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 DDSearle
Joined: 5/20/2017
Msg: 1
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The Physics Of TramplingPage 1 of 1    
Recently I had to trample-down several cardboard boxes
And it was hard work. Whereas I was expecting that the energy-expenditure would be solely that of lifting my body a little before letting it sink under the force of gravity, I became tired enough to fancy that there was more to it than that. My ankles came to ache, pulse-rate was raised and some sweat broke on my brow. It was as though I was generating extra energy to deform the boxes. Anyway, it somehow felt as though all was ought of balance. Has anyone else experienced this? And can anyone here explain it?
 gingerosity
Joined: 12/10/2011
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The Physics Of Trampling
Posted: 6/22/2018 12:57:16 AM
It's like climbing steps. You have to lift your centre of mass up and then lower it onto the boxes, repeatedly. Go up a few flights of stairs at a similar pace/intensity and see how you feel at the top. In the old days there even used to be aerobics classes based on stepping up and down.
 DDSearle
Joined: 5/20/2017
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The Physics Of Trampling
Posted: 6/22/2018 5:35:03 AM
^ But I'm used to using stairs: and, will take to them rather than a lift or elevator
However, something extra to that sort of effort seems to be involved in crushing boxes this way

^^ Though I am getting old, I'm proud that I have none but my own teeth; do not have to take any regular pharmaceutical preparation; and, when given the opportunity, needn't take Viagra etc. My eyesight is better-than-average too. Now, would you like to tell us how fit you are. And I do mean you – the one that has retreated to the easy option of cosmology or theoretical 'physics'

^^^ For 'ought', read 'out' (of balance)
The Physics Of Trampling
Posted: 6/22/2018 6:02:34 PM
Oh for pete's sake...ok, look - Just letting gravity pull you down to squish boxes won't be enough. Why? Because the boxes do have some structural strength in them. At various points of a given box that is being squashed, it will have a 'crinkle' of some kind...a crinkle which will have it's own agenda as to which way it wants to fold and smash, or to not fold or smash in the first place, and you will have to exert enough work to overcome this tendency intrinsic to it's material and design properties; It will not simply bend to your will like water if you rely only on your weight and gravity.

F-ckity f-ck. What questions one thinks of.
 DDSearle
Joined: 5/20/2017
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The Physics Of Trampling
Posted: 6/23/2018 12:27:43 PM
It may be sour grapes for 'science' folks,
But trampling-out the vintage in a vat etc is easy in relation to trampling-down a pile of cardboard boxes
I fancy that a fabulous force is afoot
 LovingLoner2
Joined: 4/6/2018
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No really, please go to school. It's not too late.
Posted: 8/21/2018 9:27:50 PM
Shaking my head
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