Physics Review: Thermodynamics #51 Entropy

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We will review the concept of Entropy. Entropy is a measure of disorder, or the availability of heat to do work. Either the situation become more disorderly, or there is less available heat to do work.
Previous video in this series on KZbin can be seen at: • Physics Review: Thermo...
Title search on other plateforms: Physics Review: Thermodynamics #50 Second Law of Thermodynamics
Next video in this series on KZbin can be seen at: • Physics Review: Thermo...
Title search on other plateforms: Physics Review: Thermodynamics #52 Entropy

[@jakubkusmierczak695]

it is just amazing 👏Mr. Professor You are out of this world - the water bucket will never be the same, since it is filled not only with water but also entropy (You have changed my world view). PS Lord Kelvin will appreciate this lecture and Ludwig Boltzmann 😄

[@MichelvanBiezen]

Glad you enjoyed it,.

[@Znxjsjnsdn]

If we used the sidereal year for our calendars then summer would have 15 hours of darkness. Correct? Nasa says tropical doesn’t account for precession of the equinoxes. That got me a little confused. I thought the tropical accounted for precession

[@Znxjsjnsdn]

Professor how long would the tropical year be if the earth wasn’t precessing? Would the year be 20 minutes longer and tropical and sidereal years would be the same?

[@Znxjsjnsdn]

Professor if I’m not good at math should I do astronomy in college? I know a lot of astronomy already.

[@MichelvanBiezen]

Most intoductory courses in astronomy do not require higher level math.

[@Znxjsjnsdn]

Professor is precession of equinoxes caused by axial precession?

[@MichelvanBiezen]

Not sure what you mean by "precession of equinoxes). Precession is the motion seen by objects that are rotating, like a spinning top.

[@Znxjsjnsdn]

@@MichelvanBiezen nasa said that.

[@Znxjsjnsdn]

@@MichelvanBiezen the equinoxes move as the North Pole moves

[@naxsis_1Ki1game]

Hello Mr. Michel V. B. i try to get your mail adress but can't get it in here and in the web site. There is some problems with the videos in the channel ( 31 units ) ( problems are not happen while watching or topic or the way to give the content ) mostly Technical actually but to solve this problem that i face, i need your mail adress to cantact with you also i wanna say thank you to do all the content also if you accept i like to give you a gift. Hope we can talk soon.