5 year old Mila experiments with silly putty
Mila is 5 and she is playing with silly putty. It's another non-newtonian fluid, like the corn flour water mix that we saw yesterday and has what we call dilatent behaviour meaning that the
material becomes thicker or more like a solid as the rate of force on it is increased. If you throw a ball of silly putty on the floor it will bounce, however if you hold it in the air like Mila is, it will flow like a fluid. Silly putty is both elastic and viscous depending on what you do to it. In this experiment, Mila is watching a blob of putty flow to the floor as gravity pulls it down.
Non-newtonian fluids really are strange!