Let's do the shadow experiment once again on the day of equinox, 20th March
We have done the radius measurements on February 28th. This time we use Sun to give us our own Latitude and Longitude.

What are these Longitude & Latitude?

What is the equation of time?

How does one find one's own Longitude?

How does one find one's own Latitude?

All this stuff is fine, but how does one do it?

We have talked so much about Jantar Mantar.
Lets see some pics of this Observatory