Light is an electromagnetic wave which needs no medium to be propagated. Evidence of this exist in the ability for us to see and feel the heat and light from the sun which is millions of miles away from us in space which is a vacuum. We can see the reflected light from the planets and from the moon even though there is a great distance between them and us and that space is a vaccum. We can also see stars trillions of miles away from us situated in the vacuum of space. All of these show how light can travel in a vacuum. Also an incadescent light bulb has a vacuum in side it and light still can make it from the filament to the person using it.
Yes it can. An electromagnetic wave (which includes light) is a bit like a weight on a spring, bouncing up and down. The changing magnetic field causes a changing electric field and vice versa. (cf maxwells equations) These effects do not rely on a medium to support them - in the same way that the weight and spring dont rely on air to work.
Sound waves are different - they are compression waves in the transmitting medium - so in the absence of any transmitting medium (ie in a vacuum) they dont work.
Evidence - well as people have said the light from the sun and stars reaches us through space which is a near vacuum. Also early light bulbs used a filament in an evacuated glass bulb - however again this was only a partial vacuum. As its impossible to get a perfect vacuum then we have to settle for this as our best approximation.
No light does not travel through an opaque object such as a vacuum cleaner.Even if it's a dyson.
Sorry I couldn't resist.
Ok seriously of course light travels through a vacuum. It travels through empty space to get from the sun (or any star you see) to earth doesn't it? The real question that will burn your bacon bits for brains is: Is there really such a thing as a perfect vacuum?
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.it does not need any medium to travel
light cannot travel thru a perfect vacuum..obviously the outer space is not a perfect vacuum..everything that was taught to us is totally wrong..every phenomena we experience is simply the different movement of atoms within atoms within atoms within atoms..light cannot form without the occurance of heat..heat is simply the rapid vibrations of atoms within atoms
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Light is an electromagnetic wave which needs no medium to be propagated. Evidence of this exist in the ability for us to see and feel the heat and light from the sun which is millions of miles away from us in space which is a vacuum. We can see the reflected light from the planets and from the moon even though there is a great distance between them and us and that space is a vaccum. We can also see stars trillions of miles away from us situated in the vacuum of space. All of these show how light can travel in a vacuum. Also an incadescent light bulb has a vacuum in side it and light still can make it from the filament to the person using it.
Yes it can. An electromagnetic wave (which includes light) is a bit like a weight on a spring, bouncing up and down. The changing magnetic field causes a changing electric field and vice versa. (cf maxwells equations) These effects do not rely on a medium to support them - in the same way that the weight and spring dont rely on air to work.
Sound waves are different - they are compression waves in the transmitting medium - so in the absence of any transmitting medium (ie in a vacuum) they dont work.
Evidence - well as people have said the light from the sun and stars reaches us through space which is a near vacuum. Also early light bulbs used a filament in an evacuated glass bulb - however again this was only a partial vacuum. As its impossible to get a perfect vacuum then we have to settle for this as our best approximation.
No light does not travel through an opaque object such as a vacuum cleaner.Even if it's a dyson.
Sorry I couldn't resist.
Ok seriously of course light travels through a vacuum. It travels through empty space to get from the sun (or any star you see) to earth doesn't it? The real question that will burn your bacon bits for brains is: Is there really such a thing as a perfect vacuum?
Light waves do not need a medium to travel through. They can travel through a vacuum.
http://science.howstuffworks.com/light.htm/printab...
yes light can travel through vacuum because it is an electromagnetic wave while these waves don't require any medium for their propagation.
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.it does not need any medium to travel
light cannot travel thru a perfect vacuum..obviously the outer space is not a perfect vacuum..everything that was taught to us is totally wrong..every phenomena we experience is simply the different movement of atoms within atoms within atoms within atoms..light cannot form without the occurance of heat..heat is simply the rapid vibrations of atoms within atoms
Sure. Look how empty Outer Space Is...-No air, very little dust or debris... Light has NO Problem streaking through It ! :)
yes as light does not need any medium to propagate
Think incandescent light bulb.