They dont travel in wave or swells of more than 1 meter at worse They dont travel in wave or swells of more than 1 meter at worse
howercraft can move on rough surface
It permits travel on water and on land where there are no roads, but fairly flat surfaces.
That would be a hovercraft. However, hovercraft are not really boats and can travel on both land and water.
It travels best through solids
Sound certainly can travel around corners. Sound can also travel through hard surfaces like walls and bathroom surfaces as well.
A Hovercraft.
A Hovercraft
The Hovercraft it was pantented in 9th of May 2002
Hovercraft
There are fans in the hovercraft that direct air downwards. The air is 'trapped' by the flexible skirt around the edge of the craft - this creates a cushion of air strong enough to allow the craft to float.
The mantle of course.....because sound waves travel through liquid like surfaces better than solid rock.
There air propelers at the bottom that keep it floating