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  1. Top | #1
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    Post Astronomical News

    Hello.
    I want to put this post to talk about latest news around astronomy, Its a new astronomical news page......
    I'll appreciate if u help me with this post........


    Thank u All
    ویرایش توسط planetstruck : 04-11-2011 در ساعت 09:36 AM دلیل: Adding words,Correcting Grammar points


  2. Top | #81
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          NASA Ames Hosts Live Conference with Shuttle, Space Station Crews

    MOFFETT FIELD, Calif. -- The 10 crew members aboard STS-135 space shuttle Atlantis and the International Space Station will hold a news conference at 6:24 a.m. PDT, Friday, July 15. Reporters may view the televised press conference at NASA's Ames Research Center in the main auditorium, Bldg. N-201, and ask questions of the participants via a phone link.

    To participate, journalists must contact Rachel Hoover at rachel.hoover@nasa.gov by 4 p.m. PDT today, Tuesday, July 12. Reporters must be in place at least 20 minutes before the news conference begins.

    Atlantis will carry a system to investigate the potential for robotically refueling existing spacecraft and bring back a failed ammonia pump to help NASA better understand and improve pump designs for future systems. It also will deliver spare parts to sustain space station operations after the shuttles retire from service.

    The final shuttle mission is delivering the Raffaello multi-purpose logistics module filled with supplies and spare parts to sustain space station operations after the shuttles are retired. In addition to transferring tons of supplies to the space station, astronauts also will deliver several life science experiments and technology demonstrations developed in collaboration with Ames. Scientists and engineers expect the payloads will better our understanding of how robots can help humans live and work in space and how spaceflight affects the human body, the growth of cells, yeast and plants.

    STS-135 Mission Specialist Rex Walheim was born in Redwood City, Calif., and considers San Carlos, Calif., his hometown. He graduated from San Carlos High School and received a bachelor of science degree in mechanical engineering from the University of California, Berkeley.

    NASA Television will provide live coverage of the 40-minute news conference. Part of the conference will be for Japanese media outlets in their native language. NASA TV will replay the event with translation at 8 a.m. PDT.

    To reach NASA Ames, take U.S. Highway 101 to the Moffett Field, NASA Parkway exit and drive east on Moffett Boulevard towards the main gate. In order to gain entry, visitor badges must be obtained from the Visitor Badge Office, Bldg. 26, located at the main gate.

    For NASA TV downlink, schedule and streaming video information, visit:

    http://www.nasa.gov/ntv
    For information about the STS-135 and the Space Shuttle Program, visit:

    http://www.nasa.gov/shuttle
    For information about the station's Expedition 28 crew and the station program, visit:

    http://www.nasa.gov/station
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  3. Top | #82
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          Mike Leinbach, Shuttle Launch Director

    Mike Leinbach, Shuttle Launch Director: There are so many things that can keep a shuttle on the ground, weather being one of them. It's one of the more visible ones to the public, of course.

    Narrator: Weather is often the difference between "go" and "no go" when a space shuttle is ready to lift off from NASA's Kennedy Space Center in Florida.

    The task of tracking the weather and determining whether or not it's safe for a shuttle to launch falls to the Launch Weather Officer.

    It's a service provided by the U.S. Air Force 45th Weather Squadron, based at nearby Cape Canaveral Air Force Station.

    Kathy Winters, Shuttle Launch Weather Officer: Well it's a very tropical environment here in Florida. We have the sea breeze that occurs, we have the river breezes that occur. Anytime we get some low-level convergence and we have enough moisture, we can develop showers and thunderstorms, particularly in the summer time. And so, working the weather, you want to really be able to nail it down, but there's a lot of times where there's a lot of iffy situations. And so that's where it's really challenging.

    Narrator: Space shuttle launches are governed by a complex set of weather rules, called "launch commit criteria," designed to keep the shuttle and astronauts safe.

    There are limits for rain, lightning, clouds and winds. And if any one of the rules is violated, that's a "no-go."

    Winters: It may look good out here, but we actually could be red. And so I know a lot of people think, "It wasn't that bad!" But it's violating our launch commit criteria and we have a safety issue. So we have to call it.

    Narrator: The team can only begin filling the shuttle's 15-story external fuel tank if weather permits -- and of course, conditions must be favorable at the launch pad at liftoff.

    They also need good conditions for a landing, in case the shuttle develops a problem during flight and must come back to land at Kennedy -- an unlikely, last-resort emergency landing option called a Return to Launch Site abort.

    Winters relies on several forecasting tools including radars, satellite imagery, weather balloons and other data sources.

