jerry fermi

connecticut surface area

1.4 * 10^4 km^2

log 2

0.301

log 3

0.477

log 7

0.845

log 11

1.0414

log 13

1.11

sterling's approximation

√(2nπ) * (n/e)^n

US Area

10^7 km^2

US perimeter

10^4 km

earth total land area

1.5*10^8 km^2

earth total water volume

10^21 L

earth surface area

5 * 10^8 km^2

earth mass

6 * 10^24 kg

mount everest height

9 * 10^3 m

mariana trench depth

10^4 m

dollar bill dimensions

6 cm by 16 cm by 0.11 mm

empire state building height

380 m (top floor), 440 m (w/spire)

pacific ocean volume

7 * 10^20 L

atlantic ocean volume

3*10^20 L

football field dimensions

50 m by 100 m

olympic pool dimensions

25 m by 50 m by 2m

average house size

2500 ft^2

penny dimensions

radius: 10 mm, width: 1.5 mm

penny weight

2.5 g

mass of electron

10^-27 g

mass of proton

10^-24 g

nile river length

6600 km

sahara desert surface area

10^7 km^2

acre

43560 ft^2

Boston to San Francisco

4000 km

grain of sand radius

0.25 mm

printer paper dimensions

8.5 in x 11 in x 0.1 mm

yocto

-24

zepto

-21

atto

-18

femto

-15

pico

-12

nano

-9

micro

-6

milli

-3

centi

-2

deci

-1

deka

1

hecto

2

kilo

3

mega

6

giga

9

tera

12

peta

15

exa

18

zetta

21

yotta

24

US GDP

23 trillion dollars

1 N

0.225 lbs

tallest tree (hyperion)

380 ft / 115m

oldest tree (methuselah tree)

5000 years

furlong

1/8 of mile

probability of lightning strike in lifetime

1/(1.5*10^4)

probability of lightning strike in year

1/(1.2*10^6)

FM Radio waves

3 m

visible light

400 - 700 nm

kilowatt-hour

3.6 * 10^6 J

watt-second

1 J

electric potential

energy stored in electric fields; amount of electric potential energy divided by the amount of charge

1 horsepower

750 watts

house kWh per day

30 kWh

area of boston

200 km^2

grain of sand mass

7*10^-4 g

heat capacity of water

4.184 J/(g C)

words in the english language

10^5

observable universe radius

4*10^23 km

radius of the sun

7*10^5 km

mass of the sun

2 * 10^30 kg

hiroshima energy

6 * 10^13 J

one gallon of gasoline

30 kWH

AA battery voltage

1.5 V

1 troy ounce

approx 1 ounce

fortnight

14 days

1 olympiad

4 years

svedbergs

10^-13 seconds

planck length

1.6*10^-35 m

galatic year

230 million years; time it takes sun to orbit the milky way galaxy

lake superior volume

10^16 L

us population

300 million

massachusetts area

2.7 * 10^4 km^2

diameter of nucleus of hydrogen atom

1.7*10^-15 m

diameter of nucleus of uranium

11.7 * 10^-15 m

diameter of hydrogen atom

100 pm \= 1 Angstrom

ampere

one coulomb worth of charge per second

Coulomb

6.24*10^18 electrons worth of charge

diameter of uranium atom

280 pm

number of grain of sands on earth

7.5*10^18 grains

grain of sand volume

6*10^-11 m^3

average gamma ray wavelength

10^-12 m

sunlight uv wavelength

100-400 nm

X-ray wavelength

10^-9 m

microwave oven wavelength

0.1 m

infrared wavelength

10^-6 m

planck time

\# of seconds it takes light to travel one Planck length

sun energy emission

4*10^26 watts