Video: Merry Christmas
2023 Author : Hannah Pearcy | [email protected] . Last modified: 2023-05-24 11:12
Christmas joys are
also available to mechanics down here, or whether
someone may still learn on Christmas Day ?
Our hero, an engineer, thinks it's not that difficult.
A tree and lights would be enough, and the crib a little simpler.
Our hero quickly jumps on his horse, packs up what does not defend himself, saw, ropes, beams, stick, which resulted in mechanics.
Then they ride into the forest
and cut out a little tree.
And that's what we call after the ride -
exactly: the knight's cut.
After the cut, it is imperative to apply
all the strength, and the engineer, great, has pockets of it too.
But a stiff wind blows, and the tree even falls quickly, because the tree was - realized grimly -
kinematically indefinite.
Our hero, now a little spicy, was just fixated on strength.
Had, and that was presumptuous, forgotten the moments.
The question arises where the tree is already, how it gets it home.
And then notices very elegantly, friction? I do not know.
Defines his tree, so, yes you hardly believe it, as a frictionless' problem.
Then pull him there very easily.
And when you get home, you
quickly lose your strength: It
turns out to be the opposite, what is called the free cut.
Is it tacked now, glued?
Imprisoned or interwoven?
Is it screwed or riveted? -
Wonders who offers what else:
Free to cut is not difficult, but the opposite is very likely.
Our hero knows
that a tree is being clamped, this time try to hurry
to distribute moments.
Then candles on the tree, balanced, beautiful to look at, have to pay attention to lever arms
and not overload the tree.
For the crib, because it pleases, a framework is made.
Which, if you take it correctly, is
completely statically indefinite.
But that doesn't bother us all the time
and is therefore not necessary.
Another mulled wine with something in it, and then that's enough.
A happy festival to all of
you, that you can have
a good time, and a happy new year, that's almost there now.
In the end 'the string of lights, because you would like it too:
it hangs in the shape, in the end:
Cosínus hyperbolicus!
* Institute for Mechanics, TU Berlin