Wonders of the Universe

[Mickymoody]

Radiowaves don't work in a vacuum

Sound waves CANNOT travel though a vacuum.

Which one is it then Mick?

Both are correct, sound/radiowaves, distort the air around them, to produce a sound. ...

You are wrong about radiowaves. I can understand that you might be ignorant of physics, but shocked that your lack of awareness of the universe around you has stopped you noticing radio communication satellites.

Your foolish repetition of a completly wrong statement makes you look ridiculous.

Microwaves might work, but dont be presumptious.

 

[Monkeh]

Microwaves might work, but dont be presumptious.

Let's see some evidence of your claim. A little science behind the words.

 

[Nige F]

Radiowaves don't work in a vacuum

Sound waves CANNOT travel though a vacuum.

Which one is it then Mick?

Both are correct, sound/radiowaves, distort the air around them, to produce a sound. ...

You are wrong about radiowaves. I can understand that you might be ignorant of physics, but shocked that your lack of awareness of the universe around you has stopped you noticing radio communication satellites.

Your foolish repetition of a completly wrong statement makes you look ridiculous.

Microwaves might work, but dont be presumptious.

hello Monkeh

 

[Biguns]

Monkeh

Don't get drawn into this persons convoluted universe. I learned the hard way. Read the last few posts on this thread

//www.diynot.com/forums/viewtopic.php?t=234954&start=45

 

[wreckedit]

You watch these rubbish Star Wars like programmes, and think that's reality? You can't have an explosion in space, as there is no surrounding oxygen to ignite a fire, so an explosion is an implosion, because, you guessed it, a lack of oxygen, and lots of vacuum.

Did you really mean to say this because its so wrong. Explosions in space don't have to be caused by the us of oxygen. E.g. if you put an egg or a contained object in a vessel and then pumped down quickly it will explode. Something like a tv tube implodes when broken. Explosions are only the release of a gaseous substance at a high pressure to a low pressure environment. No oxygen is needed to do that. Even a balloon over filled water can do that.

 

[MisterG]

Both are correct, sound/radiowaves, distort the air around them, to produce a sound. There is no air in space, it's a vacuum. Sound doesn't exist. Remember the quote 'Nobody heard you scream in space' ?

Radiowaves are totally different from sound waves and can traverse a vacuum.

Only light can travel through a vacuum. Not sound. As soundwaves have nothing to bounce off. As it's a vacuum.

Radio waves are also part of the electromagnetic spectrum, along with light, microwaves, television waves, infra-red, ultraviolet, X-rays, Gamma rays, they can all traverse a vacuum as I said on page 3.

You watch these rubbish Star Wars like programmes, and think that's reality? You can't have an explosion in space, as there is no surrounding oxygen to ignite a fire, so an explosion is an implosion, because, you guessed it, a lack of oxygen, and lots of vacuum.

The ships are full of air, fire onboard + exploisive decompression will probably look like an explosion to an external observer.

 

[sooey]

micky get down to jodrell bank and tell them that dirty big radio telescope they've got is useless.

 

[Space cat]

You can't have an explosion in space, as there is no surrounding oxygen to ignite a fire, so an explosion is an implosion, because, you guessed it, a lack of oxygen, and lots of vacuum.

You certainly can have explosions in space though they behave quite differently to explosions in our atmosphere. For example, a nuclear explosion in space produces very little blast but lots of heat, most of it in the X-ray part of the spectrum.

There would be flames around an exploding space ship if it contained oxygen (as manned ones must) but I strongly suspect that the movie ones are overdone for greater entertainment value. I even heard somewhere that all movie explosions are wrong. They're shot at a higher speed than normal so that they play back in slow motion.

 

[EddieM]

I always knew Jodrell Bank was a waste of money

 

[MisterG]

micky get down to jodrell bank and tell them that dirty big radio telescope they've got is useless.

At the risk of stating the obvious for everyone - 1, a radio telecope picks up radio waves from objects in space, so the radio waves would have traversed a partial vacuum to get here

 

[Monkeh]

Monkeh

Don't get drawn into this persons convoluted universe. I learned the hard way. Read the last few posts on this thread

//www.diynot.com/forums/viewtopic.php?t=234954&start=45[/QUOTE]

Ah yes, that thread. I had a good old laugh reading that.

 

[EddieM]

I think the timing of the posts maybe prescient !!

 

[PrenticeBoyofDerry]

I have watched the two episodes of this,
It seems to me he is either talking ballyorks or I am hearing it.

 

[spacecat]

I have watched the two episodes of this,
It seems to me he is either talking ballyorks or I am hearing it.

It seems pretty straight forward to me but didnt Sam Neil Present a very similar programme a few years ago covering pretty much the same topics?

Just checked yes he did called amazingly ..SPACE! i think it was better than this prog

 

[PrenticeBoyofDerry]

It confuses the hell out of me.
White giants, red giants, black giants, gas giants, new york giants, jolly green giants. Red dwarfs, white dwarfs, black dwarfs, brown dwarfs, seven dwarfs, jolly green dwarfs, smurfs!
It's all stellar nonsense and thermonuclear confusion to me!