Lesson 4 Creative Ideas for a Better World
Science for All
Microscopes have been an essential tool for science for over 400 ____
If microscopes had not been invented, we might not have discovered bacteria or the microscopic structures of ____ organisms.
In certain areas of ____ world, however, even basic light microscopes are not accessible due to their cost.
It was the Foldscope that Manu Prakash and Jim Cybulski ____ as a solution to the problem.
____ Foldscope, a paper microscope they invented, achieved powerful magnification, and cost less than a dollar in parts.
“The idea has been to ____ science accessible to everybody,” said Prakash.
While researching methods
While researching methods for identifying infectious diseases in ____ in 2011, Prakash came across an expensive microscope that was meant for malaria testing but was unused.
Malaria takes over half a million lives annually, so early diagnosis is crucial in ____ its spread.
But then, why was the microscope ____ unused?
Prakash ____ that there were multiple reasons.
The microscope was bulky and ____ to transport, required training to operate, and was difficult to maintain.
____ it was a delicate and expensive instrument, even trained lab workers felt nervous about using it.
____ began wondering.
A cheap, strong microscope could ____ thousands of lives.
After he returned to Stanford University,
After he returned to Stanford University, where he was a professor, he started to reflect on ____ idea.
It was not until he met Jim Cybulski that his idea of ____ affordable and accessible microscope began to take shape.
A graduate student at Stanford, Cybulski was looking for ways ____ apply his engineering background to make a difference in the real world.
After hearing Prakash’s vision, Cybulski quickly recognized its potential and was eager to ____
For a microscope to function properly, it must meet certain ____ requirements.
These include an eyepiece, a tube through which the viewer looks, ____ a lens for magnification.
The microscope ____ also have a component that can hold a specimen and move from side to side to explore different areas of the specimen.
Furthermore, a mechanism to bring the specimen into focus, usually accomplished by moving it closer to or ____ from the lens, is necessary.
Finally, a light source is required to illuminate ____ specimen.
An ideal microscope
An ideal microscope would be made ____ the best performing materials and mechanisms for each component.
However, such ____ microscope would likely be enormously expensive.
On the other hand, a ____ microscope may not be able to deliver high performance.
Prakash and Cybulski experimented with various designs and materials in ____ to find a suitable compromise.
While many manufacturers might have settled for a middle ground between these two extremes, Prakash and Cybulski were determined to create ____ microscope that was both inexpensive and high-performing, while remaining accessible to all.
After drawing various designs on paper, Prakash and Cybulski realized ____ paper could be an excellent medium for their microscope.
It was cheap, easy ____ cut and fold with precision, and widely available.
They faced many challenges during ____ attempts to develop the perfect design.
Ultimately, they settled on waterproof cardboard paper with a small glass ball lens and named their invention the ____
The Foldscope provides
The Foldscope provides a magnification of 140 times, making it capable of examining blood ____ bacteria, and single-celled organisms.
It is incredibly portable, weighs just 8 grams, fits easily in a pocket, and requires no external ____ source.
Moreover, the Foldscope is built to last, capable of ____ a three-story fall.
Its usefulness is ____ enhanced by its compatibility with phone cameras, allowing users to take pictures and record images of the specimen.
It is also possible to project a high-resolution image on a wall using the phone ____
It is no surprise that over 1.8 million Foldscopes have been distributed in over 160 countries, ____ it an invaluable tool for scientists worldwide.
The ____ has been utilized for various purposes beyond malaria diagnosis.
In ____ it has also been instrumental in detecting fake antimalarial drugs.
The drugs are responsible ____ over 100,000 deaths annually in sub-Saharan Africa, mostly among children under five.
When crushed into powder and examined under a Foldscope, real drugs appear as uniform particles, while ____ drugs appear as mere powder.
Furthermore, over 400 scientific papers have been published using Foldscope data, ____ around 1,200 projects are currently in progress in India.
In the United States, Foldscope programs in public libraries ____ introduced many children to the wonders of science.
If Prakash and Cybulski had given up on their idea of the Foldscope, these achievements could ____ have occurred.
As billions of people lack access to health care and thousands of preventable deaths occur, science ____ playing a crucial role in finding solutions to these challenges.
Tools like the Foldscope, which make science accessible ____ everyone, are becoming increasingly important.
공통영어2 YBM 박준언 4과 본문 한줄 해석 Science for All