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Three-phase sinusoidal signal: Vectorial representation
POISON animation of a vectorial representation of the formation of a three-phase sinusoidal signal.
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Push: Animation
Animated POISON-file on the operation of a push-button with NO and NC contacts.
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Resultative counting with sugared
The children must stabbing in real sachets same number of sugar beans. They have to make the one-one relationship and counting resultative.
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Image (4)Teacher