That means, on top of the soot there is a very thin
layer of air bubbles.
Not exact matches
Press top
layer of pasta over spoonsful
of squash mixture, making sure to press out
air bubbles.
Divide the batter between 8 popsicle molds, leaving a half inch at the top for the chocolate
layer later, and tapping the mold against the counter to get rid
of any
air bubbles.
You freeze the two flavors, one after the other (if possible), then alternately, put
layers of still - soft churned ice cream in a container (they don't need to be perfect; I just put big «blobs»
of ice cream and sorbet over each other), rapping it on the counter to loosen
air bubbles.
Drop a spoonful
of peanut butter on top
of the chocolate
layer and repeat process
of tapping mold until candy surface is flat and
air bubbles removed.
These
bubbles rise to the surface and burst through that
layer of organic material, catapulting the soil particles into the
air.
I sprayed the back
of each scrapbook letter with a light
layer of adhesive and placed the paper letters on the front
of my paper mache letters pushing everything down firmly to make sure there were no
air bubbles.
When the ice from a certain
layer is crushed — say, a
layer known to be 2,000 years old — tiny
bubbles of ancient
air are released, the composition
of which reflects the composition
of the atmosphere 2,000 years ago.
B) For the ice cores the progressive closing
of the diffusion paths between the surface and the «
air bubbles»
of a
layer of the firn is tantamount to a temporal low - pass filter which smoothes the transitions faster than several centuries (in Antarctica where the precipitation
of ice is a few mm / year, it's the time it takes for some 50 m
of water to accumulate).
The
layers are matched to calendar years using the telltale deposits
of known volcanic eruptions; and 3) connecting the ages
of the ice and the
air — i.e., the time difference between snow falling and
air bubbles getting enclosed — is a problem all
of its own.
The time that the pores are open at the Law Dome is ~ 40 years (40
layers of summer / winter snow) until where the closing
of the
air bubbles start.
CO2 Concentrations: record
of global CO2 concentration for the last 1000 years, derived from measurements
of CO2 concentration in
air bubbles in the
layered ice cores drilled in Antarctica (blue line) and from atmospheric measurements since 1957.