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Vacuum siphons
Experiments have shown that siphons can operate in a vacuum, provided that the liquids are pure and degassed and surfaces are very clean.
[31][32][33]
[edit] Oxford English Dictionary
The
Oxford English Dictionary (OED) entry on
siphon, published in 1911, states that a siphon works by
atmospheric pressure. Stephen Hughes of
Queensland University of Technology criticised this in a 2010 article
[9] which was widely reported in the media.
[34][35][36][37] The OED editors stated, "there is continuing debate among scientists as to which view is correct. ... We would expect to reflect this debate in the fully updated entry for siphon, due to be published later this year."
[38] Dr. Hughes continued to defend his view of the siphon in a late September post at the Oxford blog.
[39]