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From: chuck@eng.umd.edu (Chuck Harris)
Newsgroups: comp.sys.ibm.pc
Subject: Re: GAS PLASMA SCREENS!!
Message-ID: <1990Apr12.211516.19059@eng.umd.edu>
Date: 12 Apr 90 21:15:16 GMT
References: <1990Apr10.002440.9812@ux1.cso.uiuc.edu> <1074@lectroid.sw.stratus.com> <5096@cbnewsl.ATT.COM>
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In article <5096@cbnewsl.ATT.COM> feg@moss.ATT.COM writes:
>In article <1074@lectroid.sw.stratus.com>, dts@pwllheli.sw.stratus.com (Daniel Senie) writes:
>> In article <26226d66.1467@petunia.CalPoly.EDU>,
>> jdudeck@polyslo.CalPoly.EDU (John R. Dudeck) writes:
>> 
>> |>CRT's DO NOT emit any radiation other than visible light!

- A number of years ago I got curious about COLOR CRT's and ionizing
- radiation.  So to find out a bit about it I just put a Geiger Counter
- to the face of the color TV's CRT, and guess what???
- The CRT was increasing the background radiation by about 2 times!
-
- Well, your mention of CRT radiation reminded me of that experiment, so
- since I spend a lot of time in front of a COLOR CRT, I thought I'd measure
- the x-rays again, and guess what???    NOTHING, Nada, none!
-
- How can this be?  Did I remember wrong?   No, my memory is ok, it is just
- that the first time I measured a color CRT was about 15 years ago.  In the
- 15 years since then, color CRT's have changed from being a "window to the
- world" that sat 6-7 feet away from the viewers to the common CRT on your
- desk 18" away from your face.
-
- The old color TV of 15 years ago used about 30Kv anode potential. Your
- new color terminal/PC uses about 20Kv and has LEAD in the glass to block
- any of the soft X-Rays that are produced.
>> 
>> Explain this: Take the handset off of a standard telephone (Bell 2500
>> saeries, for example) and unplug it from the phone. Hold the handset
>> near your CRT and put your ear to the receiver. Where do you suppose the
>> buzzing noise you hear is coming from?
>> 
>
- This effect is the one that worries me more than any X-Rays coming from
- your PC's monitor.  There are a lot of people theorizing that Extremely
- Low Frequencies (ELF) radiated from Cathode Ray TERMINALS (CRT is ambigous),
- and the power lines, might be causing Cancer, Leukemia, miscarraiges and
- birth defects.
-
- As they say: "all the facts aren't in yet"  I am anxiously awaiting the
- facts.

		Chuck Harris
		C.F. Harris - Consulting