How to visualize one part per million - Kim Preshoff + The TED-Ed Community
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0:07 - 0:10What does it mean to be one in a million?
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0:10 - 0:13Not in the greeting card sense,
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0:13 - 0:15in the scientific sense,
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0:15 - 0:18where one part per million
is a unit of measurement. -
0:18 - 0:22Parts per million counts the number
of units of one substance -
0:22 - 0:24per one million units of another.
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0:24 - 0:28It can measure concentrations when
a small amount makes a big difference. -
0:28 - 0:34For example, a concentration of just
35 ppm of carbon monoxide in the air -
0:34 - 0:36is poisonous to us.
-
0:36 - 0:39We encounter measurements like this
pretty often, -
0:39 - 0:42but because it's hard to conceptualize
really large numbers, -
0:42 - 0:47it's difficult to wrap our brain around
what one part per million really means. -
0:47 - 0:50So here are nine helpful ways
to visualize it. -
0:50 - 0:55If you had 11,363 pianos-worth
of piano keys, -
0:55 - 1:01one of those keys would be about
one part per million. -
1:01 - 1:06So would a single granule of sugar
among 273 sugar cubes, -
1:06 - 1:10one second in eleven and a half days,
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1:10 - 1:12or four dots in the painting,
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1:12 - 1:17"A Sunday Afternoon on
the Island of La Grande Jatte." -
1:17 - 1:21Your bath tub's capacity
is about 60 gallons, -
1:21 - 1:25so seven drops of ink would be
one part per million. -
1:25 - 1:32The English version of the Harry Potter
series has 1,084,170 words, -
1:32 - 1:37which makes "hippogriff" on page 221
of "The Prisoner of Azkaban" -
1:37 - 1:41a little less than one part per million.
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1:41 - 1:45A million kernels of corn
is about 1,250 ears, -
1:45 - 1:49so one kernel in that truckload
would be one part per million. -
1:49 - 1:53There are 10 million bricks in
the Empire State Building, -
1:53 - 1:57so one part per million
would be a pile of just ten. -
1:57 - 2:02And finally, 100 people worked together
to animate this video. -
2:02 - 2:06Collectively, they have about 10 million
hairs on their heads. -
2:06 - 2:11Pluck ten of those hairs,
and you have one in a million.
- Title:
- How to visualize one part per million - Kim Preshoff + The TED-Ed Community
- Description:
-
View full lesson: http://ed.ted.com/lessons/how-to-visualize-one-part-per-million-kim-preshoff-the-ted-ed-community
“Parts per million” is a scientific unit of measurement that counts the number of units of one substance per one million units of another. But because it’s hard to conceptualize really large numbers, it can be difficult to wrap our brains around what “one part per million” really means. Kim Preshoff (with help from 100+ animators from the TED-Ed Community) shares nine helpful ways to visualize it.
Lesson by Kim Preshoff, animation by TED-Ed Community.
- Video Language:
- English
- Team:
- closed TED
- Project:
- TED-Ed
- Duration:
- 02:28
Jessica Ruby approved English subtitles for How to visualize one part per million - Kim Preshoff + The TED-Ed Community | ||
Jessica Ruby accepted English subtitles for How to visualize one part per million - Kim Preshoff + The TED-Ed Community | ||
Jessica Ruby edited English subtitles for How to visualize one part per million - Kim Preshoff + The TED-Ed Community | ||
Jennifer Cody edited English subtitles for How to visualize one part per million - Kim Preshoff + The TED-Ed Community |