Physical Science







Reflections on Einstein

One of my earliest recollections of the name of Albert Einstein comes from what might seem the unlikeliest of sources. Comic, Sid Caesar, used to do an impression of a “mad scientist” on the classic “Show of Shows” television series…
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Cryptography Explained

Cryptography Primarily, cryptography describes the art and science of sending hidden messages. As described by mathematician Simon Singh, in his book The Code Book, the field of encryption consists of a never-ending war between cryptographers, who hide information, and also…
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The Kuiper Belt

The Kuiper belt is a region of the solar system that lies further beyond the orbit of Neptune. The Kuiper belt is populated by objects, including asteroids, comets and other ice dwarfs. The name with which these objects are collectively…
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Cold Welding

Cold welding involves joining two pieces of metal together using intense pressure and without the application of heat. Cold welding is a solid state process in which pressure at ambient temperature initiates coalescence between two metals. The pressure produces deformation…
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