# Ideas for this fun project?

by matt2matt
Tags: ideas, project
 P: 3 Here's the project: You have a 60x60x60cm box, and a marble (the material of the marble could be steel, glass, plastic, etc.). There are 2 holes in the side(s) of the box that are 20cm vertically apart. The marble must start from the lower hole with basically no velocity, and by any non-electrical means shoot out of the upper hole. How would you do it? What kind of simple machines / devices would you use to propel the marble? I am doing this myself, but I am really interested in seeing what some people will come up with!
 Thanks P: 5,869 If the marble has enough velocity initially, it can simply be deflected to the top hole. If it does not, well, there must be some source of energy in the box to accelerate it.
 P: 21 Wow, that sounds interesting! Is this for a class? Anyway, how are the holes oriented? Is the second hole directly above the first, or is it above the first on the other side of the box. Also, do all mechanisms have to be contained within the box? Like voko said, its really just a matter of getting the ball to move, upon which you can add a ramp of sorts that leads to the second hole. So you could have a lever/hammer thing that knocks it forward. But that's boring. Currently I'm imagining some sort of rube Goldberg machine right now, so I don't know if you care to hear it. Guess that depends on the purpose of the project - to do it as simply as possible or just to create something cool. Anyway, more info would help.
P: 3
Ideas for this fun project?

 Quote by rkum99 Anyway, how are the holes oriented? Is the second hole directly above the first, or is it above the first on the other side of the box. Also, do all mechanisms have to be contained within the box? Like voko said, its really just a matter of getting the ball to move, upon which you can add a ramp of sorts that leads to the second hole. So you could have a lever/hammer thing that knocks it forward.
the red are the holes.
 Quote by rkum99 But that's boring. Currently I'm imagining some sort of rube Goldberg machine right now, so I don't know if you care to hear it. Guess that depends on the purpose of the project - to do it as simply as possible or just to create something cool. Anyway, more info would help.
The project requires the use of at least 2 simple machines, and 3 transformations of energy (springs, inclined planes, launchers, etc). A rube Goldberg machine is exactly what we want! The best thing to do is creatively fashion together things or use old parts from toys to move the marble.