collect information about working of natural geysers
and prepare a report . And tell all about natural geysers in your "OWN" words please
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the earlier manufactured mirrors were the pieces of polished stones. parabolic mirrors were described and studied in classical antiquity by the mathematician diodes in his work on burning mirrors. In china people began making mirrors with the use of silver mercury amalgams as early as 500AD. In 16th century, venice, a big city formed for its glass making expertise, became a centre of mirror production using this new technique.
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Natural geyser were the hot streams. These made the hot bath.
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