Astrocat

I Remember, years ago, learning at School, I was taught That when a system Expands, or Loses Pressure, it does so Evenly. Now, is this a law in Science, or...

Well thank you, MrK - okay if I call you that? I guess I forgot to say that we're talking 4D here, so that means there is Time involved and...

Is there any evidence to show that Pushing something, warms it? Surely, if you Push something, and keep pushing, isn't there going to be some Compression, and some Compaction as...

Can anyone tell me the Inversion Temperature of Hydrogen. I believer it is Low. The Inversion Temperature - Isn't that the temperature below which Expansion causes Cooling? Does this mean...