Line travels in straight lines, under the principle of least time, aka Fermat's Principle. Light can be refracted at the boundary between two media meaning the path is bend but both parts of the path remain straight lines. Technically, light follows a space-time geodesic which might be curved, but locally this is too small to detect.
Very often tornadoes, will travel in a straight line, but many do not, following meandering or curved paths instead.
air,glass,and water,if the medium does not change it will travel in straight lines
Light rays travel in straight paths as transverse waves. It needs no medium to travel along.
Light Rays travel in straight paths as transverse waves. It needs no medium to travel along.
It's always straight - as far as the light is concerned. If space is curved then the light follows the curve.
Photons do travel in a straight path. To a person observing the photons though they will appear to be curved because of the gravitational field.
Very often tornadoes, will travel in a straight line, but many do not, following meandering or curved paths instead.
air,glass,and water,if the medium does not change it will travel in straight lines
travels through a uniform medium
Light rays travel in straight paths as transverse waves. It needs no medium to travel along.
Light Rays travel in straight paths as transverse waves. It needs no medium to travel along.
Kepler's Law: "The orbits of the planets are ellipses with the Sun at one of the foci."
No, as the world is round, the path the sub took would have to be equally curved.
It's always straight - as far as the light is concerned. If space is curved then the light follows the curve.
A wave of kinetic energy requires a medium to travel though.
Light travels in straight lines. However, 'straight' ain't what it used to be. Our current understanding of the universe suggests that mass causes a localized distortion in space time, effectively curving space around itself. As a beam of light approaches a massive object, it can be affected in this way as it passes through the curved space. From outsie, it appears to travel in a curved path, but as far as the light is concerned, it's moving in a straight line -- it's just that the straight line exists in a curved reality, if you follow me.
Light, radiation, radio waves.