accelerationa,
angular‑velocityω,
areaA,
densityρ,
dimensionD,
electric‑currentI,
electric‑fieldE,
electric‑voltageV,
electrical‑resistivityρ,
energyE,
forceF,
frequencyƒ,
frictionµ,
lengthℓ,
magnetic‑fieldB,
massm,
money$,
number#,
powerP,
pressurep,
refractionn,
restitutioncor,
temperatureT,
timet,
velocityv,
volumeV

* entries marked with an asterisk include editor's commentary

## Acceleration (Acceleration Due To Gravity)

- Acceleration perturbations of daily living
- More acceleration perturbations of daily living
- Acceleration of a car
- Acceleration of a dragster
- Acceleration of an elevator, cable
- Acceleration of an elevator, hydraulic
- Acceleration of a roller coaster
- Acceleration of a manned rocket*
- Acceleration of blackout in fighter pilots*
- Acceleration in a training centrifuge
- Acceleration of a medical centrifuge
- Acceleration that would deploy car airbags
- Acceleration that would break human bones
- Acceleration that would kill a human
- Acceleration of a cannonball
- Acceleration of a bullet
- Acceleration due to gravity at New York City
- Acceleration due to gravity at Quito, Ecuador
- Acceleration due to gravity on the moon
- Acceleration due to gravity on Mars
- Acceleration due to gravity: Super Mario Brothers

## Angular Velocity (Angular Speed)☝

- Angular speed of the earth
- Angular speed of a phonograph record*
- Angular speed of a floppy disk
- Angular speed of a hard disk drive
- Angular speed of a CD
- Angular speed of a DVD
- Angular speed of a car engine
- Angular speed of a truck engine
- Angular speed of a jet turbine
- Angular speed of a training centrifuge
- Angular speed of a medical centrifuge
- Angular speed of a kitchen blender

## Area (Surface Area)☝

- Area of a ping pong paddle
- Area of a badminton racket
- Area of a tennis racket
- Area of a ping pong table
- Area of a tennis court
- Area of a basketball court
- Area of a football field (soccer pitch)
- Area of a football field (American)
- Area of a football field (Canadian)
- Area of a baseball field
- Area of a newspaper
- Area of Manhattan
- Area of Brooklyn
- Area of New York City
- Area of New York State
- Area of the polar ice caps
- Area of earth's land surface
- Area of earth's oceans
- Surface area of human skin

## Density (Specific Gravity)☝

- Density of the universe
- Density of outer space*
- Density of the solar wind
- Density of the best laboratory vacuum
- Density of air*
- Density of ice
- Density of water
- Density of steam
- Density of sea water
- Density of blood
- Density of milk
- Density of beer*
- Density of cooking oil
- Density of petroleum
- Density of soap
- Density of bone
- Density of wood
- Density of a Space Shuttle tile
- Density of concrete*
- Density of glass
- Density of steel
- Density of gold
- Density of platinum
- Density of plutonium*
- Density of uranium
- Density of osmium
- Density of the earth
- Density of Saturn
- Density of the sun
- Density of a white dwarf star
- Density of a neutron star

## Dimension (Fractal Dimension)☝

- Fractal dimension of bread
- Fractal dimension of broccoli
- Fractal dimension of the coast of Maine
- Fractal dimension of leaves
- Fractal dimension of stock price changes

## Electric Current☝

- Electric current from a 1.5 V battery
- Electric current from a car battery
- Electric current through a microwave oven
- Electric current through a refrigerator
- Electric current through an air conditioner
- Electric current through an electric stove
- Electric current through a home
- Electric current through an arc welder [not MIG or TIG]
- Electric current through a MIG welder
- Electric current through a TIG welder
- Electric current through an arc furnace
- Electric current from an electric eel
- Electric current of a stun gun
- Electric current used in electroshock therapy
- Electric current needed to kill a human
- Electric current through an electric chair*
- Electric current through a lightning bolt
- Electric current through the atmosphere

