i can only use 50 toothpicks and white glue it has to hold a textbook for 30 secs what do i do 4 it to work?

Answer 1

50 toothpicks will let you build 9 bridged tetrahedrons, which should do the trick. I cannot draw a decent diagram here.

To make one tetrahedron, it takes 6 toothpicks. Arrange three toothpicks in a triangle in a table. Put a blob of white glue at the corners of the triangle where two toothpicks meet. Now place one more toothpick in each glue blob, standing up but leaning in toward each other so the 3 standing toothpicks meet at the top., where they also get glued. It makes sort of a tent frame. If built properly, it has 4 triangular sides, and all the angles between touching toothpicks are 60 degrees. They are also fairly rigid, considering their weight.

Just for practice, build 6 of these, and arrange the 6 so their bases fit together to form a hexagon. You are using 36 toothpicks, but note that there are six edges that have two toothicks next to each other. You can build the final version with only 1 toothpick in those places. If the tetrahedrons are symmetric, you should be able to glue adjacent
"tent tops" together with a toothpick, 6 more toothpicks. Building in this fashion builds upside down tetrahedrons among your right side up ones. This is stiffer than a cubic lattice, which takes 12 toothpicks to make a basic cube.

if you don't use two toothpicks along any edge, you can build a total of 9 linked tetrahedrons, the six on a hexagon and 3 wings to make the base a large triangle. Another way to describe it is two triangular grids cross linked by toothpicks at 60 degree angles. You might need to build a frame or something to hold the toothpicks in the right positions while the glue is drying.

Good luck, let us know how it comes out.

Answer 2

create a 4 inch by 4 inch square placing each toothpick 3/8 inch apart standing upright. This will take up 32 toothpicks. Then, take the remaining toothpicks and glue them on the top and bottom of the ones standing upright. That should take about 16 toothpicks. Use the remaining two toothpicks for cleaning your teeth. ha ha. be sure to use enough glue in the joints. It may take you a while and you need a lot of patience, but if you build it correctly it should hold the book for over an hour

Answer 3

get a piece of plexi glass and glue your tooth pics together. How big of a book is this? Make supporting posts out of 6 toothpicks glued together like ::: make a sheet of toothpicks glueing them together like ==== one on top of the other the thickness of the book across Then glue the flat piece to the posts you made. Make sure you space the posts out under the sheet, to hold the weight of the book. =o) Good Luck! Post back how you do!

Answer 4

Why not sit the glue & toothpicks on top of book & pick up book?
You are now holding textbook.
Otherwise you would have to hve size of book to best configure
where to place reinforced squares to hold book.

Answer 5

you need to build three dimensional triangles, like the kind you see on the bottom of a steel bridge. Turn them when building so that you create an even layer of these triangles in the shape of a square. This structure will support the textbook without problem.

Answer 6

Break them in half and place them equal distances apart-the weight of the book will be distributed more evenly. Of course, an arch is the strongest form, but you could have fun with it and try several different ones. Go ahead-create, explore, innovate.

Answer 7

use 6 toothpicks to make a pyramid and make 8 pyramids

Answer 8

Are you allowed to glue the toothpicks flat?

Answer 9

You will have to build a truss or similar structure.

http://www.makezine.com/blog/archive/2006/07/toothpick_engineering.html

Look at the pictures here for some ideas.

Answer 10

Build triangles. Lots of triangles. As many as you can.