Click green flag then click on each pin wheel to make them spin. Click 'See inside' to see the code for how the speed is controlled, and how the pinwheel spin speed slows down gracefully to zero.
Adapted from https://inventwithscratch.com/pinwheel/ Al Sweigert Buy his book Scratch Programming Playground: https://www.amazon.com/gp/product/1593277628/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=playwithpyth-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=1593277628&linkId=03f6be89a91b87b81bc6eeb6b3c73eaf
