Tuesday, June 21, 2011

    QUESTION

    First example of which instrument...

    Send your answers to ::
    quizinc.nitdgp@gmail.com

    7 attempts:

    Aaghran said...

    First Seismometer

    Swashbuckler said...

    Seismograph

    Subhrangsu said...

    no idea about country person is SRK

    Anonymous said...

    device used by the chinese to detect the epicentre of earthquake.

    Aaghran said...

    is it the first seismometer

    pranav said...

    seismograph

    indian said...

    Zhang Heng of China's Han dynasty invented the first seismoscope in 132 AD.