What goes up and down the stai...
[2338] What goes up and down the stai... - What goes up and down the stairs without moving? - #brainteasers #riddles - Correct Answers: 41 - The first user who solved this task is Djordje Timotijevic
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What goes up and down the stai...

What goes up and down the stairs without moving?
Correct answers: 41
The first user who solved this task is Djordje Timotijevic.
#brainteasers #riddles
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Plane lost both engines

A plane is flying over the Mediterranean.
A pilots voice comes on And says a terrible thing has happened.
We’ve lost both engines and we’re gonna have to land in the Mediterranean.
The plane will stay afloat for a very short time.
And we’ll be able to open the door just long enough that everyone can get out.
We have to do this in an orderly fashion.
Everyone that can swim just go to the right wing and stand there.
Everyone who can’t swim just go to the left wing and just stand there.
Those of you on the right wing you’ll find a little island it’s in the direction of the Sun about two miles off, and as the plane goes under just swim in an orderly fashion out and you’ll be fine.
And for those of you on the left wing…

I want to thank you for flying Air Italia.

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Xerography

In 1938, xerography was demonstrated by Chester F. Carlson. With his assistant, Otto Kornei, Carlson used a sulphur coating on a zinc plate, vigorously rubbed with a handkerchief to apply an electrostatic charge. A glass slide was prepared using India ink to write "10-22-38 ASTORIA," then laid on the sulphur surface in a darkened room. After illuminating them with a bright incandescent lamp for a few seconds, the slide was removed. When lycopodium powder was sprinkled on the sulphur surface and blown off, there remained a near-perfect image of the writing. Permanent copies were made by transferring the powder images to wax paper and heating the sheets to melt the wax. Xerox is a term coming from "xerography" which means dry writing and is a trademark.
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