To illustrate a little more of this strange emptiness we can look how liquid Helium (very cold) behaves in a container when the temperature is approaching absolute zero. At this temperature it appears that all movement of particles will stop. We have never observed this temperature and will not be doing it any time soon either...
We all played with small magnets as children. We did not get all what they can do at the time nor are we sutill doing everything they can be used. Here is a new way of doing it.
How about a flying Dutchman?
How aabout a ship that seemingly floats in the air. It does not really do that but when a heavy invisible gas is used a small "ship" can literally float in the air..
Thermite has a surprising ability to melt even solid iron
Demonstration of the Navy Electromagnetic Rail Gun prototype