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May 11, 2019 at 17:41 history edited Brythan CC BY-SA 4.0
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Nov 17, 2017 at 20:05 comment added Vashu Demonstrating vacuum is easy too - put steam in some vessel, close it, watch it break. But the leap it takes to think about it in abstract terms of force and pressure, to think about air as another form of matter is a little hard to get after you get it. The main problem is that you need several ideas to meet to produce the invention, but those ideas are pretty much useless on its own.
Nov 17, 2017 at 19:58 comment added Vashu It is easy to demonstrate latent heat - boil water and measure time it takes to boil and time it takes to boil out. This was known long ago, and anybody who knows his way around kitchen knows it intuitively - but he knows it just as empiric rule that it take water so much to boil, so much to boil out, not some abstract knowledge that is easily transferable to thinking about steam engine. To understand it in physics terms and to think about heat as some entity that can be spent by spending fuel is surprisingly hard.
Nov 17, 2017 at 16:42 comment added Slarty Very good answer. As a related aside I wonder if there is any natural event (or any man made event that could be contrived happen by accident) that would clearly demonstrate either latent heat or the power of a vacuum?
Nov 17, 2017 at 0:43 history edited Vashu CC BY-SA 3.0
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Nov 17, 2017 at 0:25 history edited Vashu CC BY-SA 3.0
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Nov 17, 2017 at 0:19 history answered Vashu CC BY-SA 3.0