1. DW Türkce / ÖZEL DOSYA: Maven - 2

    04:11

    from Bilim Teknik / Added

    19 Plays / / 0 Comments

    http://rss.dw.de/xml/podcast_Bilim-ve-Teknik Amerikan Uzay ve Havacılık Dairesi NASA'nın Mars'a yolladığı Maven uzay aracının konu edildiği incelemenin ikinci ve son bölümü sunuluyor. Mars Atmosphere and Volatile Evolution (MAVEN) is a space probe designed to study the Martian atmosphere while orbiting Mars. Mission goals include determining how the Martian atmosphere and water, presumed to have once been substantial, were lost over time.[3][4] MAVEN was successfully launched aboard an Atlas V launch vehicle at the beginning of the first launch window on November 18, 2013. Following the first engine burn of the Centaur second stage, the vehicle coasted in low-Earth orbit for 27 minutes before a second Centaur burn of five minutes to insert it into a heliocentric Mars transit orbit. The plan is for MAVEN to be inserted into an areocentric elliptic orbit around Mars, 6,200 km (3,900 mi) by 150 km (93 mi) above the planet's surface, on September 22, 2014.[5] The principal investigator for the spacecraft is Bruce Jakosky of the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder. The mission was spawned by NASA's Mars Scout Program, which, although discontinued in 2010, yielded Phoenix, MAVEN, and numerous missions' studies.[6] Mars Scout missions target a cost of less than US$485 million, not including launch services, which cost approximately $187 million.[7] MAVEN Atlas V ignition On September 15, 2008, NASA announced that it had selected MAVEN to be the Mars Scout 2013 mission.[1][8] There was one other finalist and eight other proposals that were competing against MAVEN. On August 2, 2013, the MAVEN spacecraft arrived at Kennedy Space Center Florida to begin launch preparations.[9] NASA scheduled the launch of MAVEN from the Cape Canaveral Air Force Station on November 18, 2013, using an Atlas V 401 rocket.[10] The probe is expected to arrive in Mars' orbit in September 2014, at approximately the same time as India's Mars Orbiter Mission. On October 1, 2013, only nine weeks before launch, a government shutdown caused suspension of work for two days and initially threatened to force a 26-month postponement of the mission. With the spacecraft nominally scheduled to launch on November 18, a delay beyond December 7 would have caused MAVEN to miss the launch window as Mars moves too far out of alignment with the Earth.[11] However, two days later, a public announcement was made that NASA had deemed the 2013 MAVEN launch so essential to ensuring future communication with current NASA assets on Mars—namely the Opportunity and Curiosity rovers—that emergency funding was authorized to restart spacecraft processing in preparation for an on-time launch.[12][13] Features on Mars that resemble dry riverbeds and the discovery of minerals that form in the presence of water indicate that Mars once had a thicker atmosphere and was warm enough for liquid water to flow on the surface.[14] Scientists suspect that over millions of years, the planet's core cooled and its magnetic field decayed, allowing the solar wind to sweep away ninety-nine percent of the atmosphere and thus most of its water and volatile compounds.[15] MAVEN is intended to determine the history of the loss of atmospheric gases to space so that answers about Martian climate evolution will emerge. From its measurements of how quickly the atmosphere escapes into space and the relevant processes, scientists will infer how the planet's atmosphere evolved. The MAVEN mission has four primary scientific objectives: Determine the role that loss of volatiles to space from the Martian atmosphere has played through time. Determine the current state of the upper atmosphere, ionosphere, and interactions with the solar wind. Determine the current rates of escape of neutral gases and ions to space and the processes controlling them. Determine the ratios of stable isotopes in the Martian atmosphere.[16] MAVEN is expected to reach Mars in September 2014. By then, the Sample Analysis at Mars (SAM) instrument suite on board the Curiosity rover will have made similar surface measurements from Gale crater, which will help guide the interpretation of MAVEN's upper atmosphere measurements.[4] MAVEN's measurements will also provide additional scientific context with which to test models for current methane formation in Mars.[17] MAVEN is built and tested by Lockheed Martin Space Systems and its design is based on those of the Mars Reconnaissance Orbiter and Mars Odyssey spacecraft. The orbiter has a cubical shape of about 2.3 meters × 2.3 meters × 2 meters high,[18] with two solar arrays that hold the magnetometers on both ends.

