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Can you give me some examples of recreational physics?


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closed as not a real question by Mark Eichenlaub, dmckee, Luboš Motl, Sklivvz, David Z Apr 8 '11 at 17:55

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Ever heard od "Google"? We shall save You the work of keying in "recreational physics" ? – Georg Apr 8 '11 at 16:51
Can you make this question more specific, please? At the moment, I think it's too broad to generate good answers. Some outlines for asking questions are available in the FAQ: – Mark Eichenlaub Apr 8 '11 at 16:52
You mean like juggling? – nibot Apr 8 '11 at 17:19
Zurab Kakushadze used to call large extra dimension model building "recreational phenomenology", because it was so easy to get whatever you wanted. – Ron Maimon Aug 19 '11 at 18:29

There is nothing such as "recreational physics". The term "recreational mathematics" is a standard umbrella term for mathematical puzzles and mathematical games. The term "recreational physics" may only be used by individuals who want to say that they find physics - whether theory or experiments - amusing. But they realize that no one will exactly know what they mean because "recreational physics" is not a standard term in the dictionary.

For example, this blog

was named "Recreational physics" because its author thought that it is an amusing title that combines physics and attractiveness. But the title doesn't mean anything specific and you won't find anything special on the blog that you wouldn't find on other physics blogs.

For physics to be "recreational" in the same way as recreational mathematics, there would have to be some "game" about them - a large number of possibilities that may always train our brains. But when it is so, it is mathematics. Physics, pretty much by definition, is all about "fully solving" problems. So if one has an amusing physics experiment, it may be viewed as "amusing physics", but if one does it - or understands it - once, there is really no point in doing the same thing again.

That makes a difference. For example, people may solve Sudoku thousands of times because it's always a bit different and they have always some "new fun". But if someone finds out that water may be frozen to ice e.g. in this way

it's not terribly recreational to repeat the same procedure one thousand times because it's always the same hard work. ;-) The part of "physics puzzles" that may get modified deserves to be classified as "maths".

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