How many times can you subtr...
[2344] How many times can you subtr... - How many times can you subtract the number 5 from 25? - #brainteasers #math #riddles - Correct Answers: 129 - The first user who solved this task is Djordje Timotijevic
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How many times can you subtr...

How many times can you subtract the number 5 from 25?
Correct answers: 129
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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World Creativity and Innovation Day Jokes

April 21st is World Creativity and Innovation Day! Find some jokes about it!

Why did the scientist install a knocker on his laboratory door?
Because he wanted to win the "No-bell" prize!

What do you call an innovation in scissors?
Cutting-edge technology

When the first jackhammer was invented... ...it was a groundbreaking innovation!

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Cryosurgery

In 1960, Dr Irving Cooper received a Christmas gift that inspired his invention of the first cryosurgery device (to freeze tissue). The gift was a wine-bottle opener which lifted the cork by injecting carbon dioxide gas into the bottle. He observed the gas was very cold when released and he could direct small squirts from it to freeze tiny areas on the palm of his hand and watch them thaw. He also observed the freezing effect was very localized and isolated from the surrounding tissue. From this inspiration, he developed a technique of brain surgery in which he used liquid nitrogen flowing in a thin tube first to deaden, and then freeze, tremor-causing brain cells or tumours. The invention created a new field of surgery with applications for other areas of the body as well.
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