The Silicon Jungle by David H. Rothman
5. Polarizing filters. They may reduce brightness and shorten tube life,
894 words | Chapter 101
since you must crank up the tube to compensate; at $100 or more, they
are more expensive than the other add-ons. But they give you a better
image than other filters. The contrast especially can be impressive.
Noise Reduction
Don’t just buy the fastest, the cheapest, printer. Look for one with
good manners toward the humans nearby—a _quiet_ printer.
A daisy wheel can be a real offender. What more can you expect of a
machine with a metal hammer constantly striking away? And dot-matrix
printers often make a higher-pitched sound that mercilessly cuts through
walls.
So ask your printer supplier for noise figures if you think this will be
a problem. Military standards say that for work needing heavy
concentration—in areas like libraries and conference rooms—the sound
level must be no more than 45 decibels on the dB(A) scale, which allows
for sensitivity of the ear at various sound pitches. Otherwise, aim for
a level less than 65 decibels. You may be able to rent the necessary
meter from a scientific instrument store. Measure the sound from the
distance someone’s head would be when he was working. Here again, you
might ask the supplier for a look-see at an existing installation.
Put your printers if necessary inside padded wooden boxes; carpet; drape
walls; install sound-muffling panels on ceilings and walls, perhaps.
The less echoey and factorylike your office is, the more productive it
will be.
Air Conditioning, Heat, And Ventilation
Around the first week of January 1983, when _Time_ honored the computer
as the “Machine of the Year,” a Commerce Department computer
ungratefully stopped working and delayed the release of an important
government report.
The reported cause was nothing more than a dehumidifier motor out of
whack; perhaps the room got too moist for the computer sensor.
If so, I wasn’t surprised. Computers and related machinery can sometimes
be quirky about their surroundings. My old Anderson Jacobson daisywheel
printer, later sold, wouldn’t run unless the room temperature was above
fifty degrees. Since I was comfortable at seventy degrees, I obliged the
AJ.
In our attentiveness to machinery, however, let’s not forget the people
nearby.
“You can see the heat wafting out the backs of our VDTs,” said a woman
with the northeastern insurance office—and yet the firm didn’t turn up
the air conditioning. “What might happen,” said Waters about a hot
insurance office, “is the [overheated computers] may go down and they’ll
pay out extra money, anyway.”
Look inside a VDT and you’ll very likely find an orange glow in the neck
of the tube. The heat there may be no more than a light bulb’s, but on a
hot day, with more than one machine in the same room, you’ll want your
air conditioning to be up to the job.
At the same time, having a room too cool—even in just a few places—can
harm productivity. An employee in the insurance office said her
coworkers, when not using the terminals, sometimes wore gloves.
As for bad ventilation, it, too, can jinx production and add to sick
leave, and in recent years, especially, it’s been a problem, as
companies tightened up their buildings to save energy. People in
high-paced jobs or those requiring concentration may suffer the most.
Healthy Honesty
When Laura Moore was pregnant, she neither smoked nor drank—not even
coffee.
She did, however, operate a computer terminal for a telephone company in
Renton, Washington, near Seattle, and she was one of three VDT operators
there with problem pregnancies within a year and one-half.[44]
Footnote 44:
The facts of the Renton, Washington case come from Laurie Garrett’s
National Public Radio interview with Laura Moore, which aired August
12, 1982.
Laura Moore, after nineteen hours of labor, gave birth to a son with a
birth defect called spina bifida. “We didn’t see it at first,” she said.
“We saw a larger head and a foot that was a little odd and distorted.
But when the nurse picked him up, then we saw this huge opening in his
back, which is a spina bifida.” Laura was “devastated. Just devastated.
We—I went through a severe depression afterward.”
Moore is just one of many people worried about VDTs. In Massachusetts a
pregnant journalist, fearing radiation, wore a leaded apron. (A leaded
apron’s weight on the mother might itself harm an unborn child.) At the
_New York Times_ two young editors developed cataracts and filed for
workers compensation, blaming their computer screens.
“We’ve heard of cases of everything from bad dreams of computers chasing
people to psychic distress where people have attacks of depression,”
says Michael Smith, the ex-NIOSH man. “But it can’t be linked
specifically to the VDT.” And yet NIOSH as of this writing was
continuing safety studies. “We might find that it has nothing to do with
the video tubes,” Smith says of problem pregnancies among terminal
operators. “It could be part of the circuitry.... It may be from job
stress.” Meanwhile, proven problems—like eyestrain—bedevil men and women
on the tube. When 1,236 secretaries and word processing-operators
replied to a survey done for a major disk-maker, almost 70 percent
worried about potential health complication. Some 63 percent told of
eyestrain, and 36 percent reported backaches. Almost 80 percent wanted
better lighting and more time to rest their eyes.
So, regardless of how your equipment supplier vouches for your
computers’ safety, keep two facts in mind:
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