## Electric Field (Dielectric Strength)☝

- Dielectric strength of air
- Dielectric strength of glass, crown
- Dielectric strength of glass, pyrex (borosilicate glass)
- Dielectric strength of mica
- Dielectric strength of silicone
- Dielectric strength of transformer oil
- Dielectric strength of paper
- Dielectric strength of polyethylene
- Dielectric strength of polypropylene
- Dielectric strength of fused quartz
- Dielectric strength of waxed paper
- Dielectric strength of air
- Electric field inside a typical US home
- Electric field near a cellular telephone
- Electric field on earth*
- Electric field on the sun

## Electric Potential (Electromotive Force, Potential Difference, Voltage)☝

- Voltage of an alkaline battery
- Voltage of a nickel metal hydride battery
- Voltage of a nickel cadmium battery
- Voltage of a car battery
- Voltage of a truck battery
- Voltage of household electrical outlets
- Voltage of a fluorescent tube
- Voltage of a neon light
- Voltage of a mercury light
- Voltage of a sodium vapor light
- Voltage of a television picture tube
- Voltage of automobile spark plugs
- Voltage of an electric eel
- Voltage of an electric fence
- Voltage of an electron microscope
- Voltage of a nerve cell
- Voltage of a stun gun
- Voltage of electroshock therapy
- Voltage used to resuscitate a human heart
- Voltage of an electric chair*
- Voltage of power transmission lines
- Voltage of a lightning bolt

## Electrical Resistivity (Reciprocal of Electrical Conductivity)☝

- Resistivity of aluminum
- Resistivity of aluminum oxide
- Resistivity of carbon, amorphous
- Resistivity of carbon, diamond
- Resistivity of carbon, graphite
- Resistivity of copper
- Resistivity of glass
- Resistivity of germanium
- Resistivity of gold
- Resistivity of iron
- Resistivity of mercury
- Resistivity of mica
- Resistivity of nichrome
- Resistivity of quartz
- Resistivity of silicon
- Resistivity of silver
- Resistivity of steel
- Resistivity of tungsten
- Resistivity of water, distilled
- Resistivity of water, seawater
- Resistance of a resistor: Blame the students or blame the resistors?

## Energy (Energy Density)☝

- Energy in ATP
- Energy of the most extreme cosmic rays
- Energy of the most extreme gamma rays
- Energy consumption of a human
- Energy of a 1.5 V battery
- Energy of a car battery
- Energy of a truck battery
- Energy in a cubic meter of natural gas
- Energy in a barrel of petroleum
- Energy in a ton of coal
- Energy in a ton of TNT
- Energy of a nuclear explosion*
- Energy consumption of New York City
- Energy consumption of China
- Energy consumption of the United States
- Energy consumption of Africa
- Energy consumption of Asia
- Energy consumption of Australia
- Energy consumption of Europe
- Energy consumption of North America
- Energy consumption of South America
- Energy consumption of the earth
- Energy density of hydrogen
- Energy density of methane
- Energy density of propane
- Energy density of butane
- Energy density of gasoline
- Energy density of kerosene
- Energy density of aviation fuel
- Energy density of diesel fuel
- Energy density of heating oil
- Energy density of methanol (wood alcohol)
- Energy density of ethanol
- Energy density of petroleum
- Energy density of natural gas
- Energy density of wood
- Energy density of coal
- Energy density of carbohydrates
- Energy density of fats
- Energy density of protein

## Force (Tension, Thrust, Weight)☝

- Force on a microelectromechanical system (MEMS)
- Force of a windmill slam dunk: Vince Carter
- Force of a windmill slam dunk: Dominique Wilkins
- Force on a runner's foot
- Force of a bat on a baseball
- Force of a tennis racket on a tennis ball
- Force of a golf club on a golf ball
- Force of a superhero: Superman Returns
- Tension of power transmission (high tension) lines
- Tension in Spider-Man's webs
- Things that weigh a newton
- Thrust of a jet engine
- Thrust of a space shuttle
- Weight of an apple