    Winters: The location of the radar is off to the west, as opposed to the south. So our new radar being off to the left allows us to pick up the sea breeze a lot better, particularly now because we have Doppler capability with this radar.

    Narrator: Conditions can change quickly, so the launch team often will go ahead with a countdown -- despite a gloomy forecast -- just to be ready in case the weather changes for the better.

    Leinbach: I recall one mission where we decided to tank and go for launch with only 5 percent chance of launching that day, and indeed, we launched. And so that's a case where we got lucky, probably. There've been other cases where we had, you know, about an 80 percent "go" for launch, and then we end up scrubbing for weather. More often than not, we'll give it a shot.

    Narrator: The team has weathered some memorable days -- one of which took place in August 2006, when Hurricane Ernesto threatened Kennedy Space Center as shuttle Atlantis waited on the launch pad.

    Leinbach: Hurricanes and a shuttle on the launch pad are incompatible, as you might imagine. And so we have very strict criteria to roll the vehicle back to the VAB in the event of a threatening hurricane.

    Narrator: Space shuttle Atlantis began the long, slow roll from the launch pad to the safety of the Vehicle Assembly Building in advance of the storm.

    But when the shuttle was only a third of the way through the six-hour move, Leinbach learned Ernesto had not strengthened -- and he sent the shuttle back to the launch pad.

    Leinbach: And we went back to the pad, the storm passed about 50 miles offshore, got a little bit of rain and some wind, but no big deal -- and we were able to launch about seven or eight days later.

    Winters: It was just so unique. It was very challenging. At the time I probably wouldn't have called it my favorite, but now, looking back, it's one of our favorite stories to talk about.

    Narrator: Winters is part of a team of about 40 people supporting launch at the 45th Weather Squadron.

    That's in addition to personnel at Johnson Space Center's Spaceflight Meteorology Group in Houston, the Marshall Space Flight Center in Huntsville, and the weather office here at Kennedy.

    But the working relationship between the launch director and launch weather officer is critical.

    Leinbach: We do a daily weather tag-up every day. Monday through Friday, every day, for about 10, 15 minutes. Doing a daily with her is really helpful, not only for the people processing the vehicle at the pad, but it builds that relationship between she and I that is very critical on launch day.

    Leinbach: Range weather.

    Winters: Weather has no constraints for launch.

    Leinbach: Thank you, Kathy.

    Winters: There's been times we've been in tough situations and I think Mike can tell just from the sound of my voice what I'm feeling, what I'm thinking about a particular situation. So he knows if I'm getting more concerned about something just by the tone of my voice.

    Narrator: NASA will never control the weather, but a talented team and strict safely guidelines will always help protect the nation's spacecraft... and crews.
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  4. Top | #83
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    Jun 2011
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          NASA Supports Competition To Create Out Of This World T-Shirt Design

    WASHINGTON – NASA, through the Harvard-NASA Tournament Laboratory, is supporting an online challenge for artists to design a T-shirt commemorating the final space shuttle mission and the program's contributions to exploration.

    The challenge is run by Threadless, an online design site, and the Harvard-NASA Tournament Laboratory. The lab is administered by Harvard University, which is under contract to NASA to study crowd sourced innovation that leads to tournaments for scientific and engineering challenges.

    Threadless, an online community of amateur and professional designers, is challenging its 1.5 million international artists and the public to design a shirt about "The Final Frontier" by July 22. Threadless will produce the design chosen through online votes. The chosen designer will receive a $500 cash prize, a $500 Threadless gift certificate and a shuttle-flown patch from his or her home country. The Harvard-NASA Tournament Laboratory will provide the patch.

    For more information about the final space shuttle mission and the shuttle program, visit:

    For more information about the Harvard-NASA Tournament Lab, visit:


    To submit a design, vote or view current submissions, visit Threadless at:


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  5. Top | #84
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          A Pulsar and Its Mysterious Tail



    A spinning neutron star is tied to a mysterious tail -- or so it seems. Astronomers using NASA's Chandra X-ray Observatory have found that this pulsar, known as PSR J0357+3205 (or PSR J0357 for short), apparently has a long, X-ray bright tail streaming away from it.

    This composite image shows Chandra data in blue and Digitized Sky Survey data in yellow. The position of the pulsar at the upper right end of the tail is seen by mousing over the image. The two bright sources lying near the lower left end of the tail are both thought to be unrelated background objects located outside our galaxy.

