Geometry.Net - the online learning center
Home  - Basic_M - Microgravity
e99.com Bookstore
  
Images 
Newsgroups
Page 6     101-120 of 128    Back | 1  | 2  | 3  | 4  | 5  | 6  | 7  | Next 20
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

         Microgravity:     more books (100)
  1. Growth of zinc selenide single crystals by physical vapor transport in microgravity semi-annual progress report, NASA grant NAG8-767, period of performance, ... through 10/1/93 (SuDoc NAS 1.26:194679) by F. Rosenberger, 1993
  2. Microgravity nucleation and particle coagulation experiments support a status report grant NAG 5-865 June 1, 1987 - November 30, 1987 (SuDoc NAS 1.26:181540) by L. U. Lilleleht, 1987
  3. Separation of biological materials in microgravity (SuDoc NAS 1.15:101142) by NASA,
  4. Zhongguo wei zhong li ke xue yu kong jian shi yan: Shou jie xue shu tao lun hui wen ji = Proceedings of the first Chinese Symposium on Microgravity Science ... Nov. 11-14, 1987, Beijing, China
  5. Bioregenerative life support systems for microgravity (SuDoc NAS 1.26:195516) by NASA, 1993
  6. Plant metabolism and cell wall formation in space (microgravity) and on earth (SuDoc NAS 1.26:197618) by Norman G. Lewis, 1994
  7. Assessment of Directions in Microgravity and Physical Sciences Research at NASA
  8. A new approach to active vibration isolation for microgravity space experiments (SuDoc NAS 1.15:102470) by Alok Sinha,
  9. Microgravity vibration isolation optimal preview and feedback control (SuDoc NAS 1.15:105673) by NASA, 1991
  10. Fluid Mechanics Phenomena in Microgravity, 1993: Presented at the 1993 Asme Winter Annual Meeting, New Orleans, Louisiana, November 28-December 3, 199 (Ped)
  11. Measurements and modeling of soot formation and radiation in microgravity jet diffusion flames (SuDoc NAS 1.26:205336) by Jerry C. Ku, 1996
  12. Heat Transfer in Microgravity: Presented at the 1993 Asme Winter Annual Meeting, New Orleans, Louisiana, November 28-December 3, 1993 (Bed)
  13. Proceedings, First International Symposium on Microgravity Research & Applications in Physical Sciences and Biotechnology: 10-15 September 2000, Sorre (Sp)
  14. Growth of zinc selenide single crystals by physical vapor transport in microgravity final report, NASA grant NAG8-767, period of performance, 4/1/89 - 8/31/95 (SuDoc NAS 1.26:199679) by F. Rosenberger, 1995

101. Microgravity
microgravity. microgravity (512) Baby Satellite (504) Tranquilizer (808) The Fairy Tale (453) Cloudwalker II (526) Chromosphere (328)
http://www.biosphere.no/microgravity.html
CD Origo Sound 1991, OCD 9105
Microgravity Microgravity (5:12)
Baby Satellite (5:04)
Tranquilizer (8:08)
The Fairy Tale (4:53)
Cloudwalker II (5:26)
Chromosphere (3:28)
Cygnus-A (5:02)
Baby Interphase (5:07)
Biosphere (4:41)

102. :: NASA Quest > Space ::
The 132meter drop creates a microgravity environment for a period of 5.2 seconds. NASA has employed many different sounding rockets for microgravity
http://quest.nasa.gov/smore/background/microgravity/MGintro3.html
Creating Microgravity
Drop Towers and Tubes
In a practical sense, microgravity can be achieved with a number of technologies, each depending upon the act of free fall. Drop towers and drop tubes are high-tech versions of the elevator analogy presented in a previous section. The large version of these facilities is essentially a hole in the ground. Drop towers accommodate large experiment packages, generally using a drop shield to contain the package and isolate the experiment from aerodynamic drag during free fall in the open environment. NASA's Glenn Research Center in Cleveland, Ohio has a 145-meter drop tower facility that begins on the surface and descends into Earth like a mine shaft. The test section of the facility is 6.1 meters in diameter and 132 meters deep. Beneath the test section is a catch basin filled with polystyrene beads. The 132-meter drop creates a microgravity environment for a period of 5.2 seconds. To begin a drop experiment, the experiment apparatus is placed in either a cylindrical or rectangular test vehicle that can carry experiment loads of up to 450 kilograms. The vehicle is suspended from a cap that encloses the upper end of the facility. Air is pumped out of the facility until a vacuum of 10

