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Calculate the number 9618

NUMBERMANIA: Calculate the number 9618 using numbers [2, 3, 8, 6, 99, 901] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

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Before you start to judge me

Before you start to judge me, step into my shoes and walk the life i'm living, and if you get as far as i am, just maybe you will see how strong i really am.

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Teflon

In 1938, Du Pont researcher Roy J. Plunkett and his technician Jack Rebok accidentally discovered the chemical compound polytetrafluoroethylene (PTFE), later marketed as Teflon. Plunkett was researching chemical reactions of the gas perfluoroethylene in order to synthesize new types of refrigerant gases. Rebok found an apparently defective cylinder of this gas, since no pressure was found when the valve was opened, even though the cylinder weight was the same as full cylinders. Rebok suggested sawing it open to investigate. Inside was a slippery white powder. Plunkett found it had unusual properties, a wonderful solid lubricant in powdered form, was chemically inert and had a very high melting point. He realized it was formed by an unexpected polymerization. It was patented on 4 Feb 1941.

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