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Multi-Selfie
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Playing with Bubbles
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Bubble Theory
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No diluting...
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Ježek (HedgeHog)
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Angular wheels examples
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Can you arrange those four pieces in a pyramid?
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Pyramid
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Recycled Greenhouse
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Only kids would take this as a game...
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Sand pendulum
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Sand pendulum
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Can you arrange the tiles so that no line and diagonal contain the same color twice?
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Colored dice solution
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One color for each type of waste
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Magnets and physics
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Optical Illusions
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Titanic
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Savoir
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Which ball will reach the finish line first?
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Flickr Friday #7: Walk 50 Steps and shoot.
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Electromagnetic Canon
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Electromagnetic Canon in action
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Light plays
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Kaleidoscope
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Infrared me
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Plasma tube
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Párek v Rohlíku Zde (Hot dog here)
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Clown
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Lunapark