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It is a medical thermometer that uses gas instead of liquid to measure the temperature. Because of its high heat sensitivity, gas is a faster and better medium to measure the temperature with.
zero is equal to infinity
I have sold my invention, the (Samson) Electron Battery Accelerator due to the listing on IdeaConnection. Thanks, was a great place for exposure to the public!
– Ken F.
My Egg Cracker invention is now under licence in the United States, thanks to my listing on your inventions page.
– John O.