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"The Power of Arches" Shape and Structure PPT Courseware 2
Make a paper arch and see how much weight it can bear
Comparison of load-bearing capacity of flat paper and paper arch
Notice:
1` The thickness of the book against the arched feet is the same, and the distance between the two arched feet is 10 cm, which remains unchanged
2`The gasket must be handled with care and can be adjusted appropriately by hand.
3. Judgment criteria for flat paper and paper arches that cannot withstand the load: Place washers to make the paper stick to the horizontal table.
4`Record the number of washers
5`Paper arches with obvious creases cannot be used anymore.
The secret of arch load-bearing:
When the arch carries heavy objects, it can transmit the pressure downward and outward to the adjacent parts. The parts of the arch squeeze each other and are more closely combined.
What we found:
The greater the number of arches, the more iron washers they can bear.
Our explanation:
The pressure on the arch will produce an outward pushing force. With this force, the arch can carry a lot of weight.
Explain why the watermelon skin arch is not carried on the shoulder?
Because the watermelon skin arch transmits the force downward and outward to the adjacent parts, the various parts of the arch are squeezed against each other and combined more closely. Therefore, the watermelon peel arch cannot be carried on the shoulder.
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