Tag Archives | electrons

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Ep. 393 – The Standard Model, Leptons & Quarks

Physicists are getting a handle on the structure of the Universe, how everything is made of something else. Molecules are made of atoms, atoms are made of protons, neutrons and electrons, etc. Even smaller than that are the quarks and the leptons, which seem to be the basic building blocks of all matter. Download the […]

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Ep. 378: Rutherford and Atoms

Physicists knew the interior of the atom contained protons, neutrons and electrons, but they didn’t understand exactly how they were organized. It took Ernest Rutherford to uncover our modern understanding. Download the show [MP3] | Jump to Shownotes | Jump to Transcript (more…)

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Ep. 377: Thomson finds Electron

At the end of the 19th century, physicists were finally beginning to understand the nature of matter itself, including the discovery of electrons – tiny particles of negative charge that surround the nucleus. Here’s how J.J. Thompson separated the electrons from their atoms and uncovered their nature. Download the show [MP3] | Jump to Shownotes […]

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Ep. 372: The Millikan Oil Drop

In 1909 Robert Millikan devised an ingenious experiment to figure out the charge of an electron using a drop of oil. Let’s talk about this Nobel Prize winning experiment. Download the show [MP3] | Jump to Shownotes | Jump to Transcript (more…)

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Ep. 335: Photoelectric Effect

Pop quiz. How did Einstein win his Nobel prize? Was it for relativity? Nope, Einstein won the Nobel Prize in 1921 for the discovery of the photoelectric effect; how electrons are emitted from atoms when they absorb photons of light. But what is it? Let’s find out. Download the show [MP3] | Jump to Shownotes […]

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