What can be measured but not seen?
[3363] What can be measured but not seen? - What can be measured but not seen? - #brainteasers #riddles - Correct Answers: 98 - The first user who solved this task is aysan saidie
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What can be measured but not seen?

What can be measured but not seen?
Correct answers: 98
The first user who solved this task is aysan saidie.
#brainteasers #riddles
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Three doctors

Three doctors are waiting in line to get into the Pearly Gates. St. Peter walks out and asks the first one, "What have you done to enter Heaven?"

"I am a pediatrician and have brought thousands of the Lord's babies into the world."

"Good enough to enter the gates," replied St. Peter and in he goes. The same question is asked of the second doctor.

"I am a general practioner and go to Third World countries three times a year to cure the poor." St. Peter is impressed and allows him through the gates. The third doctor steps up in line and knowing the question, blurts out, "I am a director of an HMO."

St. Peter meditates on this for a while and then says, "Fine, you can enter Heaven...but only for 2 days."

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Hilary Koprowski

Died 11 Apr 2013 at age 96 (born 5 Dec 1916).Polish virologist and immunologist who discovered the first vaccine against poliomyelitis which was based on oral administration of attenuated polio virus. In researching a polio vaccine, he decided to focus on the use of live viruses that were attenuated (rendered non-virulent) instead of the killed viruses that became the basis for the injections created by Jonas Salk. Koprowski viewed the live vaccine as more powerful since it entered the intestinal tract directly and could provide lifelong immunity, whereas the Salk vaccine required boosters. Also, taking a vaccine by mouth is easy, whereas an injection is more expensive and needs medical facilities. It was taken by the first child on 27 Feb 1950 and within 10 years was used for immunization on four continents.
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