Do you ever have dreams of the future? You know the ones with hoverboards, floating objects and flying cars? Well, the Gravity-Defying Levitation Demonstrator is how a majority of that will work! When facing like poles of a magnet together they will push apart, with enough given energy as well will allow one side to levitate in the air due to the magnetic currents pushing and pulling between the two. Levitation is easy to achieve with small objects. Many are still working on producing the futuristic hoverboard. For this to work we would need magnets placed under ground, well, everywhere. This is what makes it almost impossible. With our Gravity-Defying Levitation Demonstrator you can easily see what must occur to produce levitation. It’s quite phenomenal and amazing. With a simple twist of the fingers the axle and spins horizontally in a state of near perpetual motion for up to 20 minutes. Black and white reflecting strips on axle allow students to observe the patterns created by the alternating colors and to measure rotation speed using a stroboscope (not included). Measures 2-1/2" x 5" x 3". This item is one of the best demonstrations to show magnetic levitation. This can be shown to all at home, in the classroom, at work, anywhere you’re able to place this item. For all those learning, this is a wonderful and thoughtful experience surely to make you think of what is, what was, and what will come.