Why would blowing a raspberry alter the way you see TV?

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Jo Smith

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Jo Smith asked the Naked Scientists:
   
My husband claims that when he blows a low raspberry whilst watching TV, the picture goes wavy and looks odd.  He says it's a bit like when computer screens are shown on television, due to the refresh rate.  I have a tongue piercing, and can't seem to blow a low enough raspberry to see this, but is it really happening, or is he just being weird?

Thanks,
Jo

What do you think?

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Offline neilep

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Why would blowing a raspberry alter the way you see TV?
« Reply #1 on: 29/11/2009 16:28:49 »
Nope, he's not being weired at all !

It works for me too...I'm not a scientist but I can tell that the vibrations caused by the raspberry making lips are reverberating through my skull along and or onto my eyeballs causing them to jitter rapidly and thus what is viewed is also jumping too !

Try it with just your lips if your pierced tongue won't allow for raspberry blowing fun !
Men are the same as women, just inside out !

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Offline yor_on

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Why would blowing a raspberry alter the way you see TV?
« Reply #2 on: 29/11/2009 20:35:22 »
Does this mean that for that perfect viewing pleasure we all need to pierce our tongues?
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Offline RD

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Why would blowing a raspberry alter the way you see TV?
« Reply #3 on: 29/11/2009 21:12:07 »
Similar distortions occur with multiplex displays, (e.g. LED clock)...

Quote
Because most multiplexed displays do not present the entire display simultaneously, they are subject to "break up" if the observer's point of regard is in motion. For example, if the observer were to rapidly swing their vision across a multiplexed display, they might see a jumble of individual digits rather than a coherent display. This effect can also sometimes be provoked by chewing hard candy; this causes vibration of the user's eyes, leading to the break-up of the display.
http://en.wikipedia.org/wiki/Multiplexer

Using an electric toothbrush can also cause the effect.
« Last Edit: 29/11/2009 21:13:58 by RD »

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Offline Karen W.

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Why would blowing a raspberry alter the way you see TV?
« Reply #4 on: 29/11/2009 21:29:41 »
Nope, he's not being weired at all !

It works for me too...I'm not a scientist but I can tell that the vibrations caused by the raspberry making lips are reverberating through my skull along and or onto my eyeballs causing them to jitter rapidly and thus what is viewed is also jumping too !

Try it with just your lips if your pierced tongue won't allow for raspberry blowing fun !


How does one use both tongue and lips at the same time to blow a raspberry? I can do either or but not both and everything jitters and jumps...Practicing.....

wait.. wait..... wait.....*tries again, repeatedly sticking tongue out further and blowing...* 

YAYYYYYYYYYYY! I did it both indeed work creating same effect! LOL...

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Offline Mr. Scientist

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Why would blowing a raspberry alter the way you see TV?
« Reply #5 on: 29/11/2009 23:07:06 »
hahaha
http://www.youtube.com/watch?v=SZGcNx8nV8U

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Offline Mr. Scientist

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Why would blowing a raspberry alter the way you see TV?
« Reply #6 on: 29/11/2009 23:07:29 »
funniest thread i've seen today :)
http://www.youtube.com/watch?v=SZGcNx8nV8U

''God could not have had much time on His hands when he formed the Planck Lengths.''

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Offline FuzzyUK

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Why would blowing a raspberry alter the way you see TV?
« Reply #7 on: 29/11/2009 23:14:11 »
My husband claims that when he blows a low raspberry whilst watching TV, the picture goes wavy and looks odd.

From which end does he blow a raspberry? My TV picture goes wavy when I emit shockwaves from both ends.