Images of India - Jantar Mantar Observatory at Delhi

(Click on an image for a larger view.)

The Jantar Mantar Observatory was built in 1725 by the astronomer Jai Singh. It is quite something to see, though there is actually a much larger observatory in Rajasthan.
The hypotenuse of this triangle is lined up to be parallel to the earth's axis of rotation, while there is a semicircular band (not shown) which is lined up with the earth's equator. The upshot, is that this instrument can be used to tell the time, by observing where the shadow of the hypotenuse falls on the band!
Sowmya, standing next to the sundial. Part of the band referred to above is to her left.
I don't really know what this is, but it looks cool.
Sowmya, walking down the sun dial.

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