103. American Society For Gravitational And Space Biology -- Microgravity
NASA uses the term microgravity to refer to the condition that is produced by a The diagram illustrates how a condition of microgravity is created.
http://www.asgsb.org/newsletter/v14_3/microgravity.html
Microgravity Contributed by Greg L. Vogt
Crew Educational Affairs Liaison, NASA Johnson Space Center
Gravity is an attractive force that is a fundamental property of all matter. Whether an object is a planet, a feather or a person, each exerts a gravitational force on all other objects around it. Physicists identify gravity as one of the four types of forces in the universe (the others are strong and weak nuclear forces and electromagnetic force). The strength of the attraction between two objects is directly proportional to the product of the masses of those objects and inversely proportional to the square of the distance between the centers of mass of those objects: in other words, the larger the objects the stronger the attraction between them and the greater the distance between the objects the weaker the attraction. When measured at the surface of the Earth, the acceleration of an object acted upon only by Earth’s gravity is commonly referred to as "1 g" or "unit gravity." This acceleration is approximately 9.8 meters per second squared (m/s2). On Earth, gravitational force is important in providing orientation and guidance to many forms of life including plants. For example, plants orient themselves with gravity so that shoots grow up and roots grow down and water and nutrients are transported through the plants against the pull of gravity.

104. The Chronology Of A Microgravity Spaceflight Experiment: IDGE
On board, as part of the second United States microgravity Payload Measured dendritic growth velocities under microgravity and terrestrial conditions.
http://www.tms.org/pubs/journals/JOM/9508/Glicksman-9508.html
The following article appears in the journal JOM
47 (8) (1995), pp. 49-54. JOM is a publication of

Overview
The Chronology of a Microgravity Spaceflight Experiment: IDGE
Martin E. Glicksman Matthew B. Koss , and Edward A. Winsa
The evolution of the Isothermal Dendritic Growth Experiment (IDGE), which was performed aboard the space shuttle Columbia, provides an example of how a space flight experiment is proposed, developed, built, and operated. To illustrate this example, this article traces the key developments of the IDGE from the initial concept to the actual space flight mission.
INTRODUCTION
On March 4, 1994, 8:53 A.M., the space shuttle Columbia STS-62 ) lifted off from the Kennedy Space Center, Cape Canaveral, Florida, into a low- Earth orbit (LEO) of approximately 300 kilometers. On board, as part of the second United States Microgravity Payload (USMP-2), was the Isothermal Dendritic Growth Experiment Rensselaer Polytechnic Institute and NASA's Lewis Research Center , was ten years in development as a space flight program; for five years prior to that, it was a ground-based

105. NASA Quest > Space Team Online
Office of Life and microgravity Sciences and Applications This information on microgravity was developed by the NASA Education Division with the
http://quest.arc.nasa.gov/space/teachers/microgravity/
Microgravity
A Teacher's Guide with Activities
in Science, Mathematics, and Technology
National Aeronautics and Space Administration Office of Life and Microgravity Sciences and Applications
Microgravity Research Division Office of Human Resources and Education
Educations Division
Permission is not required for duplication An Adobe Acrobat version of the entire Teacher's Guide is available. This version preserves all formatting from the original hardcopy Guide; it will provide an easy source for downloading a printable version of the Guide. Table of Contents
Introduction
Microgravity Science Primer

