NOTHING NEW UNDER THE SUN (ALMOST)
1st July, 1905 : Ideas about the universe accepted since Newton’s time over two centuries ago are now being questioned in the light of a new theory proposed by a German-born physicist. According to the “Theory of Relativity” of Albert Einstein there is no such thing as absolute time or absolute motion. Everything – even the order in which events happen – depends on the observer. The most striking implication of the theory is that matter and energy are inter-convertible, minute quantities of matter being equivalent to vast amounts of energy. Physicists speculate that radioactivity may arise through the conversion of mass to energy. In Einstein’s universe, one absolute is the speed of light. Nothing can travel faster and curious things happen as it is approached: masses increase, distances contract.
[According to the latest theories/research even the speed of light is not as constant as it used to be 108 years ago. But on the lighter, and more understandable, note: