Action = Reaction
Author: Roeland Vollaard, physiotherapist and initiator of "Class on Wheels" in Alkmaar, The Netherlands. I’m standing on a wall and I jump off. Just like that guy in the picture. Thanks to gravity, I speed up downwards. It then quickly becomes
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Why Sam likes bumpy rides
Roeland Vollaard, physiotherapist and initiator of "Class on Wheels" in Alkmaar, The Netherlands, about his walks with Sam.
The ABR way of thinking
Roeland Vollaard, physiotherapist and initiator of "Class on Wheels" in Alkmaar, The Netherlands, explains the ABR way of thinking.