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  2. Lists of problems - Wikipedia

    en.wikipedia.org/wiki/Lists_of_problems

    The following articles contain lists of problems: List of philosophical problems; List of undecidable problems; Lists of unsolved problems; List of NP-complete problems;

  3. Sumitomo Rubber Industries - Wikipedia

    en.wikipedia.org/wiki/Sumitomo_Rubber_Industries

    Sumitomo Rubber Industries, Ltd. (住友ゴム工業株式会社, Sumitomo Gomu Kōgyo Kabushiki-gaisha) is a global tire and rubber company based in Japan. It is part of the Sumitomo Group . The company makes a wide range of rubber based products, including automobile tires , golf balls and tennis balls.

  4. Sumitomo Heavy Industries - Wikipedia

    en.wikipedia.org/wiki/Sumitomo_Heavy_Industries

    Almost 50 years later, in 1934, the company incorporated as Sumitomo Machinery Co., Ltd. to manufacture machinery for the steel and transportation industries in support of that period of rapid economic growth. In 1969, Sumitomo Machinery Co., Ltd. merged with Uraga Heavy Industries Co., Ltd. to create Sumitomo Heavy Industries, Ltd.

  5. Category:Lists of unsolved problems - Wikipedia

    en.wikipedia.org/wiki/Category:Lists_of_unsolved...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  6. Sumitomo Corporation - Wikipedia

    en.wikipedia.org/wiki/Sumitomo_Corporation

    Sumitomo Corporation (Japanese: 住友商事株式会社, Hepburn: Sumitomo Shōji kabushiki gaisha) is one of the largest worldwide sōgō shōsha general trading companies, and is a diversified corporation. The company was incorporated in 1919 and is a member company of the Sumitomo Group.

  7. Sumitomo Group - Wikipedia

    en.wikipedia.org/wiki/Sumitomo_Group

    Sumitomo Corporation* Integrated trading: Sumitomo Electric Bordnetze: Auto parts suppliers Sumitomo Electric Industries, Ltd.* Electronics and electric products Sumitomo Forestry Co., Ltd. Lumber and housing: Sumitomo Heavy Industries* Machinery, weaponry, and shipbuilding Sumitomo Life: Insurance: Nippon Steel* Steel: Sumitomo Metal Mining Co ...

  8. List of unsolved problems in geoscience - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    The 'space problem': How are granite magma chambers emplaced in the crust? [12] What are the structures and locations of the magmatic systems that might cause supervolcanoes? What are the viscosities and densities of the magma chambers and the details of magma migration? [13] What are the non-uniformities and rheological details of the mantle?

  9. Geomechanics - Wikipedia

    en.wikipedia.org/wiki/Geomechanics

    The two main disciplines of geomechanics are soil mechanics and rock mechanics.Former deals with the soil behaviour from a small scale to a landslide scale. The latter deals with issues in geosciences related to rock mass characterization and rock mass mechanics, such as applied to petroleum, mining and civil engineering problems, such as borehole stability, tunnel design, rock breakage, slope ...