ALBERT EINSTEIN SIGNED & INSCRIBED TIME MAGAZINE JULY 1 1946 inscribed E=mc2. Albert Einstein's Big Idea E = MC2. It's the world's most famous equation, it can be quoted by scientists and non-scientists alike, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing. This item comes with a letter of authenticity issued by Guaranteed Forensic Authenticators along with the GFA guarantee of authenticity.

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