**Author details**

Kazuo Matsuuchi University of Tsukuba, Japan

\*Address all correspondence to: hinoya1yu@yahoo.co.jp

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Introductory Chapter: Propulsion and Movement DOI: http://dx.doi.org/10.5772/intechopen.101071*
