Andrew Mason's latest activity
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Andrew Mason replied to the thread Undergrad Why ##a^0=1##?.If ##a^0\ne 1## then ##a^0\ne -e^{\pi i}## and the beauty of mathematics would be gone. AM -
Andrew Mason replied to the thread The ugliest moon in the solar system.Hmmm. So those green craters on the pizza at the bottom of my fridge could be due to radioactivity?! I thought it was just the usual... -
Andrew Mason replied to the thread Graduate Musing on the Foundations of Statistical Mechanics.There are other threads that discuss the similarities and differences between thermodynamic entropy Boltzmann entropy and Clausius... -
Andrew Mason replied to the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation.The radius of Jupiter at the equator is 71,500 km and the radius of Io’s orbit is 422,000 km. The radius of Jupiter’s orbit about the... -
Andrew Mason reacted to haruspex's post in the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation with
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Bingo. As should have been obvious, it would not have been possible to time an individual transit since that is defined as the period Io... -
Andrew Mason replied to the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation.Whether Earth is moving toward or away from Jupiter is almost immaterial in itself. The orbital period of Io is about 42.5 hours. In... -
Andrew Mason replied to the thread Simple kinematics problem — falling from a geostationary satellite.As Berkeman has pointed out you would need to cancel the marble’s orbital speed first in order for the marble to drop vertically to the... -
Andrew Mason replied to the thread Thermodynamics of capacitor filled with a linear ideal gas dielectric.If the thermodynamic work done by the gas changes the polarization of the gas molecules, that would be taken into account in the change... -
Andrew Mason replied to the thread Thermodynamics of capacitor filled with a linear ideal gas dielectric.How can you determine the gas polarization energy if you aren’t given any information about the polar nature of the gas molecules? AM -
Andrew Mason replied to the thread Thermodynamics of capacitor filled with a linear ideal gas dielectric.You have found an easier way to solve the problem by noticing that ##a=3/2=\gamma##, the adiabatic constant (Cp=3R;Cv=2R). So the... -
Andrew Mason replied to the thread Thermodynamics of capacitor filled with a linear ideal gas dielectric.The use of capital V for volume and voltage is confusing. I will use lower case ##v## for voltage and upper case ##V## for volume. Your... -
Andrew Mason replied to the thread Engineering Drawing Acceleration Diagram with Coriolis Acceleration.Just so I am clear on the linkage, the angle of BD to the extension of BC is a fixed 120° and B is free to slide along BC. You are... -
Andrew Mason replied to the thread Did humans migrate a lot in prehistoric times?..... Wade is a journalist and has developed his own 'theories' about race and genetics. He has come under a lot of criticism for his... -
Andrew Mason reacted to haruspex's post in the thread If Heat Is Motion, Why Isn’t All Motion Heat? with
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Is that the exact wording of the question? I ask because in scientific usage "heat" only refers to the transfer of energy between...
