Calculate the number 621
[6456] Calculate the number 621 - NUMBERMANIA: Calculate the number 621 using numbers [7, 5, 2, 5, 31, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 11 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 621

NUMBERMANIA: Calculate the number 621 using numbers [7, 5, 2, 5, 31, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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Worcestershire sauce incident joke

A truck brimming with Worcestershire sauce meanders through the quaint Welsh town of Llanfairpwllgwyngyll, Anglesey, en route to Rhosllannerchrugog in Wrexham. Unexpectedly, it collides with a Nissan Qashqai.

Veering uncontrollably, the truck subsequently smashes into a car from Llanfihangel Tre’r Beirdd, injuring two otorhinolaryngologists inside. As one, already grappling with Schistosomiasis, succumbs to a myocardial infarction, an bystander, dialing emergency services on his Huawei, hastily reports the chaotic scene. The dispatcher inquires, "Can you tell me what happened?"

He responds, "It's hard to say."

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Spectrophotometer

In 1935, the first U.S. patent for a spectrophotometer was issued to Professor Arthur Cobb Hardy of Wellesley, Mass. (No. 1,987,441) which he called a “photometric apparatus.”It could detect two million different shades of colour and make a permanent record chart of the results. The patent was assigned to the General Electric Company of Schenectady, N.Y. which sold the first machine on 24 May 1935. It used a photo-electric device to receive light alternately from a sample and from a standard for comparison. It eliminated any need for the two beams (from sample and from standard) to travel different optical paths which in previous designs could introduce inaccuracies if one path varied from the other.«[Image: a "GE-Hardy" double-beam recording spectrophotometer photographed in 1938 showing Walt Disney with the instrument at his studios.]
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