## Friction (Coefficient of Friction)☝

- Coefficients of friction for aluminum
- Coefficients of friction for concrete
- Coefficients of friction for glass
- Coefficients of friction for graphite
- Coefficients of friction for granite
- Coefficients of friction for human joints
- Coefficients of friction for human skin
- Coefficient of friction for skin: The Incredible Hulk
- Coefficients of friction for ice
- Coefficients of friction for paper
- Coefficients of friction for rubber
- Coefficients of friction for snow
- Coefficients of friction for steel
- Coefficients of friction for teflon
- Coefficients of friction for wood

## Frequency☝

- Frequency of middle C
- Frequency of a beating heart
- Frequency of brain waves
- Frequency of bee wings
- Frequency of fly wings
- Frequency of mosquito wings
- Frequency of hummingbird wings
- Frequency of a cat's purr
- Frequency of dolphin sonar
- Frequency of bat sonar
- Frequency range of human hearing
- Frequency range of dog hearing
- Frequency used in ultrasonic cleaning
- Frequency used in ultrasonic imaging*
- Frequency used in navigational sonar
- Frequency of ELF transmissions
- Frequency of cosmic microwave background
- Frequency of a microwave oven*
- Frequency of a police radar gun
- Frequency of the lowest electromagnetic waves
- Frequency of the highest electromagnetic waves

## Length (Altitude, Center of Mass, Depth, Diameter, Distance, Focal Length, Height, Range, Resolution, Size, Thickness, Wavelength)☝

- Altitude of highest permanent human habitation
- Altitude of human survivability, maximum [vertical limit]
- Altitude of the lowest point on earth
- Altitude of the highest point on earth
- Altitude of the lowest point on Mars
- Altitude of the highest point on Mars
- Altitude of the lowest parachute jump
- Altitude of the highest parachute jump*
- Altitude of a commercial jet airplane
- Altitude of a spy plane
- Altitude of the highest airplane flight*
- Altitude of the highest toy balloon flight
- Altitude of the highest manned balloon flight*
- Altitude of the highest unmanned balloon flight
- Altitude of the ozone layer
- Altitude of the space shuttle
- Altitude of a geosynchronous or geostationary satellite
- Center of mass of a human
- Depth of the Grand Canyon
- Depth of Valles Marineris
- Depth of the deepest mine
- Depth of the deepest drilling
- Depth of the deepest dive without breathing apparatus
- Depth of the deepest dive with breathing apparatus
- Depth of the deepest dive in a submarine
- Depth of the deepest dive in a bathyscaphe
- Depth of the ocean
- Depth of the deepest point in the ocean
- Diameter of an electron
- Diameter of a proton
- Diameter of an atom
- Diameter of a virus*
- Diameter of a bacterium*
- Diameter of a yeast
- Diameter of a protozoan
- Diameter of an optical fiber
- Diameter of a human hair*
- Diameter of a human eye
- Diameter of a snowflake
- Diameter of a raindrop*
- Diameter of a hailstone
- Diameter of a speck of dust
- Diameter of a grain of sand
- Diameter of a golf ball
- Diameter of a tennis ball
- Diameter of a baseball
- Diameter of a softball
- Diameter of a bowling ball
- Diameter of a football (soccer ball)
- Diameter of a basketball
- Diameter of a cannonball
- Diameter of an igloo
- Diameter of Pluto
- Diameter of earth
- Diameter of the earth's orbit
- Diameter of the moon
- Diameter of the moon's orbit
- Diameter of the sun
- Diameter of the solar system
- Diameter of the Milky Way
- Diameter of the known universe*
- Distance between carbon atoms
- Distance of the longest putted golf ball
- Distance of the longest driven golf ball*
- Distance of the longest batted baseball
- Distance of the farthest animal migration
- Distance to the nearest star
- Distance to the nearest galaxy*
- Distance to the most distant observed object*
- Focal length of a human eye*
- Focal length of eyeglasses
- Focal length of a magnifying glass
- Focal length of a camera lens
- Focal length of binoculars
- Focal length of an astronomical telescope
- Height of a newborn baby
- Height of an adult human
- Height of the tallest tree
- Height of a pop fly
- Height of a domed stadium
- Height of the Great Pyramid
- Height of the tallest building*
- Height of the tallest mountain on earth*
- Height of the tallest mountain on Mars
- Length of a human DNA molecule*
- Length of a human esophagus
- Length of a human intestine
- Length of the human alimentary canal
- Length of a lacrosse stick
- Length of a baseball bat
- Length of a golf club
- Length of a hockey stick
- Length of a javelin
- Length of a fishing rod
- Length of a bowling alley
- Length of a football field (American)
- Length of a football field (Canadian)
- Length of a football field (soccer pitch)
- Length of high voltage electric power transmission lines
- Length of submarine telecommunications cables
- Range of a shotgun pellet
- Range of a handgun bullet*
- Range of a rifle bullet
- Range of an artillery shell
- Range of a Scud missile
- Range of a cruise missile
- Range of a ballistic missile
- Resolution of an electron microscope*
- Resolution of an optical microscope
- Resolution of a spy satellite
- Separation between tracks on a CD
- Separation between tracks on a DVD
- Size of a human: Body proportions
- Size of a shoe: More body proportions
- Thickness of a cell membrane
- Thickness of a cell wall
- Thickness of gold leaf
- Thickness of a piece of paper
- Thickness of a leaf
- Thickness of a dollar bill
- Thickness of Arctic ice
- Thickness of the Greenland ice cap
- Thickness of the Antarctic ice cap
- Thickness of the ozone layer
- Thickness of earth's atmosphere
- Thickness of Saturn's rings
- Wavelength of the shortest electromagnetic waves
- Wavelength of the longest electromagnetic waves
- Wavelength of the sun's peak radiation output
- Wavelength of maximum human visual sensitivity
- Wavelength range of visible light

