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Spinnor reacted to Roberto Pavani's post in the thread High School Tennis Balls in the Ocean with
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An equivalent way to see it: the sea level rise is the same as the water rise you'd observe when placing one tennis ball in a... -
Spinnor replied to the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation.Thinking about the data is what feels important to me. Lag is small at first because the separation changes slowly at first. Daily lag... -
Spinnor replied to the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation.Let the period be 2 days and take measurements for half a year. In that time Jupiter moved roughly 1/24 an orbit so in the half year we... -
Spinnor replied to the thread Undergrad Textbook description of R##\ddot{\text o}##mer's light speed calculation.Maybe it would be helpful to produce an imaginary data set. Let Io make one complete orbit in a nice round number, say 1 day or one week... -
Spinnor reacted to nicksauce's post in the thread Graduate How energy divided up in early Universe. with
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There's also a factor of 7/8 that comes into play: Ignoring internal states, the energy density of a relativistic species of fermions... -
Spinnor reacted to Chalnoth's post in the thread Graduate How energy divided up in early Universe. with
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Well, what happens in that sort of situation is that the entire system is thermalized: when you have temperatures far above the rest... -
Spinnor reacted to DaveC426913's post in the thread Insights Thinking Outside The Box Versus Knowing What’s In The Box with
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6000+ exoplanets detected (1988+) Discovery of the Higgs Boson (2012) Accelerating Expansion of the Universe (1998/2011) Quantum... -
Spinnor reacted to Filip Larsen's post in the thread Artemis 2 launch - humans return to the Moon after 54 years with
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I believe they are the built-in flotation device, one part of the many subsystems in the Orion Crew Survival System suit. I am not... -
Spinnor reacted to Lnewqban's post in the thread Auto/Motor Car Maintenance: Costs, Recommendations, and Debates with
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Use the recommended maintenance schedule from the manufacturer of your car. Do yourself the most that you can, you will learn more about...