1. Home
  2. ⏣ General Metalworking
  3. [PICTURES] Does this wooden structure violate laws of physics?
  4. Page 2

[PICTURES] Does this wooden structure violate laws of physics?

It's carried on the 2 outer legs of the upper stage. The left one stands on the one below (slightly off centre indeed, but still OK). The horizontal piece under the right leg is a 1st-order lever, with a fulcrum at the centre of the column beneath, ie where the bevelled end meets the main part. The load bears on the short end of that lever, so a reduced form of that load bears at the other end (centre of the structure), where it presses upward, but is restrained by the central column. This upward force is small (reduced by the leverage), but holds the centre of the upper stage in place.

Reply to
David R Brooks
Loading thread data ...

For it to fall, the center ends of the horizontal orange blocks have to go down. Since the outboard ends are resting on vertical blocks, they would have to go up when the center ends go down. The outboard ends can't go up because the weight of the upper blocks is too great.

Reply to
dadiOH

On the subject of demoltion there is an office block in London where they are currently demolishing it from the bottom first.

formatting link
formatting link

Reply to
Mike

Ignoramus19259 wrote in news:WamdnU7aJMsZiE_bnZ2dnUVZ snipped-for-privacy@giganews.com:

No, it doesn't. Good job engineering by the 6 year old... The weight is mainly transfered to the outside, so the center support isn't holding much weight. He's got two* times the weight on the outer supports as the inner, so it stands.

*This may not be 2.0000 times, it's just roughly 2:1.

Puckdropper

Reply to
Puckdropper

Sufficient weight in the side stacks allows the cross-beams to act as cantilvered beams.

Reply to
Andy Dingley

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.