Jun 26, 2011 · A simple vacuum tube, a triode, with its heated cathode. Source. As expected with an insulator, electrons cannot move in vacuum, there is no electric current, the impatient electrons must stay on their wire! However, in a vacuum tube there is a way to transfer more energy to the heated electrons packed on the cathode.

Dec 13, 2011 · Electrical isolation amounts to using an air gap (or vacuum) as an insulating (nonconducting) medium; like most electrical insulators, air has a breakdown voltage, typically about 1000V/mm, while the breakdown voltage in partial vacuum may be substantially less.

Jun 23, 2020 · Do vacuum cleaners suck? Is water wet? Is the hypotenuse the longest side of a triangle? Does a bear live in the woods? I’ll answer you with my favorite ‘Y’ word—Yes! Is the sky blue? I totally ‘scored’ getting asked by you. Yes! How do you spell yes? Would you take ‘yes’ for an answer? I haven’t said no yet, right?

Sep 18, 2010 · I only relate my own experiences in the matter. Your observation that the objects a not necessarily unknown is valid, hence my frequent use of the weasel-word 'tends'. I agree with your observation about the vacuum cleaner, although I would tend to think in that case the use of "she" would tend to lean toward the pejorative. –

Jan 17, 2012 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Oct 13, 2021 · The essence of flying is that there is a gas present (usually, air) - you cannot fly in a vacuum. Air (uncountable) is therefore used in the achievement of flight. – Greybeard

Jul 5, 2011 · BCE/CE usually refers to the Common Era (the years are the same as AD/BC). That is, BC is usually understood to mean "Before the Common Era" and CE to mean "Common Era," though it is possible to reinterpret the abbreviations as "Christian Era."

A talent/knowledge vacuum is created as talent redundancy has been overlooked and nobody else knows how to do Sara's job, then that leg of the company experiences failure until a solution for Sara's absence is resolved.

Aug 13, 2014 · There’s always spontaneous generation, which sounds a bit wacky until someone starts chatting you up about vacuum energy with particle pairs blinking into existence and quickly annihilating each other back into the nothingness whence they came. Ok …