Which Way Will the Water Go?

Have you seen Which Way Will the Water Go? (ft. Steve Mould)- Smarter Every Day 226 - YouTube ?

It's an interesting physics experiment to explain the concept of galilean relativity in an unconventional way.

Necessary

• plastic glue (attack is ok)
• tube connector
• 6mm hole pipe (I used a broken antenna). A soft metal is recommended!

How to:

1. you have to bend the tube in a J shape (see pictures), this is quite critical. Pay attenction not to brake it. A soft metal is recommended!
2. print separate pieces (optimized for NO support)
3. screw a water tube connector on BF
4. glue BF on BB (BF walls facing BB)
5. lay TB on BB (TB walls facing up)
6. glue BT on BB from the hole (BT walls facing down), make sure that TB is able to rotate
7. glue TT on TB, make sure that TB is able to rotate
8. press fit the J tube in the holes (in my case glue was not needed)