4 ms·
Is it true that there's no such thing as a perfect vacuum? How much 'stuff' is in vacuum on average to make it impure? Sorry if these are stupid questions.
by cevn 8y ago
Is it true that there's no such thing as a perfect vacuum? How much 'stuff' is in vacuum on average to make it impure? Sorry if these are stupid questions.
- NikolaeVarius 8y agohttp://adsabs.harvard.edu/abs/1968PASJ...20..230T http://adsabs.harvard.edu/abs/1968PASJ...20..230T A few atoms per cubic meter, but yeah, no real thing as a perfect vacuum.