Here are the measurements I used, starting with the longest pendulum and moving toward the shortest: 230mm, 211mm, 196mm, 183mm, 170mm, 159mm, 149mm, 140mm, 131mm, 124mm, 117mm, 110mm, 105mm, 99mm ...

A SHORTT free pendulum clock has recently been installed at the Science Museum, South Kensington, and is now at work controlling the main public dials of the Museum. The Shortt clock was perfected ...

Powered by one single pendulum clock, it provides a realistic image of the positions of the Sun, the Moon, the Earth and five other planets (Mercury, Venus, Mars, Jupiter and Saturn). The planets ...

How high can you go with towers made from tennis balls? Andria Rogava brings you his crazy, new 12-storey edifice. Now, in the latest exciting development, I have built a new, record-breaking tower ...

The result is a clock with a total a total systematic uncertainty of 2.2×10⁻¹⁶ — a precision that means it loses less than a second every 140 million years. This extremely subtle lag is ...

length of the string and the amplitude (the maximum angle) of oscillation.

In the foreword of the book, NCERT Director Dinesh Prasad Saklani writes, “The content attempts to integrate science subjects such as physics, chemistry ... yantra was eventually replaced by pendulum ...

The historic Ladd Observatory opened in 1891 under the direction of Prof. Winslow Upton. A regular program of transit observations and timekeeping was started in 1893. Prof. Charles Smiley, famous for ...

Newly created by Hardin Planetarium, we explore how our ancestors kept track of the change of time. Learn the basics of sundials, including how to build one. Discover why ancient peoples divided the ...