To let the person know that the car is full of gas.
Electromagnetic wave
Because space is not empty, it has a Quantum Ether.
In empty space, an electromagnetic wave can only travel at one speed - the speed of light.In empty space, an electromagnetic wave can only travel at one speed - the speed of light.In empty space, an electromagnetic wave can only travel at one speed - the speed of light.In empty space, an electromagnetic wave can only travel at one speed - the speed of light.
A wave
what is my empty bottle of dr.ellis wave set worth?
An electromagnetic wave can travel through empty space or through matter. Examples include light, radio waves, and X-rays. These waves do not require a medium for propagation.
is a compression wave
How is light propagated as a wave through empty space?
wave
Basically, light is NOT a mechanical wave, which would require matter; it is an electromagnetic wave, which means that disturbances in the electric field and the magnetic field propagate. This requires no matter; such fields exist - and can propagate - in empty space.
Electromagnetic waves, such as light, can travel through both matter and empty space. This is because electromagnetic waves do not require a medium to propagate, unlike mechanical waves such as sound waves which rely on a medium such as air or water.
A compression wave