What was Einstein's miracle year?
In 1905, often called Albert Einstein's "miracle year," he published four groundbreaking papers, including special relativity and the idea behind E=mc².
Reference: Encyclopaedia Britannica
In 1905, often called Albert Einstein's "miracle year," he published four groundbreaking papers, including special relativity and the idea behind E=mc².
Isaac Newton built the first practical reflecting telescope in 1668, using a curved mirror instead of lenses to gather light.
Oranges became a traditional Christmas stocking gift because they were once a rare winter treat.