Tag Archives: xkcd

A Mole of Moles

Posted on January 24, 2015 by pMurs

Like most freshmen at Vanderbilt, I took Chemistry 102a during my first semester. On the first day of class, we (ostensibly, seeing as I slept through it) discussed the concept of a mole. A mole is a unit of measurement, generally used to describe the number of atoms or molecules of something, of which there […] Continue reading →

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Near Speed of Light Travel in the Atmosphere

Posted on January 25, 2013 by fathomingthestars

When physics classes learn about relativity, typical problems involve calculating relative velocities, masses, or distances for objects moving near the speed of light, 3 * 10^8 m/s.  These objects might be objects like spaceships, travelling in outer space, but they are often more common objects like cars and trains, or even baseballs.  The two different […] Continue reading →

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