Question

1 point
who Invented Thermos Flask? *
O [A]. Sir James Dewar
O
[B]. Sir Isaac Newton
O [C]. Sir Thomas Alva Edison
O [D]. Sir Antoine Lavoisier​

Answer 1

Answer: [A] SIR JAMES DEWAR

EXPLANATION :James Dewar invented the flask in the course of his cryogenic research; he had been interested in liquid gases for over ten years, first demonstrating the research of others (performing the first public demonstration in Britain of the liquefaction of oxygen) and then beginning his own investigations.

credits to google

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