Fermi Questions

3x10^8

Speed of light

1x10^16

Light year

1.5x10^11

Distance from earth to sun

4x10^8

Distance from earth to moon

2x10^20

Distance from earth to Milky Way

4x10^-7

Wavelength of violet light

7x10^-7

Wavelength of red light

1x10^-9

Wavelength of X-ray

1x10^-2

Wavelength of microwave

3x10^16

Parsec

5x10^-5

Width of a human hair

3x10^7

Seconds in a year

1.6x10^3

Meters in a mile

4x10^3

Square meters in an acre

7.5x10^2

Watts in a horsepower

4.4

Newtons in a pound

7x10

Decibels of a normal conversation

1.9x10^2

Decibels of a whale

8.9x10^3

Height of Mt. Everest

2.5x10^-10

Average diameter of an atom

5x10^-7

Average diameter of an animal cell

1.4x10^10

Age of the universe in years

4.5x10^9

Age of the earth in years

1x10^14

Cells in the human body

1.3x10^4

Number of McDonalds in the U.S.

1.3x10^8

Energy in a gallon of gasoline

1.7x10^-27

Mass of one amu

1.4x10^17

Half-life of Uranium-238

1.8x10^11

Half-life of Carbon-14

1

Density of butter in g/mL

2.3x10

Density of osmium in g/mL

9.7x10^4

Faraday's constant (coulombs/ mol e^-)

4.2x10^12

Volume of the Grand Canyon

7x10^2

Average number of words that can fit on an 8 1/2 x 11 sheet (size 12, Times New Roman)

1.4x10^31

Energy produced by the sun in an hour

8.1x10^3

Depth of the Mariana Trench

9.3x10

Height of Statue of Liberty

6x10^10

Average number of cells in the body that go through apoptosis in a day