[GreenKeys] teletype motor with the 'night light' on it, and OTHER flickering lights

Sun Feb 28 10:43:37 EST 2016

GM OMs;

George - I noticed that when I became a driver: there was a road
that I drove, on occasion, that by the time I was ready to exit, I
was ready to throw-up. I noticed the nicer the day, the worse it was
and that it never happened at night.

I came to realize that it was the stroboscopic effect - which I also
experienced at certain rock concerts in the 60's.

It is interesting that it affected me a lot, some of my friends a
little, and some of them not at all.

UE,
K2EAA - TONY
NNNN
ZCZC

On 02/28/2016 01:10 AM, Geo. Hutchison wrote:
> Back when U.S. 30 was a two-lane major east-west high way, they had
> problems with flickering lights.
>
> When the highway was built it seems that in the plains states they
> thought that planting trees along the south side the highway was a nice
> way to keep tourists and truckers a bit cooler during the summer months.
> Not sure of the species but in my dimming memory it seems like they were
> tall, most likely poplar.
>
> The long stretches of highway were nice, but as the years progressed it
> seemed that the accident rate along such highways was on a gradual
> increase.
>
> The trees were evenly spaced, and went for miles.
>
> As highway speeds increased,  cars began to go faster and faster, and
> the sun shining between the trees was affecting drivers who were prone
> to such things were adversely affected because as the flickering rate
> approached something like eight cycles, a person's brain could be
> affected, and seizures would result, causing an accident.
>
> The corrective action was to cut down trees in a random fashion, thus
> eliminating the stroboscopic effect.
>
> Even today a part of an electro-encephalogram includes a free head bath
> in a flashing light.
>
> Yes, this is totally off-topic, but if your teletype has a governed
> motor, put the cover on the machine, and refrain from driving with the
> machine in the car.
>
> OH - - - The mold for the 28 punch hammer heads is done and this coming
> Wednesday we'll start with a batch of 25.
> The mold was machined by a fellow former nuke who needed a project for
> his machine shop class. There was no charge for his efforts, and this
> will be reflected in the price of the product!!  And they'll be MADE IN
> AMERICA!!!!
>
> W7TTY
>
> On 2/27/2016 9:43 AM, Ralph Mowery wrote:
>> At 60 Hz there is not enough flicker from the incandescent lamp to
>> work a strobe disk.  At least not any modern lamps.  If there is any
>> flicker then there would not be any need for the tuning fork/shutter
>> to set the speed of the governed motors.
>> I have not been around any 25 HZ power, but have heard that there is
>> often enough flicker in those lights to cause many people problems.
>> I still have one of the turn table disks around and have used it some
>> way in the past to check the speeds. It takes a neon bulb or some
>> other gas filled tube operating off the 60 Hz house current to make it
>> work.  It will not work under any standard low wattage incandescent lamp.
>>
>>     ----- Original Message -----
>>     *From:* Richard Knoppow <mailto:1oldlens1 at ix.netcom.com>
>>     *To:* <mailto:greenkeys at mailman.qth.net>greenkeys at mailman.qth.net
>>     *Sent:* Saturday, February 27, 2016 11:28 AM
>>     *Subject:* Re: [GreenKeys] teletype motor with the 'night light'
>>     on it!
>>
>>        At 60Hz there is enough flicker from a low wattage incandescent
>>     lamp to work a strobe disc, for instance the little discs once
>>     sold for checking phonograph turntable speed.
>>        BTW, when I was a kid my parents visited the Canadian side of
>>     Niagra Falls, the power there was 25Hz, I could never get quite
>>     used to the flicker.
>>
>>
>>
>> ______________________________________________________________
>> GreenKeys mailing list
>> Home:http://mailman.qth.net/mailman/listinfo/greenkeys
>> Help:http://mailman.qth.net/mmfaq.htm
>> Post:mailto:GreenKeys at mailman.qth.net
>>
>> 2002-to-present greenkeys archive:http://mailman.qth.net/pipermail/greenkeys/
>> 1998-to-2001 greenkeys archive:http://mailman.qth.net/archive/greenkeys/greenkeys.html
>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:http://comcents.com/tty/greenkeyssearch.html
>>
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
>> Message delivered tow7tty at centurylink.net
>
>
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to tony.podrasky at gmail.com
>

-- 
WHAT WOULD YOU DO ON A FIRST DATE THAT WAS TURNING
SOUR? I'd run home and play dead. The next day I
would call all the newspapers - and make sure they
wrote about me in all the dead columns.
                                      CRAIG - age 9