coldbabe💙4d ago
Compound Interest

Happy #StPatricksDay! ☘️

If you’ve ever wondered why the bubbles in Guinness appear to fall instead on rising, or what gives the beer its dark colour, check out this edition of #PeriodicGraphics in C&EN: https://cen.acs.org/articles/93/i11/Periodic-Graphics-Chemistry-Pint-Guinness.html

Mar 17 at 12:29pmWeb
Show threadMorten4d ago
@compoundchem Humulone is derived either from the Latin name, Humulus lupulus, or Nordic name, humle or variations thereof, for hops.
Show thread♿ 🏳️‍🌈 La pantera roja4d ago
So it's not Frobscottle? What a deception.
Show threadDonald R Noble4d ago
@compoundchem I think this is based on this research paper https://pubs.aip.org/aapt/ajp/article-abstract/81/2/88/1057987/Why-do-bubbles-in-Guinness-sink
Show threadRay McCarthy4d ago

@compoundchem
The draught Guinness (nitrogen) is a 1950s innovation.
Nor did Guinness invent stout, which is black even in the non-nitrogen traditional bottled version. Stout is mentioned in 1677. Guinness started in 1759.
The nitrogen gives the creamy head on the draught and more recent "simulated" canned draught versions.
Guinness moved HQ to London in 1932 and is not an Irish company.

Also nothing to do with St. Patrick, but then neither have snakes or shamrocks (both late folk myth).

Show threadPetra van Cronenburg4d ago
@compoundchem Works for Alsatian beer, too. 😁
Show threadGentleMan Gef4d ago
@compoundchem