The device would have had a yield approximately double that of the combined explosive power of all nuclear weapons in ...

This is a horizontal compass sundial, made of gilded silver. It is of 'Butterfield' type, named after English manufacturer ...

Fun fact: Edward Teller was one of Stanley Kubrick’s inspirations for the bomb-giddy character of Dr. Strangelove in the 1964 film of the same name.

As the sun moved across the sky above, the shadow of the gnomon or pin would trace the reverse of its course through the inscriptions on the curve below. The hemispherium was carved out of a block of ...

Another solution is the equinoctial, or equatorial, sundial. The hour marks are drawn ... in the dial being parallel to the equator. The gnomon points at the North star, which means that it ...

This string is the gnomon (pronounced no-mun) and casts the shadow to indicate the time. To provide accurate time, the sundial (1) must be orientated with the gnomon pointing North/South ...

How do sundials work? A sundial uses a shadow cast by a thin rod called a gnomon on to a flat surface etched with different times. The latitude and gradient are taken into account to decide the ...

This astronomical observatory houses the iconic Samrat Yantra, the largest stone sundial in the world. Towering at an ...

Sundials operate by casting a shadow with a gnomon (a pointer ... the shadow on a sundial moves in a circular path from left to right. This natural movement of shadows was well-known long before ...