 6-8 88 The Suns Nearest Companions - At least for now! 6-8 89 Kepler’s Latest Count on Goldilocks Planets 6-8 90 Visiting the Planets at the Speed of Light 6-8 91 Travel Times by Spacecraft Around the Solar System 6-8 92 The Late Heavy Bombardment Era 6-8 93 The Composition of Planetary Atmospheres 6-8 94 Exploring Your Weight Across the Solar System 6-8 95 IRIS Explores the Solar Transition Region 6-8 96 Io’s Volcanoes and Resurfacing 6-8 97 Focal Lengths, Apertures and F/numbers 6-8 98 Calculating the Magnification of a Telescope 6-8 99 Telescope Light Gathering Ability - Seeing Faint Stars 6-8 100 Telescope Field of View - How much can you see? 6-8 101 Telescope Resolution - How much detail can you see? 6-8 102 Designing a Telescope System 6-8 103 Digital Camera Math 6-8 104 The Scale of an Image with a Telescope 6-8 105 Buying a Telescope 6-8 106 How Quickly are NEOs being discovered? 6-8 107 Comet ISON Losing Mass as it Approaches the Sun. 6-8 108 Exploring the Orbit of Comet ISON 6-8 109 Exploring the Evaporating Exoplanet HD189733b 6-8 110 The Stars in Orion 6-8 111 Mapping Earth from Space - Swaths and Coverage 6-8 112 The Temperature of Earth without Carbon Dioxide 9-12 113 Global Warming and the Sun’s Evolving Luminosity 9-12 114 Space Math http://spacemath.gsfc.nasa.gov Table of Contents (contd) v Grade Page Exploring Artificial Gravity 9-12 115 Reading a Speed vs Time Graph - acceleration 9-12 116 Exploring Parabolas - The shape of a satellite dish 9-12 117 Cassini Sees the Earth From Saturn - How bright is it? 9-12 118 Colliding Galaxies and the Future of our Milky Way 9-12 119 The Basic Mathematics of Rocket Engines - I 9-12 120 Exploring Power-laws: Meteor impacts 9-12 121 Exploring Two Nearby Stars to the Sun.
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  • Aerodynamic Phenomena in Stellar Atmospheres, a Bibliography

    Aerodynamic Phenomena in Stellar Atmospheres, a Bibliography

    - PB 151389 knical rlote 91c. 30 Moulder laboratories AERODYNAMIC PHENOMENA STELLAR ATMOSPHERES -A BIBLIOGRAPHY U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS ^M THE NATIONAL BUREAU OF STANDARDS Functions and Activities The functions of the National Bureau of Standards are set forth in the Act of Congress, March 3, 1901, as amended by Congress in Public Law 619, 1950. These include the development and maintenance of the national standards of measurement and the provision of means and methods for making measurements consistent with these standards; the determination of physical constants and properties of materials; the development of methods and instruments for testing materials, devices, and structures; advisory services to government agencies on scientific and technical problems; in- vention and development of devices to serve special needs of the Government; and the development of standard practices, codes, and specifications. The work includes basic and applied research, development, engineering, instrumentation, testing, evaluation, calibration services, and various consultation and information services. Research projects are also performed for other government agencies when the work relates to and supplements the basic program of the Bureau or when the Bureau's unique competence is required. The scope of activities is suggested by the listing of divisions and sections on the inside of the back cover. Publications The results of the Bureau's work take the form of either actual equipment and devices or pub- lished papers.