My understanding is that they key components are the vacuum and the extreme cold. The vacuum allows a lot more heat to be transferred than there would be in anything held onto.
You're making the assumption that a vacuum can't be wrapped in your hand.
Though I'm thinking a simple perforated tube which sucks the air out would act as a vacuum.
Comments
My understanding is that they key components are the vacuum and the extreme cold. The vacuum allows a lot more heat to be transferred than there would be in anything held onto.
You're making the assumption that a vacuum can't be wrapped in your hand. Though I'm thinking a simple perforated tube which sucks the air out would act as a vacuum.