Combustion Science

Fluid Physics
...
Glossary
Activities
  • Activity Matrix - Standards and skills
  • Microgravity In The Classroom 1
  • Microgravity In The Classroom 2
  • Accelerometers ...
    NASA Educational Materials
    This information on microgravity was developed by the NASA Education Division with the assistance of the many educators of the Aerospace Education Services Program, Oklahoma State University.
    Related Web Pages
  • 106. 2003 Fire Publications - Extinction Characteristics Of Cup-Burner Flame In Micro
    microgravity; extinction; flame extinction; fire suppression; As the diffusion flames behave differently in microgravity compared to those on earth,
    http://fire.nist.gov/bfrlpubs/fire03/art080.html
    Extinction Characteristics of Cup-Burner Flame in Microgravity.
    Extinction Characteristics of Cup-Burner Flame in Microgravity. (785 K)
    Katta, V. R.; Takahashi, F.; Linteris, G. T.
    AIAA 2003-1150; 12 p. 2003.
    Keywords:
    microgravity; extinction; flame extinction; fire suppression; microgravity combustion; halon alternatives; flame stabilization; carbon dioxide
    Abstract:
    Building and Fire Research Laboratory
    National Institute of Standards and Technology

    Gaithersburg, MD 20899

    107. Vasily P. Yaremchuk S Home Page Convection And Microgravity Science
    Vasily P. Yaremchuk s home page Convection and microgravity Science.
    http://www.ipmnet.ru/~yarem/

    108. Macromolecular Crystallography In Microgravity - UAB Center For Biophysical Scie
    Macromolecular Crystallography in microgravity The Center for Biophysical Sciences and Engineering, University of Alabama at Birmingham.
    http://www.cbse.uab.edu/crystallography-gravity.shtml

    home
    Macromolecular Crystallography
    in Microgravity
    For more information, contact: Marianna Long, Ph.D.
    Associate Director for
    Commercial Programs
    Phone: (205) 934-8991
    Fax: (205) 934-0480
    E-mail: long@cbse.uab.edu Karen Moore, Ph.D.
    Program Director for
    Microgravity Experiments
    Phone: (205) 934-0117 Fax: (205) 934-0480 E-mail: moore@cbse.uab.edu Home Structural Biology Biotechnology/Pharmaceutical ... Search - Make Your Point, Make It Click!

    109. SPACE.com -- Russian Research Satellite To Conduct Microgravity Experiments
    Military ground crews at Cosmodrome Plesetsk, Russia s northern launch site, are conducting final checks for a planned launch Thursday of a Soyuz booster
    http://www.space.com/scienceastronomy/generalscience/foton_launch.html
    advertisement
    Russian Research Satellite to Conduct Microgravity Experiments
    By Anatoly Zak

    Staff Writer
    posted: 12:07 pm ET
    09 September 1999
    Military ground crews at Cosmodrome Plesetsk, Russia's northern launch site, are conducting final checks for a planned launch Thursday of a Soyuz booster carrying a Foton-12 satellite, according to the Russian Space Agency. The unmanned satellite is expected to spend just over two weeks in orbit, conducting microgravity experiments in chemistry and biotechnology for the Russian and European space agencies. Because it is a small, unpiloted spacecraft with no rotating parts, the level of microgravity available for experiments onboard Foton-type spacecraft is hundreds of times higher than that achievable on the Space Shuttle or the Mir space station. Life support systems and other electric motors on these piloted craft cause vibrations that limit the level of microgravity. Upon completion of its two-week mission, the spacecraft's reentry vehicle will return to Earth with its 1,342 lb. (610 kg) scientific payload. In addition to the reentry vehicle, the 14,100 lb. (6,410 kg) spacecraft includes an expendable instrument module and a battery container. Both separate from the reentry module and burn-up in the atmosphere at the end of the mission.

