Free hint ... I wont give you the answer laugh

Take away the tubes and water and with just the two pumps in the place you have them test ... look at the result .... now think why smile

Amazing hey I improved another one of your turbines !!!!!!


I saw you have played with quadcopters you must understand what is happening smile

Last edited by Orac; 04/27/14 04:37 AM.

I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.