Predictions by Scottish mathematician and physicist Lord Kelvin, president of the Royal Society:

• “X-rays will prove to be a hoax.” (1883)
• “Heavier-than-air flying machines are impossible.” (1895)
• “Radio has no future.” (1897)

Speaking to the British Association for the Advancement of Science in 1900, he said, “There is nothing new to be discovered in physics now; all that remains is more and more precise measurement.” Einstein’s annus mirabilis came five years later.