Oil Monolayer Experiment

Discussions center on using various oils such as vegetable, olive, sunflower, or mineral oil for the classic physics demonstration where oil spreads into a single-molecule-thick film on water to measure molecular size. Debates include which oils work best, historical uses, rancidity concerns, and alternatives like animal fats.

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Keywords

COOH IMO WD40 oil mineral vegetable acid oils water bread fat molecules butter

Sample Comments

Raphmedia • Nov 19, 2014 • View on HN

Wouldn't it work better with oil and also be easier?

chopsueyar • Oct 16, 2010 • View on HN

Guess we'll have to use vegetable oil.

darknavi • Feb 24, 2022 • View on HN

Perhaps "vegetable oil"?

Volpe • Jan 31, 2013 • View on HN

because people have olive oil already...

err4nt • Jan 7, 2023 • View on HN

You can use oil - that works too!

xhkkffbf • Aug 8, 2022 • View on HN

What kind of oil did they used to use?

justinclift • Feb 2, 2023 • View on HN

Wonder if it'll degrade to something oil like? :)

TremendousJudge • Nov 14, 2018 • View on HN

>vegetable oilbut what if it's just regular sunflower oil or something of the sort?

Zigurd • Sep 12, 2022 • View on HN

Food. But yeah, the oil thing is enough.

tonyedgecombe • May 4, 2017 • View on HN

Which is probably a better use of oil than burning it.