Upon seeing the robins, I wondered where the earthworms are. The answer is that many of them are as much as six feet underground, below the frost line, waiting for the soil to warm up. They burrowed down there last fall, formed a protective, slimy ball around themselves and hunkered in. Some types of worms produce a non-toxic antifreeze that keeps them alive all winter. Others lay eggs in cocoons in the soil (these look like little pearls) in late fall and then die; the eggs hatch when the ground is warm enough.
The One-Sentence Challenge
Back to physics for a moment. One of the greatest and most creative physicists ever was Richard Feynman, who made major contributions to quantum mechanics, worked on the Manhattan Project, and was the scientist who figured out that a faulty O ring caused the Challenger disaster. As a professor he was known for trying hard to describe even the most complex concepts in comprehensible terms. He believed that if a subject couldn't be explained so that a college freshman could grasp it, scientists didn't adequately understand the subject themselves.
Here's a thought-provoking question Feynman once asked: "If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generation of creatures, what statement would contain the most information in the fewest words?"
That is an intriguing question to ask not only about science but also any other field. What would that sentence be if it had to convey all of our collective knowledge about art? Or baseball? Or music? What one sentence, if passed on to a future generation, would best describe and explain you personally? I'd love to hear any suggestions you have—a single sentence on any topic.
For the record, here is Feynman's one science sentence: "All things are made of atoms, little particles that move around in perpetual motion, attracting each other when they are a little distance apart but repelling upon being squeezed into one another."
One More Thing...
In his talk on the tininess of atoms and sub-atomic particles, Professor Pollock passed on this poem from Jonathan Swift, the Irish writer better known for Gulliver's Travels and A Modest Proposal:
So, naturalists observe, a flea Has smaller fleas that on him prey; And these have smaller still to bite 'em And so proceed ad infinitum.
Five Questions Actor Alan Alda is a science geek. He is a founding member of the Stony Brook University Center for Communicating Science. This week he published an essay in the journal Science challenging scientists to more clearly explain their theories and findings. He launched a month-long contest in which the challenge is to answer the question "What is a flame?" so than an 11-year-old can understand it. A panel of 11-year-olds will choose the winner. Entries can be in the form of writing, video or graphics and can be submitted to the website: http://www.flamechallenge.org/