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Electric Sail Technology Status Review

Electric Sail Technology Status Review

Pekka Janhunen Finnish Meteorological Institute, (Kumpula Space Centre ) ESA/ESTEC May 19, 2008 Electric Sail Technology Status Review Contents Tether manufacture Edward Haeggström et al., Univ. Helsinki, Electronics Res. Lab Tether reels Lutz Richter, DLR-Bremen Electron gun

By emily
(408 views)

The Solar System

The Solar System

The Solar System 1 star 9 8 planets 63 (major) moons asteroids, comets, meteoroids The distances to planets are known from Kepler’s Laws (once calibrated with radar ranging to Venus) How are planet sizes determined? Measure angular size on sky, Then use geometry…..

By Faraday
(283 views)

Space weather effects on Communication: Geomagnetic activity and Radio wave absorption in the equatorial region

Space weather effects on Communication: Geomagnetic activity and Radio wave absorption in the equatorial region

Space weather effects on Communication: Geomagnetic activity and Radio wave absorption in the equatorial region. Victor U Chukwuma* + Department of Physics, Olabisi Onabanjo University, P. O Box 351, Ago-Iwoye, Nigeria E-mail: victorchukwuma@yahoo.com

By Jeffrey
(393 views)

Space Science: Myths and Misconceptions

Space Science: Myths and Misconceptions

Space Science: Myths and Misconceptions. Dale Subaitis Henry Frazzini Jen Lewin. Target Audience. Middle School Teachers: Gen ed, Science, Math, Special Ed, etc. District and State Level -ISTA: Illinois Science Teachers Assoc. -Chicago Public Schools -District 194 (suburbs)

By Solomon
(227 views)

Practical Models of Solar Energetic Particle Transport

Practical Models of Solar Energetic Particle Transport

ID 86. Practical Models of Solar Energetic Particle Transport. Leon Kocharov Space Research Laboratory University of Turku, Finland http://www.srl.utu.fi Requirements A practical model intends to meet the following requirements:

By Samuel
(200 views)

Life as an Astronomer: 1. What do Astronomers Study?

Life as an Astronomer: 1. What do Astronomers Study?

Life as an Astronomer: 1. What do Astronomers Study?. Planets Solar System Stars “Star Stuff” (Interstellar Medium) Galaxies AGN/Quasars Clusters Universe. Life as an Astronomer: 1. What do Astronomers Study?. Solar System Sun Solar Wind Planets Moons Asteroids/NEOs

By Rita
(581 views)

Modern Solar Mysteries

Modern Solar Mysteries

Modern Solar Mysteries. Dr. David H. Hathaway NASA/MSFC National Space Science and Technology Center. As we learn more, and gain a deeper understanding of things, we uncover even deeper mysteries about he world we live in. Ancient Solar Mysteries. Why does the sun move across the sky?

By xaviera
(152 views)

The Radio Sun

The Radio Sun

VLA 1.4 GHz / 21 cm. NoRH 17 GHz / 1.8 cm. NRH 0.327 GHz / 91 cm. The Radio Sun. Karl-Ludwig Klein Observatoire de Paris - Meudon Ludwig.klein@obspm.fr. The solar corona. Magnetograms - SoHO/MDI. EUV images - SoHO/EIT.

By diane
(320 views)

Elements of the Solar System, Exploring Extrosolar Planets and Evolution of Planetary Systems

Elements of the Solar System, Exploring Extrosolar Planets and Evolution of Planetary Systems

Elements of the Solar System, Exploring Extrosolar Planets and Evolution of Planetary Systems. FIZ466, İTÜ. The Astronomical Unit (AU). The appropriate length unit for studying the Solar System is AU AU is the average distance between the Sun and the Earth

By cissy
(291 views)

The Solar System

The Solar System

The Solar System. 1 star 9 8 planets 63 (major) moons asteroids, comets, meteoroids. The distances to planets are known from Kepler’s Laws (once calibrated with radar ranging to Venus). How are planet sizes determined? Measure angular size on sky, Then use geometry….

