What is more useful when it ...
[4095] What is more useful when it ... - What is more useful when it is broken? - #brainteasers #riddles - Correct Answers: 35 - The first user who solved this task is Fazil Hashim
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What is more useful when it ...

What is more useful when it is broken?
Correct answers: 35
The first user who solved this task is Fazil Hashim.
#brainteasers #riddles
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EVER WONDER

- Why the sun lightens our hair, but darkens our skin?
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- Why women can't put on mascara with their mouth closed?
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- Why don't you ever see the headline "Psychic Wins Lottery"?
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- Why is "abbreviated" such a long word?
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- Why is it that doctors call what they do "practice"?
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- Why is it that to stop Windows 98, you have to click on "Start"?
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- Why is lemon juice made with artificial flavor, and dishwashing liquid
- made with real lemons?
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- Why is the man who invests all your money called a broker?
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- Why is the time of day with the slowest traffic called rush hour?
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- Why isn't there mouse-flavored cat food?
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- When dog food is new and improved tasting, who tests it?
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- Why didn't Noah swat those two mosquitoes?
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- Why do they sterilize the needle for lethal injections?
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- You know that indestructible black box that is used on airplanes? Why
- don't they make the whole plane out of that stuff?
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- Why don't sheep shrink when it rains?
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- Why are they called apartments when they are all stuck together?
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- If con is the opposite of pro, is Congress the opposite of progress?
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- If flying is so safe, why do they call the airport the terminal?
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Polio virus

In 1955, American investigators Carlton Schwerdt and F.L. Schaffer crystallized the polio virus. This was the first animal virus to be obtained in crystalline form. (The first plant virus, tobacco mozaic virus, had been crystallized in 1935 by W.M. Stanley.) Each virus crystal is composed of many thousands of virus particles. Virus preparations pure enough to crystallize usually provide the best material for chemical studied. This was used to split the polio virus into infectious and non-infectious parts. Their research laid the groundwork for the polio vaccine.(Reference: Proc. Natl. Acad. Sci. 41:1020-1023)
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