Transcript Reading the smoke signals

What is Smoke?
Relative Sizes of Particles and Comparison of
Dimensional Units
1 micron is a millionth of a meter or 1 inch divided into
25,400 parts.
Substance
Micro-meters (microns)
Inch
90% of Wood smoke
particles are smaller than
1 micron
0.00004
Bacteria (average)
2
0.00008
Red Blood Cell
8
0.0003
Talcum Powder
10
0.0004
White Blood Cell
25
0.001
Human Hair
70
0.003
Grain of Table Salt
100
0.004
What's in Wood Smoke and Solid Fuel
Emissions?
• Particulates= PM10,
PM2.5, Nanoparticulate
• Carcinogens=Polycyclic
Aromatic Hydrocarbons
(PAH)
• Dioxin From Wood
Burning
"What does that mean?"
• There were walls of thick black and grey
smoke rising heavy black smoke discharging
from the air vent
• Black smoke hung over the street and could be
seen rising
• Medium smoke condition on stairs that is
venting out through a broken window
• “It’s Showing” I call into the crew area of the
engine, but think it’s probably a car alright by
the color and density of the smoke
"What does that mean?"
• Thick clouds of black oily smoke begin to
roll into the sky
• "It was massive billowing black smoke,
which is always a bad sign
Reading the smoke signals
Everyone knows what the white smoke means - the
white smoke means they picked a new pope. And
everyone knows what the black smoke means - the
black smoke means they didn't.
But is that all there is to it? White smoke or black
smoke in a full-color world? A simple "Yup" or
"Nope" at a moment so filled with nuance? There
must be more! - that's what I say. And now (will
miracles never cease?) there is more! Here, in case
you were wondering, is the enhanced and upgraded
smoke-signal collection no Vatican should be
without: