“distance” effect. Being away from the radioactive source
is one of the ideas how we could be safe against
radioactivity. They carried out the experiment how the
radioactivity decayed the distance as well as listened the
lecture. The other is the “shielding” effect. They
understood through the experiment that some kinds of
metals such as lead could protect radioactivity effectively.
This project was STEM education, while it was the
education for nuclear safety at early stage education
standard. From the viewpoint, the experiments were
successful for the double reasons.
Fig.14 shows the result for the question 7. The figure
shows very clearly that all of the students were positive for
the second chance of the similar experiments in
Metaverse.
Regarding question 10, all participants wrote about
their impressions, ideas, very positively, shown in Table 1.