    PSR J0357 was originally discovered by the Fermi Gamma Ray Space Telescope in 2009. Astronomers calculate that the pulsar lies about 1,600 light years from Earth and is about half a million years old, which makes it roughly middle-aged for this type of object.

    If the tail is at the same distance as the pulsar then it stretches for 4.2 light years in length. This would make it one of the the longest X-ray tails ever associated with a so-called "rotation-powered" pulsar, a class of pulsar that get its power from the energy lost as the rotation of the pulsar slows down. (Other types of pulsars include those driven by strong magnetic fields and still others that are powered by material falling onto the neutron star.)

    The Chandra data indicate that the X-ray tail may be produced by emission from energetic particles in a pulsar wind, with the particles produced by the pulsar spiraling around magnetic field lines. Other X-ray tails around pulsars have been interpreted as bow-shocks generated by the supersonic motion of pulsars through space, with the wind trailing behind as its particles are swept back by the pulsar's interaction with the interstellar gas it encounters.

    However, this bow-shock interpretation may or may not be correct for PSR J0357, with several issues that need to be explained. For example, the Fermi data show that PSR J0357 is losing a very small amount of energy as its spin slows down with time. This energy loss is important, because it is converted into radiation and powering a particle wind from the pulsar. This places limits on the amount of energy that particles in the wind can attain, and so might not account for the quantity of X-rays seen by Chandra in the tail.

    Another challenge to this explanation is that other pulsars with bow-shocks show bright X-ray emission surrounding the pulsar, and this is not seen for PSR J0357. Also, the brightest portion of the tail is well away from the pulsar and this differs from what has been seen for other pulsars with bow-shocks.

    Further observations with Chandra could help test this bow-shock interpretation. If the pulsar is seen moving in the opposite direction from that of the tail, this would support the bow-shock idea.

    These results were published in the June 1st, 2011 issue of The Astrophysical Journal. The first author is Andrea De Luca of Institute of Advanced Study in Pavia, Italy (IUSS), the National Institute of Nuclear Physics (INFN) in Rome, and the National Institute for Astrophysics (INAF) in Milano.

    The co-authors are M. Marelli of INAF, Milano and the University of Insubria in Italy; R. Mignani of University College London, UK and University of Zielona Gora, Poland; P. Caraveo of INAF, Milano; W. Hummel of ESO, Germany; S. Collins and A. Shearer of National University of Ireland; P. Saz Parkinson of University of California at Santa Cruz; A. Belfiore of University of California at Santa Cruz and University of Pavia; and, G. Bignami of IUSS, Pavia and INAF, Milano.
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  6. Top | #85
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    Jun 2011
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    139
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          Scientists Explore the Deep to Learn More about Life and Science

    MOFFETT FIELD, Calif. -- NASA and the Canadian Space Agency invite the news media to join the international, multidisciplinary Pavilion Lake Research Project (PLRP) team as it explores, studies and documents rare freshwater rock formations that thrive in Kelly Lake, British Columbia, Canada. The research project blends science and technology to advance knowledge of astrobiology and study life in an extreme environment using a combination of underwater vehicles and scuba divers.

    It will take more than building rockets and selecting astronauts for humans to voyage to another planet; it also will take considerable planning and operations expertise. The PLRP's underwater environment presents a unique opportunity to integrate science and exploration field activities and serves as an analog to better understand the challenges associated with conducting scientific research in extreme environments. It is this knowledge that will form the basis of future exploration concepts for human research voyages to such destinations as near-Earth asteroids, Mars, and other destinations in space.

    News media will have an opportunity to interview PLRP team members, including a NASA astronaut, from Sunday, July 17, 2011, to Saturday, July 23, 2011. News media interested in attending must contact Rachel Hoover at rachel.hoover@nasa.gov, as space is limited. News media also will be required to attend a safety and logistical session before gaining access to the PLRP Project field site at Kelly Lake.

    This year at Kelly Lake, the team will launch new tools, such as the Exploration Ground Data Systems developed at NASA's Ames Research Center, Moffett Field, Calif., to enable them to rapidly synthesize, manage and analyze large data sets, as well as plan and manage flight scheduling. These tools also will be used to manage the "delayed communications" research that will build 50-second communication delays between the submarine pilot and the mission operations crew to simulate what it is like conducting science on asteroids with human explorers.

    The team also will use a new planning tool to better manage a dynamic and complex operations schedule, as well as gain a new degree of situational awareness about all field camp activities. To achieve this, human spaceflight operations planners from NASA's Johnson Space Center, Houston, will share their expertise and experience gained from supporting mission operations for the space shuttle and International Space Station. The operations planning team will support real-time operations by managing and distributing plans via a website developed by engineers at Ames called Score Mobile, to allow for re-planning when activities don¹t go as scheduled, and provide situational awareness to the team.

