English(fiber optics) Flashcards

1
Q

a few years ago how did international phone signals were sent?

A

via satellite

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2
Q

what is now used to carry communications?

A

fiber optics

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3
Q

what is fiber optics

A

a thin glass fiber that can transmit signal at the speed of light

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4
Q

is fiber optic a new invention ?

A

no its not a new invention

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5
Q

where was fiber optics used in the past?

A

they were used in photophone by alexander graham bell who had earlier invented the telephone

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6
Q

2nd time that fiber optics become imp and why?

A

in 20th century they became imp in medicine to look inside the human body

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7
Q

first time that fiber optics were used?

A

in photophone

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8
Q

the next BIG step in the usage of fiber optics (the 3rd usage)was what and when ?

A

came in 1960,70s where scientists IMPROVED the technology in order to use it over long distance

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9
Q

NASA regarded fiber optics as what

A

NASA regarded fiber optics as one of the TOP SECRETS used in the APPOLO SPACE CRAFT ( the space craft that landed the first on moon )

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10
Q

when did apollo first land on moon ?

A

in 1969

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11
Q

when was the internet invented

A

1970 (before the late 1970 there was no internet)

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12
Q

when did the first modern digital age begin

A

with the first website 1991

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13
Q

the internet took of globally

A

after 2000

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14
Q

fiber optic cables can….

A

reach around the world under ground and under water

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15
Q

with fiber optics the speed of internet can….

A

increase far in the future

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16
Q

who invented the first website and why and when

A

Tim Berners Lee, did so to share the RESEARCH information’s among the other scientists more efficiently around the world in 1991

17
Q

www is short cut of

A

world wide web

18
Q

he gave it to the world …….

A

for free

19
Q

when was the telephone invented by who

A

1875 and he produced many other ideas…..

20
Q

the idea of fiber optics was fist used in……in ….by…

A

photophone in 1880

21
Q

now there is no escape from it(……)

A

internet

22
Q

internet supports education through……

A

schoolNet

23
Q

SchoolNet provides……

A

information and interactive sites for schools to share

24
Q

scoolNet was firs made in

A

canada

25
Q
A