    110. Benefits Of Microgravity Sciences Research Explored In Outreach Program For Stud
    microgravity, or MicroG, is a state of very weak gravity—one-millionth of what is felt on Earth. Conducting physical and life sciences research in such
    http://www.californiasciencecenter.org/GenInfo/MediaRoom/PressReleases/MicroGrav
    Media Contact: Paula Wagner
    April 25, 2001 Benefits of Microgravity Sciences Research Explored in Outreach Program for Student and the General Public Los Angeles - On May 2, 2001, the California Science Center will host an outreach program of the Second Pan-Pacific Basin Workshop on Microgravity Sciences designed to help students, educators, researchers, and the public learn more about how life on Earth can benefit from research conducted in space. The morning session will take place from 10:00 a.m. to 11:40 a.m. and targets middle and high school students, while the afternoon session , scheduled from 4:00 p.m. to 5:40 p.m., will be open to the general public. Both sessions will link with several broadcast sites across the country and the afternoon session will feature a live global town hall meeting including audiences in Australia and Hawaii. The panel of experts and their topics will include Gerard Faeth, Ph.D., professor, University of Michigan, on combustion; Nicholas Bigelow, Ph.D., professor, University of Rochester, on micro-measurement (atomic clock); Chiaki Mukai, M.D., astronaut and cardiovascular surgeon, on living and working in space; and Bernard Harris, M.D., astronaut and surgeon, will speak on what it takes to fly. The event will also include demonstrations and taped segments with opinions from communities in various Pan Pacific nations.

    111. NASAexplores 9-12 Lesson Plant Growth In Microgravity (Teacher
    To understand the role of gravity and microgravity on the growth and To analyze the interactions of microgravity with other parameters of space such as
    http://www.nasaexplores.com/show_912_teacher_st.php?id=030108140229

    112. Project: Cardiovascular Adaptation To Microgravity (www.onderzoekinformatie.nl)
    TitelEng, Cardiovascular adaptation to microgravity. Samenvatting-Eng, This project aims at the measurement of (the better parts of) 24-hr continuous blood
    http://www.onderzoekinformatie.nl/nl/oi/nod/onderzoek/OND1288499/toon
    Login Nederlands KNAW Onderzoek Informatie NOD - Nederlandse Onderzoek Databank ... Onderzoek entire www.onderzoekinformatie.nl site fuzzy match
    Project: Cardiovascular adaptation to microgravity
    Print View Titel-Eng Cardiovascular adaptation to microgravity Samenvatting-Eng This project aims at the measurement of (the better parts of) 24-hr continuous blood pressure and heart rate patterns in cosmonauts. These measurements were planned to take place in the Russian crew members under the jurisdiction of the IBMP medical staff. Dutch scientists participate in these experiments as part of the Russian team.
    In April 1999 Dr Karemaker visited the Russian colleagues at the IBMP in Moscow. As a result of the discussions a plan was drafted to round off the work in this project. In view of the end of the working life of MIR station, the project must be restricted to the blood pressure recordings that were made during the last full missions. From the onboard Portapres the colleagues at IBMP have now collected a sufficient number of observations in different cosmonauts. This makes it worthwhile for a combined evaluation and publication on ambulatory blood pressures during long-term stay in microgravity. In Amsterdam we have the expertise to decode and interpret the blood pressure data as they have been collected in space.
    The measurements to be analysed were performed in a Russian-French collaboration. CNES has paid for the mission as well as the flight hardware (a specially adapted version of the Portapres). Under the terms of the Russian-French contract the IBMP scientists must have a first publication of the experimental results together. This precluded the Russians from coming to Amsterdam to work with us on these data in the year 2000. The presentation of the first results will now be in March 2001 in Toulouse. Only after this we can decide on when and how to do our combined analyses. We expect the combined work on the data files to take place around the middle of 2001 in Amsterdam.