    This year's field team also includes a member from Google Inc, Mountain View, Calif., who will help the team evolve its use of mapping activities and develop cutting-edge data integration platforms based on Google Earth.

    In addition to achieving its science and technology goals, this year's field test also will provide local teachers a unique opportunity to learn how a lake in their community will be used to train astronauts and scientists and prepare them for space exploration. The teachers will participate in hands-on field activity workshops so they can share what they learned with their students and inspire the next generation of space enthusiasts.

    For more information about this year's Pavilion Lake Research Project, visit:

    http://www.pavilionlake.com
    For more information about NASA's Exploration Analog Missions, visit:

    http://www.nasa.gov/exploration/home/analogs.html
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  7. Top | #86
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    Jun 2011
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          NASA Ames to Host Conference with Lunar Luminaries

    MOFFETT FIELD, Calif. – Lunar researchers from all over the world have been invited to the fourth annual Lunar Science Forum July 18-21 at NASA’s Ames Research Center, Moffett Field, Calif.

    Hosted by the NASA Lunar Science Institute, the forum focuses on science of the moon, on the moon and from the moon, and features scientists from NASA’s Lunar Reconnaissance Orbiter (LRO), Lunar CRater Observation and Sensing Satellite (LCROSS) Lunar Atmosphere and Dust Environment Explorer (LADEE), Gravity Recovery and Interior Laboratory (GRAIL) and the Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) missions.

    The forum also will host the pre-forum debut of the Braille book, “Getting a Feel for Lunar Craters,” which will take place from 6 p.m. to 7:30 p.m. PDT on Monday, July 18. Author David Hurd, a space science professor at Edinboro University of Pennsylvania, and students from the California School for the Blind, Fremont, Calif., are scheduled to attend the event.

    Additionally, from 6:30 to 8:30 p.m. on Tuesday, July 19, the Shoemaker medal for lifetime contributions to lunar science will be awarded at NASA night. The medal commemorates the life and work of Gene Shoemaker, one of the founders of the field of planetary science and a lunar science pioneer. “We look forward to another outstanding program and delight in revealing the Shoemaker medal recipient, someone who is truly one of our communities’ most distinguished researchers,” said Yvonne Pendleton, director of NASA's Lunar Science Institute.

    News media planning to attend must contact Cathy Weselby at 650-604-4789 or cathy.weselby@nasa.gov before 5 p.m. on July 18 for credentials.

    For more information about the Lunar Science Forum, visit:

    http://lunarscience2011.arc.nasa.gov

    For the complete schedule, visit:

    http://lunarscience2011.arc.nasa.gov/agenda

    For more information about the NASA Lunar Science Institute, visit:

    http://lunarscience.nasa.gov
    امضای ایشان
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    فکر کنم از درون فیلتر شدم


  8. Top | #87
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    Jun 2011
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    915
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    139
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    331
    تشکر شده 534 بار در 125 ارسال

          NASA Releases Book About Psychology of Human Spaceflight

    WASHINGTON -- NASA’s History Program Office is releasing a new book that examines the different psychological factors that affect astronauts during space travel, especially long-duration missions.

    The book, “Psychology of Space Exploration: Contemporary Research in Historical Perspective,” is a collection of essays from leading space psychologists. They place their recent research in historical context by looking at changes in space missions and psychosocial science over the past 50 years. What makes up the “right stuff” for astronauts has changed as the early space race gave way to international cooperation. Different coping skills and sensibilities are now necessary to communicate across cultural boundaries and deal with interpersonal conflicts.

    “The essays give a comprehensive overview of this complex subject, providing novel insights for behavioral researchers and historians alike,” NASA’s Chief Historian Bill Barry said. “The data is important as we work to send astronauts to Mars, which will mean longer missions without real-time communication with family and friends leading to increased potential psychosocial stresses.”

    The book’s editor, Douglas A. Vakoch, is a professor in the Department of Clinical Psychology at the California Institute of Integral Studies in San Francisco. He also is a manager at the SETI Institute.

