which can’t really be classified as vacuum tubes since they’re filled with various gasses. Thyratrons are tubes that use ionized gas – mercury vapor in this case – to conduct large currents.

When we mention vacuum technology, it’s not impossible that many of you will instantly turn your minds to vacuum tubes ... of [Evangelista Torricelli] on mercury barometers in the 17th century ...

A vacuum tube is just that: a glass tube surrounding a vacuum (an area from which all gases have been removed). What makes it interesting is that when electrical contacts are put on the ends ...

Over 40 systems were sold. Comprising some 5,000 vacuum tubes and weighing nearly eight tons, the memory in the UNIVAC I was made of mercury-filled acoustic delay lines that held 1,000 12-digit ...

A light source consisting of a long glass tube containing mercury in a partial vacuum. Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the ...

through an inventive experiment with a lead tube and bucket of water, demonstrates how an air vacuum can be created. 1643: Evangelista Torricelli conducts Berti's experiment with mercury instead ...

The glass vacuum tube is lined with a significant amount ... However, LCDs still contains small amounts of lead as well as mercury in fluorescently-lit models. In addition to the chemicals ...

Summer bummer my babies — Mercury retrograde will continue to dominate the month of August. Mercury, trickster planet of the mind and the mouth, tech and travel, hot gossip and sexting ...

NASA's early space missions struggled with food storage and preservation, leading to the development of dried, vacuum-packed, ...

What is the best cordless vacuum? The technology inside cordless vacuums has come a long way over the years. They used to come with drawbacks, like limited battery life, weak suction power and so on.

And yes, these crisp yet creamy treats have been to space.

Expected drops in temperature and mating season mean the false widows will be coming inside - and pest experts warn people not to touch them ...