Audio scale up student’s book Course 3 Ministry of Higher and Secondary Specialized Education of the Republic of Uzbekistan State University of World Languages

Immortal Tracks
Lesson 11
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Scale U p

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D: I guess, I know him. He is the inventor of 
Coca-Cola. In 1886 he relied in Atlanta druggist to 
test and help him perfect the recipe for the beverage, 
which he formulated by trail and error. With the help 
of druggist, he worked out a set of directions for its 
preparation that eventually included blending the base 
syrup with carbonated water by accident when trying 
to make another glass.
R: Yes, you know about him. What about Wilhelm 
Conrad Röntgen? Have you heard about him before?
D: yes, he is the scientist who dealt with x-rays.
R: In 1895 when he was performing an experiment 
using cathode rays, he realized that some fluorescent 
cardboard across the room was lighting up in spite 
o f the fact that there was a thick block between the 
cathode ray and the cardboard. The only explanation 
was that light rays were actually passing through the 
solid block.
D: And nowadays it’s used as widely in medicine 
as penicillin. Do you know the inventor o f it?
R: No, and who is he?
D: Sir Albert Fleming. In 1928 Fleming noticed 
a Petri dish containing Staphylococcus plate culture 
he mistakenly left open, was contaminated by blue 
green mould, which formed a visible growth. Fleming 
concluded the mould released a substance that 
repressed the growth and lying the bacteria. He grew 
a pure culture and discovered it was a penicillium 
mould.
R: Our daily lives are governed by inventions. 
From what we wear to the food we eat and our methods 
o f travel - it’s all been invented or significantly altered 
by inventions.
D: Yes, and sometimes an invention comes along 
that doesn’t just change the way we do things but 
changes the world. Thank you, Rustam for your help.
R: Not at all. Now I have to go, I have classes. See 
you.
D: See you.