Yes, memorizing and regurgitating the professor's problem and solutions is the best first approach. Every example the prof did, I did three times from memory. This worked for every technical class. I had a stack of sheets with the problem set up, one for each quiz, midterm, and final. Did...
I find it an interesting think to wonder. The single observation that come close to the arrow of time is entropy. But this, as far as I know, is simply that things tend towards spreading out evenly across space. Again, we're down to that fundamental point of measure of distance, whatever...
And there's the problem, this imagined "time arrow" which supposedly might run in some other way. At it's core, physics is simply correlating on property with another. "Time" is label we give to one of these correlations. Fundamentally, physics is a study of how things change. There are...
If you examine the measures of time in detail you will find that time is simply a measure of distance, more specifically a measure of cyclical distance. For instance, we measure time by counting the number of instances that the Sun moves around the Earth (celestial sphere).
We can skip the ice and just put them in free space. The space station or the now out of service shuttle would be excellent environments and one would think that they would have done it with two blobs of water.
Another possibility would be to put two buoyant spheres in water. Surface...