Scratch

Yours is pretty cool. I never tried to make one myself.

kayybee wrote:

It was an assignment for everyone to design one in my class in third grade.

We had to use certain items.

Mine pushed a napkin into one's lap.

Sounds like a fun assignment! 

Yeah, they are cool.

Harakou wrote:

Watch and be amazed: http://www.youtuberepeat.com/watch?v=G_qUjrMtMec

That is a cool one. 

Does playing a game of mouse trap count?

helltank wrote:

I once created a Rube Goldberg machine that would drop a pail of water on someone.

However, something jammed and the pail of water, plus the metal beams that hold it up, all fell on the person.

He escaped luckily.

Sounds dangerous.    We had to run ours a ton of times before it finally worked all the way through...

agscratcher wrote:

KILL THE CREEPER!

The suspense is killing me!

Harakou wrote:

johndo77 wrote:

Harakou wrote:

Watch and be amazed: http://www.youtuberepeat.com/watch?v=G_qUjrMtMec

That looks utterly fake.

1. tire don't go up hills.
2. Just look at the speakers.
3. Why would they do the whole thing INSIDE?

Well apparently it's real, but seriously.

Nope, it's 100% real. I'm not exactly sure how they got the tires to roll uphill, but it's something to do with them being hollow.

More like them being hollow and inserting a weight inside.

It's possible to make hollow wheels roll uphill by inserting a weight inside and positioning the wheel in a certain position. I've seen it done with empty tin can with weights taped on the inside of them. [Try it out one day, it's pretty cool!]. 

wiimaster wrote:

What about This Too Shall Pass by OK Go? http://www.youtuberepeat.com/watch/?v=qybUFnY7Y8w
Love that one!

I love the chain reaction if not so much the song. (Which I don't really pay attention to)

P.S. OK Go has a 3D video on 3DS. [/evenmoreof3ds]

Last edited by soupoftomato (2011-03-26 22:34:18)

cheddargirl wrote:

Harakou wrote:

johndo77 wrote:

That looks utterly fake.

1. tire don't go up hills.
2. Just look at the speakers.
3. Why would they do the whole thing INSIDE?

Well apparently it's real, but seriously.

Nope, it's 100% real. I'm not exactly sure how they got the tires to roll uphill, but it's something to do with them being hollow.

More like them being hollow and inserting a weight inside.

It's possible to make hollow wheels roll uphill by inserting a weight inside and positioning the wheel in a certain position. I've seen it done with empty tin can with weights taped on the inside of them. [Try it out one day, it's pretty cool!]. 

Oh, I think I get it. Cool!

at school we made them kinda so yeah

my team's always fell apart though

slapperbob wrote:

what is a Rube Goldberg Machine in the first place?

A Rube Goldberg machine is a chain reaction that performs something simple in a complicated way. Here is the one we made. The purpose was to get a ping-pong ball in a cup, which is really simple, but we made into a bunch of steps:
1) Car rolls down track
2) Car falls in cup, causing it to fall.
3) String attached to cup knocks over a domino.
4) Chain reaction of dominoes.
5) Last domino knocks over block.
6) Pendulum is released by block and swings.
7) End of pendulum (another block) hits a standing CD case.
8) Chain reaction of falling CD cases.
9) Last CD case hits a yoyo.
10) Yoyo rolls down track.
11) Vibrations of track cause a cup  on a pivot to fall over.
12) Ping-pong ball from cup rolls down track.
13) Ball bounces of a block on the floor.
14) Ball bounces of panel.
15) Ball falls in the cup.

See? This could have been accomplished in only one step (place ping-pong ball in cup), but we made it much more complicated.

Last edited by scmb1 (2011-03-27 17:57:12)