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A century ago, How Alexander Friedmann envisioned the universe’s expansion
299 Hits Vennila May 22, 2022, 7:48 PM
In 1922, Alexander Friedmann (shown) outlined multiple possible histories of the universe. Cosmic expansion was among those possibilities.
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A century ago, How Alexander Friedmann envisioned the universe’s expansion
May 22, 2022, 7:48 PM Vennila