Simple and Beautiful Experiments XII by LADYCATS and the Science Teachers Group: In memory of Hiroshi Kawakatsu

The LADYCATS (LADY Creators of Activities for Teaching Science) were founded in 2005 in cooperation with Professor Hiroshi Kawakatsu (1945–2018) to encourage both female physics teachers and students who want to study physics more, and primary school teachers who feel unprepared to teach physics-based lessons. We have demonstrated ‘simple and beautiful experiments’ together for the past 14 years. Our concepts are as follows: the ‘simple’ experiments are easy to complete, while the ‘beautiful’ ones are interesting, and the ‘essential’ experiments demonstrate the principles of physics. We lost our leader, Professor Hiroshi Kawakatsu, in 2018. He always said, ‘Everyone has a right to learn’. We follow in Professor Kawakatsu’s footsteps and demonstrate several educational experiments that he liked and demonstrated.