Mar. 04, 2012 11:00 PM
My 9yo son is doing a science project on the friction of different Beyblade tips/bottoms. We need to control for all other variables, including launch speed.
Does an Automatic Launcher/Ripper exist that launches blades at the exact same velocity every time?
We greatly appreciate any guidance.
TIA,
Ski and son
Does an Automatic Launcher/Ripper exist that launches blades at the exact same velocity every time?
We greatly appreciate any guidance.
TIA,
Ski and son