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The Ivuna meteorite, kutoka Tanzania obtained from a US private collection.

Discussion in 'Jukwaa la Siasa' started by Mzeeba, Jun 22, 2008.

  1. Mzeeba

    Mzeeba Senior Member

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    Jun 22, 2008
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    A rare type of meteorite that could hold clues to the birth of our Solar System has been bought by London's Natural History Museum.

    The Ivuna meteorite, obtained from a US private collection, has the same chemical make-up from which the Solar System formed 4.5 billion years ago. It landed in Tanzania in 1938 as one 705g stone, since split into samples. Pieces from the UK sample, the largest in any public collection in the world, will be removed for study.

    Most Ivuna samples are held in private collections, or by the Tanzanian government. Ivuna's chemical make-up, which matches the Sun, is extremely rare - just nine of the 35,000 known meteorites, or 0.03%, have this solar composition. Dr Caroline Smith, meteorite curator at the Natural History Museum (NHM), told BBC News: "These types of meteorite are very susceptible to alteration on Earth. Changes in humidity, for example, can change their composition.

    "But this meteorite is important as it fell relatively recently and has been kept under nitrogen in a sealed environment for the last two or three decades. "It's a particularly important specimen to science because it's been so well preserved. We're all incredibly excited about it because it's so pristine."

    Monica Grady, professor of planetary sciences at the Open University in Milton Keynes, commented: "This is fantastic for the UK's meteorite experts. This material represents the crumbs from the foundation of the Solar System. It's an unbelievable opportunity to study it in close-up. "The museum has been very bold in acquiring it."
    One question that Ivuna could help answer is how the chemical building blocks for life came to Earth.

    Important components of so-called pre-genetic material, the amino acids b-alanine and glycine, were found in Ivuna in a 2001 study. Last week, scientists at Imperial College London confirmed that a meteorite called Murchison contained extra-terrestrial molecules that were the precursors to DNA and RNA.

    In addition to being used for research, Ivuna will be a star specimen in a new meteorites gallery, which the NHM is planning for the near future. "The plan is to take the meteorite to Nasa's Johnson Space Center in Houston, where we'll have a 20g piece taken off and that will be sub-divided into two 10g pieces," Dr Smith explained. "One piece will be put to one side. The other will be divided into 200mg allocations - less than the size of your fingernail - for researchers to study." http://news.bbc.co.uk/2/hi/science/nature/7464583.stm




    Je na hili la umuhimu mkubwa katika ulimwengu wa sayansi nalo tumeuza? Labda hatuna maabara zenye uwezo, na wataalamu wa kulifanyia utafiti. Je kama taifa tumeambulia nini hapa au ndio yale yale!!!
     
  2. Kuhani

    Kuhani JF-Expert Member

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    Jun 22, 2008
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    Mkuu, mimi hapo ndio nilichoka akili.

    Niliiona clip ya hiyo story BBC, wanasema Mmarekani kakipata hicho kijipande cha jua kutoka Serikali ya Tanzania. Nani kampa? Kauziwa shilingi ngapi huyo Mmarekani jamani? Si tungekitunza tu, kieleweke? Inafedhehesha ile mbaya yani.
     
  3. R

    Rodelite JF-Expert Member

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    Huyo mBongo aliyeiuza kwa mMarekani anabembea siku nyingi kwenye $$$$$$ ............inaelekea ni mtu "selfish" sana.......Story kama hii inaudhi sana.
     
  4. jmushi1

    jmushi1 JF-Expert Member

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    Na ndio maana nilitaka kujua pamoja na mambo mengine...Sirkali imewapa nini wamarkanii!
     
  5. Kichuguu

    Kichuguu Platinum Member

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    Jun 22, 2008
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    Unajua kwetu tumefundishwa kuwa "La Kuvunda Halina Ubani". Sitaki kumaanisha kuwa Tanzania ni ya kuvunda tu, kuna siku mambo yatabadilika.
     
  6. Lunyungu

    Lunyungu JF-Expert Member

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    Jun 22, 2008
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    Tukisha recover je tutaenda kuomba Ivuna yetu irudi ama ndiyo imetoka .JK na hili atasema ni siri za Serikali ? Ndiyo wanataka tukae kimya kwa njia hii kweli ?
     
  7. FairPlayer

    FairPlayer JF-Expert Member

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    Jun 22, 2008
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    Jamani kabala ya kulaumu tujue kwanini ipo huko. Labda hatuihitaji au hatuwezi kuitunza. toeni benefit of doubt kwanza.
     
  8. Pundit

    Pundit JF-Expert Member

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    Inawezekana ni some Barrick Gold walipewa tax holiday, wakachukua meteorite kiulaini bila hata kulipia...
     
  9. FairPlayer

    FairPlayer JF-Expert Member

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    Jun 22, 2008
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    Aliigundua Sinclair, akaichukua. LOL
     
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