“What is now proved was once only imagined.”- William Blake.
“To see a World in a Grain of Sand
And a Heaven in a Wild Flower,
Hold Infinity in the palm of your hand
And Eternity in an hour.”
When William Blake wrote those words in his “Auguries of Innocence” in 1803 he likely didn’t imagine we would one day have the technology to actually “see a world in a grain of sand” but with Gravity Probe B we pretty much do.