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Lao
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Who developed the seismograph?
There are several people who are believed to have contributed to the development of the seismograph. The main man is John Milne and the others include Luigi Palmieri, Thomas Lomar Gray and James Alfred Ewing.
Can you teach us fighting techniques?
Instruction in Self Defense and martial arts is best done with a qualified instructor present. I'd be happy to teach a seminar on self-defense as I do several times a year, but I'm not going to do it over the internet!
What are the prevention techniques for earthquake?
The prevention technique for earthquake can be to bore pipe deep into the gas producing molten rock layers at several places in the earthquake prone areas, maybe several kilometers down, like it is done to harness oil from about 5 kilometers deep. The gas can be collected for some use round the year and it would prevent excess pressure building up and causing earthquake.
What artist painted a Victorian sleeping woman with cherubs around her playing musical instruments with people dancing in the top left hand corner of the painting with initials HZ in the bottom left?
Hans Zatzka, an Austrian artist. He also painted under several other names including Hans Zabateri.
Is the mass of earth decreasing?
Decreasing just a bit, but it is going to be several billion years before it becomes a problem. I wouldn't worry about it.