    113. Microgravity
    Author rick j ziolkowski How does microgravity affect the muscles and Response 1 of 1 Author hawley I suspect that microgravity has little affect
    http://www.newton.dep.anl.gov/newton/askasci/1995/astron/AST239.HTM
    Ask A Scientist
    Astronomy Archive
    Microgravity
    Author: rick j ziolkowski How does microgravity affect the muscles and cardiovascular systems? Response #: 1 of 1 Author: hawley I suspect that microgravity has little affect on the human body, i.e., the difference between microgravity and no gravity at all is negligible. You can find more info on microgravity at NASA's Spacelink BBS which you can get to from NEWTON or telnet spacelink.msfc.nasa.gov
    Back to Astronomy
    Ask A Scientist Index NEWTON Homepage Ask A Question ...
    NEWTON
    is an electronic community for Science, Math, and Computer Science K-12 Educators.
    Argonne National Laboratory, Division of Educational Programs, Harold Myron, Ph.D., Division Director.

    114. Splashing In Microgravity
    Under microgravity conditions, the effects of surface tension dominate, and the resulting interplay between capillary and inertial forces can create effects
    http://www.apl.washington.edu/edu_opportunities/undergrad_research/microgravity.
    Splashing in Microgravity
    Under its Undergraduate Opportunities Research Program, NASA accepts proposals from undergraduate students to conduct experiments on board its KC-135A, the military equivalent of a Boeing 707, used to train astronauts. During the experiments, the aircraft cycles between g and 2 g in a parabolic trajectory. The high incidence of motion sickness has earned the aircraft the nickname "Vomit Comet."
    The "Vomit Comet" on its parabolic trajectory. Students carrying out experiments in g
    Under the supervision of APL-UW Senior Physicist John Wettlaufer, Lisa Couret and 1998 Hardisty Scholar Dorothy Caplow, both physics majors, conducted an experiment to determine what happens when a drop of fluid hits a fluid surface. The experiments were designed to investigate the effect of gravity on the transition between splashing and coalescing drops and the effect on the characteristic "crown of thorns" produced by a splashing drop. The characteristic shape and evolution of the resulting space depend on the balance of capillary, inertial, and gravitational forces. Under microgravity conditions, the effects of surface tension dominate, and the resulting interplay between capillary and inertial forces can create effects impossible in 1 g . Because of the complicated, nonlinear nature of the problem, these effects are difficult to model or predict beforehand.

    115. Microgravity
    The microgravity environment of space offers a unique environment to perform microgravity provides an opportunity for experimentation in a whole new
    http://www.itaspace.com/microgravity.html
    Microgravity Space is the laboratory of the next millennium Astronaut Joe Allen with his morning orange juice on an early Shuttle mission The microgravity environment of space offers a unique environment to perform research with the potential to lead to new products and technologies. Microgravity provides an opportunity for experimentation in a whole new quiescent environment:
    • no thermally-induced convection
    • no sedimentation/stratification
    • no hydrostatic pressure
    • reduced contact with vessel walls
    Microgravity has been a major area of research in the space programs of all space faring nations, and will revolutionize traditional Earth-bound processing methods. The potential scientific, technological and commercial benefits of microgravity research to humankind are substantial, especially in the biomedical and drug development sectors. Large (750 micron) urokinase protein crystal grown in ITA equipment on the STS-80 16-day shuttle mission, to be used in cancer research. Typical microgravity experiments that have been conducted in space using ITA equipment include:
    • Cancer and AIDS research
    • Cell biology
    • Collagen polymerization
    • Inorganic crystal growth
    • Materials/Fluid sciences- t o enhance understanding of fluid dynamics and transport processes for use in non-toxic, environmentally compatible extraction methods, especially in biotechnology and free-fluid processing

    116. Microgravity Science At Astra's
    microgravity Science News and Research Sponsored by NASA Marshall Space Sciences microgravity Science - Related Meetings and Symposia - Calendar of
    http://www.astras-stargate.com/microg.htm
    Microgravity Science on the Web
    After I began working in the Microgravity Science Division at NASA Glenn Research Center , I was inspired to work up this page of Links to Microgravity Science on the World Wide Web. Please check out Microgravity Fluid Physics page. I also helped develop a web site for Combustion Module-1 a fascinating facility capable of being re-used on the shuttle Columbia many times. I hope you find Mu-G as interesting as I do!
    MICROGRAVITY LINKS
    Just the Basic Facts.... (great if you are just getting into it!)
    References on Microgravity

    STS-78 Press Kit: Microgravity Science Investigations

    LeRC - Educational Info on MicroG

    Space Science Microgravity Center
    ...
    Microgravity from Spacelink
    NCMR National Center for Microgravity Research from USRA
    Zero Gravity Research Facility
    The International Space Station Facility

    Microgravity Science and Applications
    ...
    Drop Tower "Bremen"
    - Click Here for ZARM/FAB index
    Microgravity for Tech Innovations
    - Describes the Facilities at The Japan Microgravity Center - AND -
    The HNIRI 10M Drop Tower. Sponsored by the

    117. Microgravity Environment Interpretation Tutorial
    Register now for the 8th Annual microgravity Environment Interpretation Tutorial. Click here NASA Glenn microgravity Environment Program (MEP) Overview
    http://www.grc.nasa.gov/WWW/MMAP/PIMS/MEIT/meitmain.html
    PIMS 8th Annual Microgravity Environment Interpretation Tutorial
    NASA Glenn Research Center, Cleveland, Ohio
    Register now for the 8th Annual Microgravity Environment Interpretation Tutorial. Click here
    Draft Agenda
    Invitation Registration ... Description
    Current
    MEIT
    Information MEIT Agenda Meeting Invitation Meeting Registration Course Description Speakers Info Archived Tutorials MEIT 2004 PDF's MEIT 2003 PDF's MEIT 2002 PDF's MEIT 2001 PDF's ... MEIT 1999 PDF's
    Search the entire MSD site from here!

    PIMS Microgravity Environment Interpretation Tutorial (MEIT)
    April 4-6 2005, Radisson Hotel Cleveland Airport, North Olmsted, Ohio
    The MEIT is being held as part of the NASA Reduced-gravity Environment Conference for Exploration. For details and registration, please check the

    118. General Info - Microgravity
    SSC can offer two rocket platforms for microgravity experiments; MASER and MAXUS. microgravity payloads have been designed and delivered for sounding
    http://www.ssc.se/default.asp?groupid=200467171157151

    119. SOUNDING ROCKETS & MICROGRAVITY
    Payloads microgravity We offer consulting services, studies, At Esrange, we launch sounding rockets for microgravity and atmospheric research.
    http://www.ssc.se/default.asp?groupid=2004616143029656

    120. Microgravity Materials Laboratory
    On the microgravity Materials Laboratory, materials are synthesized in microgravity and In the microgravity Material Laboratory, various highquality
    http://www.aist.go.jp/aist_e/research_units/research_lab/mg_mat/mg_mat_main.html
    Microgravity Materials Laboratory
    10m Drop Tower
    From the results of our research, it is found that high-quality crystalline materials such as single crystal and materials with well- controlled structure can be synthesized by rapid unidirectional solidification of homogeneous melt obtained in microgravity. We found this information first in the world. Based on the information, we are trying to synthesize high-performance magnetic materials, high-temperature thermoelectric semiconductors, compound semiconductors and diluted magnetic semiconductors,which are supporting IT, nano-technologies and so on.
    Magnetostrictive characteristics of TbFe sample produced by unidirectional solidification using static magnetic field(Magnetic flux density: 4.5x10-2T) in microgravity and normal gravity. Synthesis of High Performance Magnetic Materials
    Much efforts have been spent in the field of new high performance magnetic materials. New hard magnetic
    In microgravity environment, thermal convection and mass transfer are suppressed. Our earlier work showed that the melt was kept in homogeneous state during solidification in microgravity and unidirectional solidification of the homogeneons melt in microgravity derived the production of high-quality or well-contralled structure crysrals. As a typical example of solidification of magnetostrictive material, crystallographically aligned TbFe

    A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

    Page 6     101-120 of 128    Back | 1  | 2  | 3  | 4  | 5  | 6  | 7  | Next 20

    free hit counter