The Internet, even Wikipedia, is full of information on levitation and antigravity. If someone is not educated, he would do better to educate himself first, and contribute later. For example Maglev train is a practical example of levitation. The train has mass, but it does not have weight, and if a scale is put beneath, it does not register gravity from the train or its passengers.

There is no witchcraft going on (at least no attempted witchcraft ) It just seems that the modern man is as hesitant to make scientific experiments as the man of the middle ages, and also as willing to ridicule the ones who do make them.