## Magnetic Field (Magnetic Flux Density, Magnetic Induction)☝

- Magnetic field on earth
- Magnetic field on Jupiter
- Magnetic field of the Milky Way
- Magnetic field inside a typical US home
- Magnetic field of a MetroCard
- Magnetic field near a cellular telephone
- Magnetic field of a soft iron magnet
- Magnetic field inside a TV picture tube
- Magnetic field of a lifting electromagnet
- Magnetic field inside an MRI*
- Magnetic field of the strongest magnet*

## Mass☝

- Mass of the heaviest man-made element*
- Mass of a snowflake
- Mass of a raindrop
- Mass of a hailstone
- Mass of a golf ball
- Mass of a handball
- Mass of a tennis ball
- Mass of a billiard ball
- Mass of a baseball
- Mass of a softball
- Mass of a dodge ball
- Mass of a football (American)
- Mass of a football (soccer ball)
- Mass of a bowling ball
- Mass of a grain of sand
- Mass of a bullet
- Mass of a cannonball
- Mass of a chemical bomb
- Mass of a nuclear bomb or warhead
- Mass of a penny
- Mass of a physics textbook
- Mass of a car
- Mass of a train
- Mass of an airplane, general aviation
- Mass of an airplane, commercial aviation
- Mass of a space shuttle
- Mass of the World Trade Center
- Mass of a virus
- Mass of a bacterium
- Mass of a dog
- Mass of an elephant
- Mass of a whale
- Mass of a human head
- Mass of a human brain
- Mass of a human heart
- Mass of a human liver
- Mass of a newborn baby
- Mass of an adult
- Mass of all the people on earth
- Mass of US rice production
- Mass of US corn production
- Mass of US wheat production
- Mass of US potato production
- Mass of US heroin consumption
- Mass of US cocaine consumption
- Mass of US marijuana production
- Mass of US marijuana consumption
- Mass of US breakfast cereal consumption
- Mass of US salsa consumption
- Mass of US ketchup consumption
- Mass of US beef production
- Mass of US beef consumption
- Mass of trash produced by New York City
- Mass of the atmosphere
- Mass of the biosphere
- Mass of the oceans
- Mass of the earth
- Mass of the moon
- Mass of Jupiter
- Mass of Pluto
- Mass needed to create a star
- Mass of the sun
- Mass needed to create a neutron star*
- Mass needed to create a black hole
- Mass of the Milky Way
- Mass of the universe

