When did Lucretius argue for the existence of vacuum?
Lucretius argued for the existence of vacuum in the first century BC. This argument was part of ancient Greek philosophical debates on atomism and void.
Questions about Vacuum
Short answers, pulled from the story.
Who invented the first laboratory vacuum in 1643?
Evangelista Torricelli produced the first laboratory vacuum in 1643. He created a Torricellian vacuum by filling a tall glass container with mercury and inverting it in a bowl to contain the mercury.
What is the definition of ultra-high vacuum according to ISO standards?
Ultra-high vacuum operates below one trillionth of atmospheric pressure reaching around 100 particles per cubic centimeter. ISO 3529-1:2019 defined ranges according to technology required to achieve or measure it.
How long can humans survive exposure to vacuum before losing consciousness?
Humans exposed to vacuum will lose consciousness after a few seconds and die of hypoxia within minutes. Animal experiments show rapid and complete recovery is normal for exposures shorter than 90 seconds.
Why does air expand to fill available space according to Al-Farabi?
Al-Farabi wrote a treatise rejecting the existence of the vacuum in the 10th century. He concluded that air's volume can expand to fill available space making the concept of a perfect vacuum incoherent.