By zoltin
(143 views)

Vagabonds of the Solar System

Vagabonds of the Solar System

Vagabonds of the Solar System. Chapter 17. Guiding Questions. How and why were the asteroids first discovered? Why didn’t the asteroids coalesce to form a single planet? What do asteroids look like? How might an asteroid have caused the extinction of the dinosaurs?

By frisco
(217 views)

Magnetic Effects

Magnetic Effects

Magnetic Effects. Forces between electric charges in motion. Familiar Ideas. An phenomenon apparently unrelated to electricity is magnetism. The interaction of compasses with the earth's magnetic field. Fridge magnets or magnets on children's toys. Magnetic forces.

By christophe
(213 views)

Module 6: Modelling the Formation of the Solar System

Module 6: Modelling the Formation of the Solar System

Module 6: Modelling the Formation of the Solar System. Activity 2: Planetary Evolution. Summary. In this Activity, we will investigate:.

By guglielmo
(178 views)

Recent Results from Theory and Modeling of Radiation Belt Electron Transport, Acceleration, and Loss

Recent Results from Theory and Modeling of Radiation Belt Electron Transport, Acceleration, and Loss

Recent Results from Theory and Modeling of Radiation Belt Electron Transport, Acceleration, and Loss. Anthony Chan, Bin Yu, Xin Tao, Richard Wolf Rice University Scot Elkington, Seth Claudepierre University of Colorado Jay Albert AFRL Michael Wiltberger NCAR.

By eternity
(140 views)

LFM-RCM Coupling F. Toffoletto 1 , S. Sazykin 1 ,V. Merkin 2 ,J. Lyon 2,3 , M. Wiltberger 4

LFM-RCM Coupling F. Toffoletto 1 , S. Sazykin 1 ,V. Merkin 2 ,J. Lyon 2,3 , M. Wiltberger 4

LFM-RCM Coupling F. Toffoletto 1 , S. Sazykin 1 ,V. Merkin 2 ,J. Lyon 2,3 , M. Wiltberger 4 1. Rice University, 2. Boston University, 3. Dartmouth College, 4. HAO/NCAR. LFM-RCM Coupling Basics. Coupling Progress. Good News/Bad News. Results from previous years were generally disappointing.

By yehudi
(127 views)

and show similar tilts in their rotational axes that give them strong seasonal variability; and historic evidence of cha

and show similar tilts in their rotational axes that give them strong seasonal variability; and historic evidence of cha

Earth versus Mars : The two planets have striking similarities. They have … roughly the same amount of land surface area; relatively similar atmospheric chemistry; and large, sustained polar caps comprising water ice;. and show

By eman
(102 views)

Size and Scale of the Universe

Size and Scale of the Universe

Size and Scale of the Universe. Image courtesy of The Cosmic Perspective by Bennett, Donahue, Schneider, & Voit; Addison Wesley, 2002. Earth. Planet where we all live Comprised primarily of rock Spherical in shape 12,700 km in diameter

By chelsey
(387 views)

Vocabulary in Context

Vocabulary in Context

fluorescent. bright and glowing . loops. moves in a circling way . particles. tiny pieces . nucleus. center of a comet . solar wind. continuous flow of gases from the Sun . force. power that causes motion or change. Vocabulary in Context. Comet Watching

By eara
(88 views)

The Sun

The Sun

The Sun. Lesson 1 – The Sun Objectives. To know the size of, and distance to, the Sun. To know the temperature and describe the nature of the Sun’s visible surface. To appreciate the dangers of observing the Sun and explain how the Sun can be observed safely. The Sun. The Sun is a star.

By solange
(73 views)

The Sun – A Typical Star

The Sun – A Typical Star

The Sun – A Typical Star. Here’s the Story I’ll Unfold for you… What’s it made of? A star: self-supporting partially ionized gas balancing gravity w/ pressure Nuclear fusion and how it powers the sun

By vincenzo
(154 views)

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