Curated category
Vacuum
- Vacuum tubeIn 1904, John Ambrose Fleming patented a device called the oscillation valve. This invention marked the birth of modern electronics by controlling electric…
- Outer spaceThe baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.725 kelvins. This near-perfect vacuum contains ultra-low…
- VacuumAncient Greek philosophers debated the existence of a vacuum, or void, in the context of atomism. Lucretius argued for the existence of vacuum in the first…