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An alphabet of capital letters that can be used with other letter packs at the beginning of words
Automatically releases fire doors when fire alarm sounds
it makes the whole instrument easier to clean and is more durable than wood due to the fact that it is less affected by climate or temperature
With 21 pieces
Reference work for secondary education
Tuning Forks, Aluminium, Set of 2 RJB1015 An alphabet of capital lettersMIDDLE C Tuning fork scientifically tuned to the absolute concert pitch middle C (256 Hertz) TWO PRONGED A two pronged plain shank fork used for tuning musical instruments, calculating frequency in scientific experiments, understanding the principles of sound waves and in chakra healing practices RESONANCE Used as an acoustic resonator Resonates at the specific constant pitch after striking against a surface Emits a pure musical tone once the high
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