that is the special way of strandbeests walking.e of the length of the tubes which i use, and i used a computer programme. all right, so you have been using the algorithm for close to 30 years. but how do they really move across the sand? well, they are pushed by the wind and sometimes they can store the wind. can you hold this? yes, i can hold this. you can make sort of pumps with these tubes so there is a ring at the end here. and it fits into another tube, and you have a pump. these pumps are connected with the wind, which go up and down with the wind, which go up and down with the wind, which go up and down with the wind, and the pump air into pet bottles on the back. and that gives spare energy the animals need, if the windfalls away. there is a bit of energy in their stomach, as i call it. and they can walk on stored wind, you could say. apart from these sandy beaches, can they walk on concrete? they were very well in concrete. because in these particular exhibitions, guests and viewers of the exhibition will be able to walk w