How many line segments on the drawing?
[283] How many line segments on the drawing? - How many line segments on the drawing? - #brainteasers #math #riddles - Correct Answers: 53 - The first user who solved this task is Sanja Šabović
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How many line segments on the drawing?

How many line segments on the drawing?
Correct answers: 53
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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Be My Valentine

A guy walks into a post office one day to see a middle-aged, balding man standing at the counter methodically placing "Love" stamps on bright pink envelopes with hearts all over them. He then takes out a perfume bottle and starts spraying scent all over them.
His curiosity getting the better of him, he goes up to the balding man and asks him what he is doing. The man says, "I'm sending out 1,000 Valentine cards signed, 'Guess who?'"
"But why?" asks the man.
"I'm a divorce lawyer," the man replies.
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Sergey Nikolayevich Winogradsky

Died 25 Feb 1953 at age 96 (born 1 Sep 1856).Russian microbiologist who helped to establish bacteriology as a major biological science. He was first to isolate the bacteria responsible for nitrification and nitrogen fixation by soil bacteria (1890).Winogradsky also studied bacteria that recycle other vital elements for use by other organisms - including ‘iron bacteria', and those which metabolize sulfur (1887-9) - deriving metabolic energy from inorganic nutrients. Previously, only organic substrates were considered suitable for microbes. The "Winogradsky column" is still used as an enrichment culture that simulates the muddy habitat of anoxygenic photosynthetic bacteria.[Name also spelled Sergei or Sergius.]
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