Twirly Bird LEGO robotics

Famous!

So Famous!

We have featured in the LEGO education UK wordpress website
on an article entitled "Taking the first step in robotics"

Check it out here:

http://legoeducationuk.wordpress.com/2012/12/13/taking-the-first-steps-in-robotics/

LEGO robotics: Idler gear

We used our toy cogs to see which way each cog would turn if we twisted only one cog.
If we have two cogs they spin in opposite directions, but if we have 3 cogs, the two outside cogs spin in the same direction while the middle one spins in the opposite direction.  The same happens with our lego cogs.