One of the first video games, "Spacewar!" was developed in 1962 by Steve Russell and others at MIT on a PDP-1 minicomputer.

"A physical law must possess mathematical beauty." — Paul Dirac

"I regard consciousness as fundamental. I regard matter as derivative from consciousness. We cannot get behind consciousness." Author: Max Planck Source: Interview, The Observer (London), 25 January 1931

Maxwell's equations have had a greater impact on human history than any ten presidents. - Carl Sagan

"It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about nature." - Niels Bohr

"Only a few know, how much one must know to know how little one knows." -- Werner Heisenberg (1901 - 1976)

The shortest chapter ever in a Physics book. From "Why String Theory?" by Joseph Conlon, CRC Press.

How small is too small? How hot is too hot? The Planck units answer these questions using only the fundamental constants of nature, revealing the scales where space, time, energy, and gravity are expected to behave in ways our current theories cannot fully describe.

July 3, 1977: The first magnetic resonance imaging (MRI) exam on a live human patient was performed. MRI, identifies atoms by how they behave in a magnetic field, and is an extremely useful non-invasive method for imagining internal bodily structures and diagnosing disease.

Albert Einstein talking about God in a letter to Max Born "I, at any rate, am convinced that He does not throw dice."

Maxwell's equations have had a greater impact on human history than any ten presidents. - Carl Sagan

"If all of mathematics disappeared, physics would be set back by exactly one week." - Richard P. Feynman

Maxwell's equations have had a greater impact on human history than any ten presidents. - Carl Sagan

"If all of mathematics disappeared, physics would be set back by exactly one week." - Richard P. Feynman

"If all of mathematics disappeared, physics would be set back by exactly one week." - Richard P. Feynman

Stunning photograph of the total solar eclipse on July 11, 1991, taken by Antonio Turok in Chiapas, Mexico.

“The "Mind of God," which Einstein wrote eloquently about, is cosmic music resonating throughout hyperspace.” ― Michio Kaku, Parallel Worlds

July 11: On this day in 1711, Georg Wilhelm Richmann was born — a Baltic German physicist in Russia who made early advances in electricity and calorimetry. He died tragically in 1753 while conducting an experiment during a thunderstorm, reportedly struck by ball lightning.

“Never express yourself more clearly than you are able to think” ― Niels Bohr

Bayes' theorem is used to update the probability for a hypothesis as more evidence or information becomes available. Bayes' approach to probability was notably different from the frequentist approach, which dominated statistical methods at the time.

Werner Heisenberg's canonical commutation rule for position and momentum variables of a particle, 1927.

“In his youth Albert Einstein spent a year loafing aimlessly. You don't get anywhere by not 'wasting' time- something, unfortunately, that the parents of teenagers tend frequently to forget.” ― Carlo Rovelli, Seven Brief Lessons on Physics

“Things are the way they are in our universe because if they weren't, we wouldn't be here to notice.” ― Brian Greene, The Elegant Universe

In 1704, Sir Isaac Newton predicted that the world would end in 2060.

“We understand the world in its becoming, not in its being.” — Carlo Rovelli

Mathematician Srinivasa Ramanujan’s personal handwritten mathematical notes and letters.

Niels Bohr and Werner Heisenberg together on a skiing vacation in Tyrol, 1932. As always, Bohr is taking notes.

Maria Skłodowska-Curie's handwritten notes on radioactivity. Courtesy of Wellcome images.

It is by logic that we prove, but by intuition that we discover. — Henri Poincaré

The individual is ephemeral, races and nations come and pass away, but man remains. - Nikola Tesla