Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: June 7, 2025
Airy combined the functions of both, and employed the same constructors as before to make a transit-circle with a telescope of eleven and a-half feet focus and a circle of six-feet diameter, the object-glass being eight inches in diameter. Airy, like Bradley, was impressed with the advantage of employing stars in the zenith for determining the fundamental constants of astronomy.
Word Of The Day
Others Looking