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    • DW Türkce / ÖZEL DOSYA: Maven - 1

      04:11

      from Bilim Teknik / Added

      24 Plays / / 0 Comments

      http://rss.dw.de/xml/podcast_Bilim-ve-Teknik Amerikan Uzay ve Havacılık Dairesi NASA'nın Mars'a yolladığı Maven uzay aracının konu edildiği incelemenin ilk bölümü sunuluyor. Mars Atmosphere and Volatile Evolution (MAVEN) is a space probe designed to study the Martian atmosphere while orbiting Mars. Mission goals include determining how the Martian atmosphere and water, presumed to have once been substantial, were lost over time.[3][4] MAVEN was successfully launched aboard an Atlas V launch vehicle at the beginning of the first launch window on November 18, 2013. Following the first engine burn of the Centaur second stage, the vehicle coasted in low-Earth orbit for 27 minutes before a second Centaur burn of five minutes to insert it into a heliocentric Mars transit orbit. The plan is for MAVEN to be inserted into an areocentric elliptic orbit around Mars, 6,200 km (3,900 mi) by 150 km (93 mi) above the planet's surface, on September 22, 2014.[5] The principal investigator for the spacecraft is Bruce Jakosky of the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder. The mission was spawned by NASA's Mars Scout Program, which, although discontinued in 2010, yielded Phoenix, MAVEN, and numerous missions' studies.[6] Mars Scout missions target a cost of less than US$485 million, not including launch services, which cost approximately $187 million.[7] MAVEN Atlas V ignition On September 15, 2008, NASA announced that it had selected MAVEN to be the Mars Scout 2013 mission.[1][8] There was one other finalist and eight other proposals that were competing against MAVEN. On August 2, 2013, the MAVEN spacecraft arrived at Kennedy Space Center Florida to begin launch preparations.[9] NASA scheduled the launch of MAVEN from the Cape Canaveral Air Force Station on November 18, 2013, using an Atlas V 401 rocket.[10] The probe is expected to arrive in Mars' orbit in September 2014, at approximately the same time as India's Mars Orbiter Mission. On October 1, 2013, only nine weeks before launch, a government shutdown caused suspension of work for two days and initially threatened to force a 26-month postponement of the mission. With the spacecraft nominally scheduled to launch on November 18, a delay beyond December 7 would have caused MAVEN to miss the launch window as Mars moves too far out of alignment with the Earth.[11] However, two days later, a public announcement was made that NASA had deemed the 2013 MAVEN launch so essential to ensuring future communication with current NASA assets on Mars—namely the Opportunity and Curiosity rovers—that emergency funding was authorized to restart spacecraft processing in preparation for an on-time launch.[12][13] Features on Mars that resemble dry riverbeds and the discovery of minerals that form in the presence of water indicate that Mars once had a thicker atmosphere and was warm enough for liquid water to flow on the surface.[14] Scientists suspect that over millions of years, the planet's core cooled and its magnetic field decayed, allowing the solar wind to sweep away ninety-nine percent of the atmosphere and thus most of its water and volatile compounds.[15] MAVEN is intended to determine the history of the loss of atmospheric gases to space so that answers about Martian climate evolution will emerge. From its measurements of how quickly the atmosphere escapes into space and the relevant processes, scientists will infer how the planet's atmosphere evolved. The MAVEN mission has four primary scientific objectives: Determine the role that loss of volatiles to space from the Martian atmosphere has played through time. Determine the current state of the upper atmosphere, ionosphere, and interactions with the solar wind. Determine the current rates of escape of neutral gases and ions to space and the processes controlling them. Determine the ratios of stable isotopes in the Martian atmosphere.[16] MAVEN is expected to reach Mars in September 2014. By then, the Sample Analysis at Mars (SAM) instrument suite on board the Curiosity rover will have made similar surface measurements from Gale crater, which will help guide the interpretation of MAVEN's upper atmosphere measurements.[4] MAVEN's measurements will also provide additional scientific context with which to test models for current methane formation in Mars.[17] MAVEN is built and tested by Lockheed Martin Space Systems and its design is based on those of the Mars Reconnaissance Orbiter and Mars Odyssey spacecraft. The orbiter has a cubical shape of about 2.3 meters × 2.3 meters × 2 meters high,[18] with two solar arrays that hold the magnetometers on both ends.

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      • An introduction to Apache Maven

        01:56

        from Mike Frampton / Added

        13 Plays / / 0 Comments

        A short introduction to Apache Maven, what is it and how is it used for Java based builds. How does it work and what other tools are used ?

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        • Alpha Solus

          01:51

          from Maven / Added

          115 Plays / / 0 Comments

          Promo video for medical instruments used in Lumbar Interbody Fusion. Client: Interact Medical Our involvment: Shading, animation, lighting and rendering, post production.

