Marble Adding Machine

That is really very cool.

its like so boring? why do you all love this so much?? and why would you invent it anyway it has no use

hey you stupid!
it's just the binary system.... what's wrong with you?

128

It's clever, shows you love math and science. BUT I'm compelled to say:
GEEEEEEEEEK!

Nice machine indeed! Rather!

dude... that is just F**king amazing!!!!

ingenious

ddue you have absolutely no life =_='

amazin

AWSOME!

ITV, I teach my girlfriend what the hell binary is and how to add it.

Dude, I might do something like this someday, A) as a binary teaching method and B) kuz it's cool.

ok cool

what's 64 plus 64?

Such a thing would be quite easy to replicate in electronics using flip-flops.

Wow! I like it!

the whole thing is great!try adding more numbers.5/5!!

Wow! This is awesome! I like how you made it so that the marbles could be dropped to the bottom to give a solution and also how you made the carry mechanism work. 5/5 from me! :D

cool.

This machine may not have a real practical use, but it's a very useful learning tool. Good job, and keep up the creativity!

Sir, can I leave the room? My head's full.

very interesting... makes binary easy to understand a bit for me

Do you even know what binary is?Oo

It's a neat idea, but I've had an easier version of this for 6 years. Did you invent it? It's called a color connection maze and it's a toy for kids.

i want one!

an adding machine that takes adding to use...ironic no?