fermi facts

how many galaxies

2 trillion / 2×10^12

how many stars per galaxy

100 billion / 1×10^11

Earth radius

4000 miles

Area of united states

4 million mi²

how many earths fit into the sun

1.3 million

how much water in lake erie

5×10^14 L / 1.3×10^14 gal

Mass of the sun

2×10^30 kg

sun radius

500,000 miles, d=1 million miles

H atoms in the sun

10^57

number of trees

3 trillion

Earth surface area

500 million km²

how many ants

2×10^16 / 20 quadrillion

how much water on earth

300 quintillion gal / 1.2 sextillion L

how much water in the great lakes

6 quadrillion gal / 23 quad L

how many cells in the human body

40 trillion / 4×10^13

how many red blood cells

25T / 2.5×10^13

how many white blood cells

50B / 5×10^10

Avogadro’s number

6×10^23

gross national debt

34T

GDP

23T

how big is a hectare

100x100m

how big is an acre

football field w/o end zones

mass of the earth

6×10^24

carbon atoms in the body

5×10^26

seconds in a year

3×10^7

mass of the moon

7×10^22 kg

grains of sand

8×10^21

Number of bacteria in the world

5×10^31

Gravitational constant

7×10^-11

Gravity equation

F=G(m1*m2)/r²

Kinetic Energy equation

KE=1/2mv²

Potential Energy equation

PE=m(9.8m/s²)h

how long is a light year

10^13 km

diameter of milky way

105,000 ly

diameter of solar system

7.5×10^9 mi

mass of supermassive black hole

10^37 kg

how much CO2 from 1 L of gas

2.3 kg

output of the sun

4×10^26

mitochondria in a cell

2000

escape velocity of earth

10000 m/s

log(2pi)

0.798

log(e)

0.434

log(golden ratio)

0.209

base pairs in human genome

3 billion

size of transistor

20 nm

black hole radius eq

2GM/c²

width of human hair

0.03 mm

Mass of electron

10^-30 kg