again, friction applies the necessary torque, and to increase this torque, the stem of a typical tippe top is normally grooved to increase friction between the stem and the surface, as can be seen on the picture at the top of this page.
Can you repeat this sentence, but capitalize it correctly?
Again, friction applies the necessary torque, and to increase this torque, the stem of a typical Tippe Top is normally grooved to increase friction between the stem and the surface, as can be seen on the picture at the top of this page.