When
the bubbles reach the surface, the gas enters the atmosphere.
Not exact matches
Continue to simmer briskly, without stirring, until the sugar
reaches hardball stage (248 degrees F) and the
bubbles on the
surface begin to look evenly sized.
Once the
bubbles rise to the
surface and it has
reached a full boil, reduce heat to medium and boil for 5 minutes.
One of the key challenges around efficiency is that steam
bubbles can easily
reach and break the
surface, escaping to atmosphere.
When they
reach the
surface, the
bubbles form a ring, the so - called collerette, at the top of a filled flute.
The scariest parts of the Siberian margin are the shallow parts, because this is where methane
bubbles from the sea floor might
reach the
surface, and this is where the warming trend is observed most strongly.
I believe that reaction takes much longer than
bubbles require to
reach the
surface; the methane released in these
bubble sites or in rapid events like underwater landslides) either dissolves in water or
reaches the atmosphere in a matter of minutes, according to what was posted here earlier.
An analogy: imagine observing a pan of boiling water and trying to predict when and where a
bubble will form on the bottom of the water, how long it will take to
reach the
surface and how large it will be when it bursts.
Jason Box, a widely published climatologist, has been closely following the SWERUS - C3 expedition, and is concerned - based on observations - that some of these methane
bubbles are not being dissolved or consumed by microorganisms before
reaching the
surface.
Sometimes the methane in these
bubbles is absorbed by the water column and never
reaches the
surface.