Category Archives: Physics

March Meeting — Guest Blog by Carlos Owusu-Ansah ’21

I thought the March APS meeting was fantastic. It felt great to present our research findings to people who cared about what Dr. Lindner and I were working on at the College. I attended fun talks about astronomical phenomena and … Continue reading

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March Meeting — Guest Blog by Katie Shideler ’21

Having never been to a physics conference, or even to the city of Boston, attending the annual American Physical Society’s March Meeting was all around a new and incredible experience. Being able to present my research to physicists from across … Continue reading

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March Meeting 2019 Boston

I’m currently in Boston for the 2019 March Meeting, which is as exciting, overwhelming, and exhausting as usual! You may remember last March Meeting, we were in LA, which was naturally nice and warm.  Boston welcomed the March Meeting with … Continue reading

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Relativistic Colors

Metallium, Inc. is attempting to manufacture coins made from as many different metals (and elements) as possible, typically 99 to 99.9% pure. My Metallium coin collection currently includes aluminum, titanium, iron, nickel, copper, zinc, silver, tin, and gold coins. Most … Continue reading

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720° untangles 360° tangles

Despite growing up in three dimensions, as a kid I did not recognize one of 3D’s deep and subtle properties: full rotations tangle, but double rotations untangle! Following physicist Paul Dirac, twist a belt one full turn about its length. … Continue reading

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1+2+3+… = -1/12?

In quantum electrodynamics, the bare charge of an electron is infinite, but the renormalized dressed charge is finite. The bare electron shields itself by polarizing the virtual electron-positron pairs of the nearby quantum vacuum to reduce its coupling at large distances to in natural … Continue reading

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A Better Table

The periodic table of the elements is almost as old as The College of Wooster, and I am a big fan. As we approach next year’s sesquicentennial of Dmitri Mendeleev‘s 1869 periodic table, I present a modest addition to the … Continue reading

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Math Grenade

I just bought a new calculator. New to me, that is, but older than me. Inspired by the 1600s Gottfried Leibniz stepped cylinder and the 1800s Thomas de Colmar arithmometer, the Curta mechanical calculator design was developed by Curt Herzstark while … Continue reading

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Optical Tweezers

A focused light beam can trap a small particle, such as a micron-sized latex sphere (or biological cell). If the sphere is much larger than the light’s wavelength, ray optics suffices to explain the trapping. Light bends as it passes … Continue reading

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Dr. Rendezvous

Edwin Aldrin earned his PhD from MIT in 1963 with a thesis titled, “Line-of-sight guidance techniques for manned orbital rendezvous”. Just three years later in 1966, Aldrin was the pilot of Gemini XII, the last flight of the Gemini program, … Continue reading

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