Calculate the number 320
[5947] Calculate the number 320 - NUMBERMANIA: Calculate the number 320 using numbers [8, 5, 7, 5, 57, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 16 - The first user who solved this task is Nílton Corrêa De Sousa
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Calculate the number 320

NUMBERMANIA: Calculate the number 320 using numbers [8, 5, 7, 5, 57, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 16
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math #numbermania
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Lightbulb Joke Collection 40

Q: How many body builders/weightlifters does it take to change a lightbulb ?

A: 6. One to change it and 5 to say "Man, you've got huge muscles !"


Q: How many Sun readers does it take to screw in a light bulb?

A: 10. One to hold the bulb and nine to rotate the ladder.


Q: How many Sun readers does it take to screw in a light bulb?

A: None, but one is enough to screw up the joke.


Q: How many blondes does it take to change a lightbulb ?

A: Duh.... whats a lightbulb???


Q: How many blondes does it take to change a lightbulb ?

A: It depends how many blondes there are, but some people prefer it with the lights off.


Q: How many poltergeists does it take to change a lightbulb ?

A: Three. One to unscrew the old bulb and drop it on the floor, one to put the new bulb in, and one to move a few more things about just for good measure.


Q: How many nihilists does it take to change a light bulb?

A: There is nothing to change.


Q: How many fatalists does it take to screw in a light bulb?

A: Sod it, we're all gonna die anyway.





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Svedberg's colloidal sol patent

In 1909, Swedish chemist Theodor Svedberg filed to patent his method of producing colloidal sols or gels, simultaneously in Great Britain, Germany, Denmark and Switzerland. By 1926, he received the Nobel Prize in Chemistry for his work with disperse systems. In colloidal systems, extremely fine particles are dispersed in a continuous medium, in which they remain suspended indefinitely. In molecular-disperse systems, the particles are large molecules like proteins or haemoglobin. Svedberg invented an ultracentrifuge to investigate them. At 40,000 revolutions/min, the particles were redistributed towards the periphery of the motion. Analysis of photographs of the distribution yielded the molecular weight of the particles.«
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