The paper utilises the method of hermeneutic interpretation to examine the sense and meaning of Jaroslav Foglar's first and most famous long-term stage game and its motto 'Alvarez needs only the brave and the strong!'. The historical impact (nearly 80 years since the game was introduced) and the motivational, programmatic and ethical elements of…

This paper describes ten simple thermal imaging experiments designed primarily for upper secondary students, but usable with younger pupils as well. The author's primary motivation was to come up with a meaningful use for a thermal imaging camera even if the teacher only has a short time to work with it--in the extreme case, only one lesson in…