Welcome' to Loyola

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Welcome. to Loyola
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Power of Ten
http//microcosm.web.cern.ch/microcosm/P10/english
/P0.html
Our yardstick 1.0 meter
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10
10.0 meter
0.1 meter
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100
10-2 m ? 1.0 cm
102 meter Football field
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1000
A bird's eye view of the CERN site with the
Microcosm visitor center in the middle. 103 m ?
1.0 Km
The fly's eye is made of hundreds of tiny
facets, resembling a honeycomb 10-3 m ? 1.0 mm
How many such eyes can be fit in an area of the
size of CERN?
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Multiplication and division
If one side can hold ten Xs a square could fit
100.
101 ? 101 102
The area shown in previous slide could hold
106 ? 10-6 106 ? 106 1012 1 trillion eyes
http//www.miamisci.org/ph/lpextend1.html
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.1mm
10-4 m ? .1 mm The fly's eye is made of hundreds
of smaller eyes. Each facet is a small lens with
light sensitive cells underneath.This image was
taken using an electron microscope.
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104 m ? 10,000m
This image covers about the same area as CERN's
largest accelerator, LEP, the Large Electron
Positron collider.
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Multication and division
10a ? 10b 10ab   100 ? 1,000 1023
100,000 1,000 ? 1,000 1033 106 100 ? 100
1022 10,000
10a ? 10b 10a-b   100 ?100 102-2 100 1
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Continued
We have a box that has a cross-sectional area of
1m?1m and has a depth of one meter. If we want
to fill it up with water using a spoon that holds
1cc (?1cm?1cm?1cm), how many such spoons of
water will it hold?
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Continued
1m 100 cm
  1m2 10,000 cm2  
1m3 1,000,000 cm3  
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How many ccs in 1m3
Now let us try to answer how many spoons of
water would be contained in a 1m3-box.
To divide, 1m3 by 1cm3 , we would need to change
units
1m3 ? 1cm3 106 cm3 ? 1cm3 106
1m3 ? 1cm3 1m3 ? 10-6m3 106