It’s the first Friday of the month, which means another installment about the history of atom theory from physics professor and my dad, Dean Zollman. Here, atoms become the subject of Roman poetry. The theory might have gotten more traction if the poet had only stuck to science.—Kim
By Dean Zollman
Try this experiment at home. Find a small, bright beam of light. Sunlight coming through a small opening or the light from a video projector will do. Looking from the side of the beam, watch the motion of small particles of dust in the beam. You will see that the dust particles seem to bounce around in a somewhat random way. This motion indicates that the dust particles are colliding with invisible atoms in the air.
The effect was described by Robert Brown in 1827 and thus is called Brownian motion. The atomic explanation was presented by Albert Einstein in 1905. The discovery and explanation are considered critical events in establishing the existence of atoms.
Rewind the tape about 2,000 years. Lucretius, a Roman who died in about 55 BCE, wrote an epic poem, On the Nature of Things (De rerum natura). In this poem, Lucretius describes the science and philosophy of Epicurus, a Greek who lived about 200 years earlier.
The poem is divided into six books and is about 7,500 lines long. Books 1 and 2 describe Epicurean concept of atoms. Built on the ideas of Democritus, Epicurus added some features particularly about weight, density, and motion. He even connected the motion of atoms to free will. Lucretius was a follower of Epicurus and wrote his epic poem in Latin to convince Romans of the value of this philosophy.
Book 2 contains the following:
There’s a model, you should realize,
A paradigm of this that’s dancing right before your eyes—
For look well when you let the sun peep in a shuttered room
Pouring forth the brilliance of its beams into the gloom,
And you’ll see myriads of motes all moving in many ways
Throughout the void and intermingling in the golden rays
…
Your attention to the motes that drift and tumble in the light:
Such turmoil means that there are secret motions, out of sight,
That lie concealed in matter. For you’ll see the motes careen
Off course, and then bounce back again, by means of blows unseen,
Drifting now in this direction, now that, on every side.
You may be sure this starts with atoms; they are what provide
The base of this unrest. For atoms are moving on their own,
Then small formations of them, nearest them in scale, are thrown
Into agitation by unseen atomic blows,
From Lucretius: The Nature of Things translation by A. E. Stallings, Penguin Classics, 2007.
This short passage could have been a summary of Einstein’s ideas about the origin of Brownian motion. But it was written 2,000 years too early.
On the Nature of Things contains descriptions of atoms, their motion, and how they combine. Some by today’s standards are naïve; others like the Brownian motion are rather good.
However Epicureanism was not just science: it was also philosophy. That philosophy included components that did not sit well with many people. For example, the soul died with the body, and gods did not intervene in the affairs of humans. A small issue was that pleasure from sex was considered “unnecessary.”
As a result, 400 years after Lucretius died St. Jerome attempt to discredit him by claiming that he became insane after drinking a love potion and committed suicide. This story was propagated by Tennyson in a poem titled Lucretius. No evidence exists to support St. Jerome’s claim.
Perhaps if Epicurus had held different views of religion and sex, progress on humankind’s understanding of atoms and molecules would have moved much more quickly. Then the nuns at the Abbey of Saint Stephen in The Cross and the Dragon might have had molecular based medicine instead of herbs and prayers to help them nurse Hruodland back to health.
During a recent trip to India, I was reminded of the models of atom developed by Hindu philosophers at the same time as the Greek models were developed. More on that next time.
Previously
What Are Things Made of? Depends on When You Ask.
Ancient Greeks Were the First to Hypothesize Atoms
Dean Zollman is university distinguished professor of physics at Kansas State University where he has been a faculty member for more than 40 years. During his career, he has received three major awards—the National Science Foundation Director’s Award for Distinguished Teacher Scholars (2004), the Carnegie Foundation for the Advancement of Teaching Doctoral University Professor of the Year (1996), and American Association of Physics Teachers’ Robert A. Millikan Medal (1995). His present research concentrates on the teaching and learning of physics and on science teacher preparation.
Linda Root said:
I learned more science in high school than in college. I had a wonderful chemistry teacher who demonstrated a change in state by breaking, scrambling and eating an egg. He was an award winning chemistry teacher and wrote a leading textbook. If we had been blessed with a similarly motivated physics teacher, I might understand more of my Feynman Lectures collection.Cultivating talented science teachers is a worthy life endeavor. Congratulations to both talented Zollmans
LikeLike
Pingback: History A’la Carte 1-10-13 « Maria Grace
Pingback: Atom Theory in Ancient India « Kim Rendfeld
Pingback: Religion, Science Clashed over Atoms | Kim Rendfeld
Pingback: Medieval Arabic Scholarship Might Have Preserved Scientific Knowledge | Kim Rendfeld
Pingback: Rediscovering a Roman Poet – and Atom Theory – Centuries Later | Kim Rendfeld
Pingback: Reconciling Atom Theory with Religion | Kim Rendfeld
Pingback: Did Atom Theory Play a Role in Galileo’s Trouble with the Inquisition? | Kim Rendfeld
Pingback: Could Gifted Scientist’s Belief in Atoms Led to His Obscurity? | Kim Rendfeld
Pingback: Does Atom Theory Apply to the Earthly and the Divine? | Kim Rendfeld
Surazeus Simon Seamount said:
I am enjoying these articles about atomism.
I am writing an epic poem in blank verse I call Scientia Hermetis about philosophers and scientists. I have written tales about Leukippos, Demokritos, and Epikouros, and I am now writing a tale about Philodemos. Soon I will write tales about Copernicus and Gassendi as well.
LikeLike
Pingback: A Duchess Inspired by Atoms | Kim Rendfeld
Pingback: Separating Atoms from Atheism | Kim Rendfeld
Pingback: Isaac Newton: 300 Years Ahead of His Time | Kim Rendfeld
Pingback: Isaac Newton and the Philosopher’s Stone | Kim Rendfeld
Pingback: When Chemistry and Physics Split | Kim Rendfeld
Pingback: Redefining Elements | Kim Rendfeld
Pingback: Mme Lavoisier: Partner in Science, Partner in Life | Kim Rendfeld
Pingback: With Atoms, Proportionality and Simplicity Rule | Kim Rendfeld
Pingback: Despite Evidence of Atoms, 19th Century Skeptics Didn’t Budge | Kim Rendfeld
Pingback: Mission of the First International Scientific Conference: Clear up Confusion | Kim Rendfeld
Pingback: Rivalry over the First Periodic Table | Kim Rendfeld
Pingback: The Puzzle of Dark Lines amid Rainbow Colors | Kim Rendfeld
Pingback: The Colorful Signature of Each Element | Kim Rendfeld
Pingback: Light Waves by the Numbers | Kim Rendfeld
Pingback: Even Scientific Dead Ends Can Contribute to Knowledge | Kim Rendfeld
Pingback: Discovery of the Electron Took Decades and Multiple Scientists | Kim Rendfeld
Pingback: Heisenberg and Schroedinger Develop Equally Valuable Ideas but Criticize Each Other | Kim Rendfeld