Parabolic Reflectors made of concrete

Play value

Sound, like light and heat, can be made to focus. What is spoken at normal volume into the focal point of the reflector can be picked up in a second reflector placed opposite about 30 to 40 m away, as well as at all points between the two reflectors. Sound waves, like light and heat waves, can be concentrated onto one particular spot. The Parabolic Reflector provides experience of physical phenomena.

Recommended for

• schoolchildren
• young people
• adults
• public areas without supervision, such as playgrounds, parks or similar