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Free electrons

How do anti-static sprays work? Where do the electrons go to or come from to neutralise a charged surface?

John Chapman, Perth, Western Australia

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Categories: Domestic Science, Technology.

Tags: electrons, static, spray.

 

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Fading thermal ink receipts

Why do thermal ink receipts fade out when you put them between statically charged surfaces?

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  • Asked by p_shim
  • on 2010-10-16 15:04:59
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Categories: Technology, Unanswered.

Tags: paper, static, ink, receipts.

 

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Can static electricity stop a televison from working but work again as soon as dscharged?

Is it possible for a television  to stop working because it's charged up with static? My grandmother's T.V. stops working every half-hour or so, the screen just goes black, but as soon as I touch it it goes back to normal. I'm wondering if that's the problem and I discharge it. However I don't feel a shock when I touch it. It's not just me who can fix it by touch, anyone can do it, but my grandma now thinks I have magical powers relating to electronics! It's a 32" LCD bought in 2006.

 

Amrit Sidhu-Brar, Northampton, UK, Age 15

 

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Last edited on: 2010-04-15 17:16:36

Categories: Technology.

Tags: technology, electricity, television, static.

 

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Could a static elecricised ballon kill and Ant?

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  • Asked by Cynfelyn
  • on 2009-12-13 17:52:54
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Categories: Domestic Science.

Tags: physics, electricity, energy, static.

 

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Hair-raiser 2

We took the single span cable car from Lake Skalnaté, at 1751m above sea level, to Lomnický štít which, at 2634m above seal level, is the second highest peak in the Tatra mountains.

The peak was covered in cloud with little wind. The air was highly charged with static, I could feel what hair I have standing up and my wife got shocks from the metal handrails that surround the narrow ridge.

Suddenly I felt a slight but definite slap on my head. I was taken by surprise and was wondering if I had been hit by a bird when, perhaps two seconds later, there was a crack of thunder. I had seen no flash when I felt the slap, but had been looking down at the time.

My wife did not notice the effect but felt it prior to a second thunder clap, I did not feel the effect the second time, the lightning was again unseen.

The sensation definitely felt like a physical contact and I firmly link it to the lightning.

What was it we experienced and how could it precede the sound?

 

 

I avoided holding the handrails, which were earthed, after hearing the thunder. Was I correct in assuming this would be safer than holding them?

 

Would the steel cable  to the ground over 883m below not have been very attractive to lightening and how would this have been protected against at the winding gear?

Regards

Hal

 

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  • Asked by Hal
  • on 2009-08-08 15:02:48
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Categories: Weather .

Tags: electricity, lightning, static, electromagnetic.

 

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