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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
Note
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