The Aliens could have come from our dimension in space, but not from our time. The UFOs, as time machines, can fly so fast that conventional means of propulsion will never be able to replicate the speed of it. The effect of the time isolating field could be the disappearing, shape/color changing and the releasing of enormous amounts of energy by the UFOs. The field can also have paralizing effect on animals, humans, engines, mechanic systems and electric systems.
Speed is measured by units of distance relative to the time it takes to get to the end of the track. If we could raise the speed of time in our spaceship, our speed would look faster than it realy is to someone watching us fly from far away.
If we could double the speed of time in the craft, our speed will double, and if we slow the speed of time, our speed would slow also. If we stop the time in the spaceship, the universe would move around us in amazing speeds.
Every day the earth does one full spin around around it's axis, that means that the ground we stand on moves in a speed of over 1,000 KMH relative to the north and south polars.
Once a year the Earth circles the sun which is 150,000,000 KM from us. that means that the earth moves at a speed of 33,000 KMH around the sun.
Our area in the galaxy moves around the galaxy center at a speed of 500,000 KMH.
Our galaxy moves away from all the other galaxys at a speed of 220,000,000 KMH.
With a time machine, you could fly even more then all those. We could multiply the time speed by 1,000,000 only in the capsule itself, and move at enormous speeds, and thats only the top of the ice-berg. With such an invention, we could fly a spaceship with no fuel or propulsion unit. The air particles will compress into the time isolating field, and their kinetic energy would create heat radiation. There could even be unization of the air around the ship. This will cause an aura in the front of the ship.
To an outside watcher, the field around the ship will look ball shaped, an ovoid, oblique or torpedo shaped. The field won't look to compressed or simetric and will look more like fog.
The body of the ship doesn't have to be warm resistent, because the field surrounding it will slow the flight of the air molecules, or the field will totaly isolate contact between the ship and the molecules.
