Can someone gave me strongest design with lightest weight and hold alot of weight and have highest effiency.?

Question

Lightest weight
hold alot of weight
high effiency
width must be 5 cm

I forgot to tell the it must made from wood.

i want to build a bridge made from wood.
It's a small bridge

Answer 1

Your answer is a tetrahedron.

I saw these designs at the Alexander Graham Bell museum in Nova Scotia, Canada. I can attest to their strength. Basically it's a triangle built on a triangle. Triangles are the strongest structure because of their weight distribution properties.

"A tetrahedron is a four-sided solid, triangular pyramid. The two large tetrahedral shapes at the ends are attached together with a framework of smaller, hollow tetrahedrons.

When you ask most people what Alexander Graham Bell was most famous for they will probably be able to tell you that he was the inventor of the telephone. Some people may even know that it was invented in 1876 and that he later invented the gramophone.

Very few people realise that Bell had a great passion for both aeronautics and kites. He used kites to further his knowledge of man assisted flight. Bell designed, made and tested many of his own man-carrying kites himself.

Bell found the tetrahedron to have a very good strength to weight ratio. This simply means that an object is structurally very strong but at the same time is very lightweight.

Metal girders and beams in most modern buildings are made of hollow steel beams. Centuries ago beams in houses were made of solid wooden beams. They were much heavier than the metal beams and were not as strong.

Bell continued to experiment with the tetrahedron. He built a kite called the Frost King, which was made up of 1,300 tetrahedron cells. The kite accidentally lifted one of its handlers some 30 feet above the ground.

The kite, including all of its tackle weighed just 125 lbs; the weight of the handler was 165 lbs. 10 miles per hour wind was recorded. The pull of the kites was measured using a standard spring scale. These can be found in most school science laboratories.

From this Bell concluded that a much larger kite, carrying an engine, providing a 10 m.p.h. thrust would easily carry a man."

I would say that is pretty effective!

Answer 2

You haven't given us much to go on, so I'll just point out a couple of basic principles:

1) Use triangles for rigidity. Look at roof trusses, truss bridges, geodesic domes, Eiffel Tower.

2) For maximum stiffness and light weight, concentrate your material on the top and bottom surfaces. Consider I-beams and foam core materials as examples.

Answer 3

It depends what you are doing with it. For just supporting weight, try an aluminum tube. Think of an empty pop can that you can stand on if careful. Very lightweight compared to the weight it is supporting.

Answer 4

lattice, like a railroad bridge

Answer 5

Do your own damn homework.

Answer 6

what do you want to make sir ?