Forces in a spin are demonstrated dramatically on Rotation Station. Step onto the spinning platform to give it a try. Push yourself off with one foot, then move your whole body in and out to control your speed. By sticking your bum right out, you slow down your spinning. Pull yourself up straight and you speed up - so you’d better hold on tight!
Ice skaters do the same to speed up their spins - amazingly some ice skaters can spin at a speed of over 400 turns a minute!