What Are Dewars?

A minimal jargon explanation, by Herr Direktor Funranium. Written while consuming a carbonated, no H2O Manhattan.  Standards of insobriety, with corresponding misspellings and grammatical errors, are being upheld. The stupid simple, “Go away, yer botherin’ me, boy” explanation of how a dewar works is that it’s like a really, really good scientific-grade Thermos(TM). The average …