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The passage below is accompanied by four questions. Based on the passage,
choose the best answer for each question.
The history of any major technological
or industrial advance is inevitably shadowed by a less predictable history of unintended
consequences and secondary effects — what economists sometimes call "externalities."
Sometimes those consequences are innocuous ones, or even beneficial. Gutenberg invents the
printing press, and literacy rates rise, which causes a significant part of the reading
public to require spectacles for the first time, which creates a surge of investment in
lens-making across Europe, which leads to the invention of the telescope and the microscope.
Oftentimes the secondary effects seem to belong to an entirely different sphere
of society. When Willis Carrier hit upon the idea of air-conditioning, the technology was
primarily intended for industrial use: ensuring cool, dry air for factories that required
low-humidity environments. But…it touched off one of the largest migrations in the history
of the United States, enabling the rise of metropolitan areas like Phoenix and Las Vegas
that barely existed when Carrier first started tinkering with the idea in the early
1900s.
Sometimes the unintended consequence comes about when consumers use an
invention in a surprising way. Edison famously thought his phonograph, which he sometimes
called "the talking machine," would primarily be used to take dictation….But then later
innovators… discovered a much larger audience willing to pay for musical recordings made on
descendants of Edison's original invention. In other cases, the original innovation comes
into the world disguised as a plaything…the way the animatronic dolls of the mid-1700s
inspired Jacquard to invent the first "programmable" loom and Charles Babbage to invent the
first machine that fit the modern definition of a computer, setting the stage for the
revolution in programmable technology that would transform the 21st century in countless
ways.
We live under the gathering storm of modern history's most momentous
unintended consequence….carbon-based climate change. Imagine the vast sweep of inventors
whose ideas started the Industrial Revolution, all the entrepreneurs and scientists and
hobbyists who had a hand in bringing it about. Line up a thousand of them and ask them all
what they had been hoping to do with their work. Not one would say that their intent had
been to deposit enough carbon in the atmosphere to create a greenhouse effect that trapped
heat at the surface of the planet. And yet here we are.
Ethyl (leaded fuel) and
Freon belonged to the same general class of secondary effect: innovations whose unintended
consequences stem from some kind of waste by-product that they emit. But the potential
health threats of Ethyl (unleaded fuel) were visible in the 1920s, unlike, say, the
long-term effects of atmospheric carbon build up in the early days of the Industrial
Revolution….
Indeed, it is reasonable to see CFCs (chlorofluorocarbons) as a
forerunner of the kind of threat we will most likely face in the coming decades, as it
becomes increasingly possible for individuals or small groups to create new scientific
advances — through chemistry or biotechnology or materials science — setting off unintended
consequences that reverberate on a global scale.
Question 15 : The author lists all of the following examples as "externalities" of major technical advances EXCEPT:
Externalities are secondary effects of technological advances. All options except 3 relate to secondary effects. Cooling and de-humidifying of factories was the primary intended effect of air-conditioning.
The question is " The author lists all of the following examples as "externalities" of major technical advances EXCEPT:"
Choice C is the correct answer.
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