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          • CWS - Giga Booster & Weekend Fiesta

            00:45

            from Maven / Added

            189 Plays / / 1 Comment

            Promotion of "Giga Booster" & "Weekend Fiesta" for Cable and Wireless Seychelles. The future is with CWS.

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            • SEGOLENE ı A.R.Z CRYSTALS JEWELRY CAMPAIGN

              02:59

              from Maven Management / Added

              822 Plays / / 0 Comments

              SEGOLENE ı A.R.Z CRYSTALS JEWELRY CAMPAIGN Maven Management Montreal Model Agency

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              • Joe Foster - Pad Na Jou Hart (Official Video)

                04:05

                from Joe Foster / Added

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                Words & Music: Joe Foster Performed: Joe Foster Album: Pad Na Jou Hart (Soundtrack - Various Artists) - © LUISTERNET MUSIEK (JANUARY 2014) Music Video: Valo Pictures Film Footage: The Film Factory Die debuut enkelsnit waarvoor ons gewag het is uiteindelik hier. JOE FOSTER se PAD NA JOU HART is die tema lied vir die Film met dieselfde naam. Hierdie treffer is een van 2 oorspronklike liedjies wat JOE FOSTER spesifiek vir die film geskryf het. "OORLOG VIR JOU MAAK" wat geskryf is deur byde JOE FOSTER en JOHAN C VENTER word ook in die film gebruik as die lied wat deur die karakters "MIKE EN DIE MANNE" opgetree word. Die Rom-Com film wat deur Ivan Botha en Donnalee Robberts geskryf is, waarvan hulle ook die hoofrolle vertolk wys die 14 Feb 2014 in teaters reg oor Suid Afrika, en beloof om een van Suid Afrika en Afrikaans se bestes te wees. JOE FOSTER speel ook 'n rol in die film as een van die 3 manne van "MIKE EN DIE MANNE", 'n folk-rock band. PAD NA JOU HART - KLANKBAAN KOMPILASIE met JOE FOSTER se PAD NA JOU HART sal ook op die rakke wees Januarie 2014 by alle goeie musiek winkels. © 2014 LuisterNet Musiek PAD NA JOU HART (SONG) © Copyright 2013 - The Artist Refinery (by Recycle Records & Music) WAT LE VOOR VIR JOE FOSTER? JOE FOSTER is tans hard besig om te skryf en op te neem aan sy debuut album HARTKLANK wat teen Mei 2014 op die rakke sal wees. JOE FOSTER en die HARTKLANK BAND (JAKE, TAIN en HODGE) slaan ook toe op die SA verhoe vanaf Maart 2014. Vir besprekings gaan na www.joefoster.co.za of www.mavenmusic.co.za www.joefoster.co.za www.facebook.com/JoeFosterMusiek www.twitter.com/JoeFosterMusiek www.youtube.com/JoeFosterSongs Artist Bookings: bookings@mavenmusic.co.za Artist Management: jake@mavenmusic.co.za Promotion: alishia@starburstmusic.co.za

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                • Inside Boulder News - Mars MAVEN Mission

                  00:58

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                  This is a video segment from the November 22nd, 2013 Inside Boulder News. For more videos, visit: BoulderChannel8.com

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                  • Mission to Mars' Atmosphere

                    02:07

                    from ucberkeleycampuslife / Added

                    21 Plays / / 0 Comments

                    UC Berkeley staff assembled today at the Space Sciences Laboratory to watch NASA's newest Mars-bound mission, MAVEN, blast off. More than half of the instruments aboard the spacecraft were built at UC Berkeley. MAVEN was designed to find out why Mars lost its atmosphere and water. Scientists believe that Mars once had an atmosphere, oceans and rivers similar to Earth. Yet today it is a red and dusty sphere drier than any desert on Earth. From its Martian orbit, the spacecraft will collect evidence to support or refute the reigning theory that the main cause was loss of its magnetic field 3.5 to 4 billion years ago, which allowed the solar wind and solar storms to scour the atmosphere away. Water not frozen under the surface would have quickly disappeared also. The answer to this question will give planetary scientists a hint of what the future may bring for other planets, including Earth. Berkeley scientists built two-thirds of the instruments in the Particles and Fields Package aboard the spacecraft. These instruments will characterize the solar wind and the ionosphere of the planet. Video by Roxanne Makasdjian, UC Berkeley Media Relations Graphic animation and footage of satellite, courtesy of NASA full story: https://newscenter.berkeley.edu/2013/...

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