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Our whole universe was in a hot, dense state Then nearly fourteen billion years ago expansion started, wait The earth began to cool, the autotrophs began to drool Neanderthals developed tools We built a wall (we built the pyramids) Math, science, history, unraveling the mysteries That all...

While Einstein is credited with the saying it was between 1842 and 1847, Julius Robert von Mayer , James Prescott Joule , and Hermann von Helmholtz discovered and formulated the basics of what we refer to today as the law of conservation of energy: Energy cannot be created or destroyed; it can...

It started when the stopper was fitted to the snow globe that we call the galaxy