Microgravity microgravity. microgravity (512) Baby Satellite (504) Tranquilizer (808) The Fairy Tale (453) Cloudwalker II (526) Chromosphere (328) http://www.biosphere.no/microgravity.html
:: 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
Extractions: 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
Extractions: 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.
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
Extractions: Overview Martin E. Glicksman Matthew B. Koss , and Edward A. Winsa 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
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/
Extractions: 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 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. Visit the MSL-1 Ground Science Cyber-Laboratory and earn yourself a genuine Marshall LIFTOFF certificate of achievement!
Extractions: 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.
Extractions: 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.
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
Extractions: Login Nederlands KNAW Onderzoek Informatie NOD - Nederlandse Onderzoek Databank ... Onderzoek entire www.onderzoekinformatie.nl site fuzzy match 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.
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
Extractions: 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
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.
Extractions: 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." 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.
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
Extractions: 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: 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
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
Extractions: 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!)
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
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
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
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
Extractions: 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. 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