    The book is available for purchase through the Government Printing Office at:


    For a review copy, please contact Nadine Andreassen at nadine.j.andreassen@nasa.gov

    For more information about NASA history, visit:


    For information about NASA and agency programs, visit:

    امضای ایشان
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  9. Top | #88
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    Jun 2011
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    331
    تشکر شده 534 بار در 125 ارسال

          From the Inside Out

    فایل پیوست 1878

    This image of Atlantis' payload bay, focusing on the docking mechanism, was photographed by the STS-135 crew from inside the crew cabin. The orbiter boom sensor system and a portion of the remote manipulator system's robot arm are visible in the frame, exposed during a busy third day in space for the astronauts. The photo was made shortly before the shuttle docked with the International Space Station.
    امضای ایشان
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    فکر کنم از درون فیلتر شدم


  10. Top | #89
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    Jun 2011
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    تشکر شده 534 بار در 125 ارسال

          STS-135 MCC Status Report #06


    HOUSTON – Space shuttle Atlantis’ crew will be getting down to the main objective of their mission today, as they temporarily install the Raffaello multipurpose logistics module on the International Space Station and begin unloading its contents.

    The crew started their fourth day in space at 2:02 a.m., after being awakened by the Chumbawamba song “Tubthumping.” It was played for Mission Specialist Sandy Magnus.

    Magnus, along with Pilot Doug Hurley, will be at the controls of the space station’s robotic arm beginning at 4:09 a.m. to remove the Raffaello module from the shuttle’s cargo bay. They’ll install it on the station’s Harmony node 30 minutes later.

    Once that is complete, Magnus will work with Commander Chris Ferguson to prepare the module’s hatch for opening at 12:39 p.m., after which the crew will begin unloading the 9,402 pounds of supplies it carried into space.

    In addition, Ferguson and Mission Specialist Rex Walheim will begin moving another 2,281 pounds of cargo brought up on Atlantis’ middeck over to the space station. And later in the day, the entire shuttle crew will come together with station Flight Engineers Ron Garan, Satoshi Furukawa and Mike Fossum to review the procedures for the mission’s spacewalk. Fossum and Garan will perform that spacewalk on Tuesday.

    Meanwhile, here on the ground, flight controllers were able to verify that the track of a piece of orbital debris they began watching on Saturday will not be a threat to the shuttle and station. No adjustments to the shuttle and station’s orbit will be necessary to avoid the debris, which is part of satellite COSMOS 375 and one of more than 500,000 pieces of debris tracked in Earth’s orbit.
    امضای ایشان
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  11. Top | #90
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    Jun 2011
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    331
    تشکر شده 534 بار در 125 ارسال

          STS-135 MCC Status Report #07

    Astronomical News         
    HOUSTON – Atlantis astronauts moved the Raffaello cargo carrier from the shuttle’s cargo bay to the Earth-facing port of the International Space Station’s Harmony node early Monday.

    Pilot Doug Hurley and Mission Specialist Sandra Magnus moved the multi-purpose logistics module using the station’s Canadarm2. The installation of Raffaello was completed a little after 5:45 a.m. CDT.

    After leak checks, hatches between Raffaello and the station were opened before noon. Unloading of the more than 9,400 pounds of supplies and equipment aboard Raffaello was scheduled to begin early Tuesday.

    The module is to be unloaded, then filled with 5,666 pounds of equipment and discards no longer needed on the station. It is scheduled to be taken from the Harmony node port and reinstalled in Atlantis’ cargo bay on Monday, July 18, several hours before crews of the two spacecraft say goodbye and close hatches. Atlantis is now scheduled to undock from the station that evening at 11:56 p.m.

    Mission managers said Monday afternoon Atlantis’ stay at the station would be extended for one day. The first Kennedy Space Center landing opportunity for Atlantis would be at 4:56 a.m. July 21. Landing had been scheduled for July 20, but conservation of power-generating consumables made the extension possible.

    Managers also determined that after Saturday’s inspection, further detailed inspections of Atlantis’ heat shield are not required. A customary, final inspection will be completed after Atlantis undocks from the station.

    Other activities on the crews’ schedules today included continuing transfer of items between the shuttle’s middeck and the station. Atlantis brought almost 2,300 pounds of experiments, equipment and supplies for the station in the shuttle’s middeck lockers.

    Shortly before the end of their workday, the four shuttle crew members and station Flight Engineers Ron Garan, Mike Fossum and Satoshi Furuakawa met for about an hour to review procedures for Tuesday’s spacewalk. Beginning about 7:45 a.m., Garan and Fossum, who did three spacewalks together during STS-124 in June 2008, will leave the Quest airlock for the 6.5-hour outing.

    Major spacewalk activities include retrieving a failed 1,400-pound pump module and installing it in the shuttle cargo bay for return to Earth, installing a robotic satellite refueling experiment and setting up a materials experiment.
    امضای ایشان
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    فکر کنم از درون فیلتر شدم


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