## Money (Cost, Earnings, Income, Price, Salary, Worth)☝

- Cost of living in New York City
- Cost of living in the US
- Cost of living for the average person on earth
- Income of the average New Yorker
- Income of the average American
- Income of the average person on earth
- Price of liquid helium
- Price of liquid nitrogen
- Price of water
- Price of petroleum (crude oil)
- Price of diesel fuel
- Price of gasoline
- Price of kerosene
- Price of propane
- Price of natural gas
- Price of coal
- Price of ethanol (grain alcohol)
- Price of electric energy
- Price of concrete
- Price of steel
- Price of diamond
- Price of copper
- Price of silver
- Price of gold
- Price of platinum
- Price of plutonium
- Price of uranium
- Price of a high school education
- Price of a college education
- Salary of a professor
- Salary of a teacher
- Salary of a doctor
- Salary of an engineer
- Salary of a biologist
- Salary of a chemist
- Salary of a geologist
- Salary of a meteorologist
- Salary of a physicist
- Salary of a baseball player
- Salary of a basketball player
- Salary of a football player (American)
- Salary of a football player (Canadian)
- Salary of a football player (soccer)
- Salary of a hockey player
- Worth of the average person in New York City
- Worth of the average person in the US
- Worth of the average person on earth
- Worth of the wealthiest person in New York City
- Worth of the wealthiest person in the US
- Worth of the wealthiest person on earth

## Number (Population)☝

- Number of colors distinguishable by the human eye
- Number of frequencies distinguishable by the human ear
- Number of neurons in a human brain
- Number of hairs on a human head
- Number of transistors on an integrated circuit
- Number of pages in a science review book
- Number of pages in a physics textbook
- Number of books published
- Number of web pages
- Number of nuclear weapons capable nations
- Number of nuclear warheads*
- Number of artificial satellites
- Number of cars*
- Number of personal computers in the US
- Number of televisions in the US
- Number of telephones [US, other country or region, or world]
- Number of cellular phones in the US
- Number of crimes in New York City
- Number of crimes in New York State
- Number of crimes in the US
- Number of people in a family
- Number of billionaires
- Number of people living in poverty
- Number of people in New York City
- Number of people in the US
- Number of people on earth
- Number of births in New York City
- Number of births in the US
- Number of births on earth
- Number of deaths in New York City
- Number of deaths in the US
- Number of deaths on earth
- Number of obese people in the US
- Number of rats in New York City*
- Number of pigeons in New York City
- Number of ants in the world
- Number of cockroaches
- Number of beetles
- Number of orchids
- Number of species
- Number of planets
- Number of asteroids
- Number of comets
- Number of extrasolar planets
- Number of stars in the Milky Way
- Number of galaxies in the universe
- Number of words in the English language
- Number of languages on earth

## Power (Power Density)☝

- Power of a human brain
- Power of a human heart
- Power of human lungs
- Power of a human
- Power of a mutant: Storm from X-Men
- Power of a horse [but, not just the definition of the unit horsepower]
- Power of a 1.5 V battery
- Power of a personal stereo
- Power of a car stereo
- Power of a home stereo
- Power of a toaster
- Power of a microwave oven
- Power of an electric oven
- Power of a refrigerator
- Power of an air conditioner
- Power of a car battery
- Power of a car
- Power of a truck
- Power of a train*
- Power of a cruise ship
- Power of an aircraft carrier
- Power of a fighter plane
- Power of a space shuttle
- Power of the first laser
- Power of a barcode reader laser
- Power of a laser pointer
- Power of the strongest laser*
- Power of car headlights
- Power of a streetlight
- Power of a searchlight
- Power of a lighthouse
- Power of a cell phone transmitter
- Power of a cell site transmitter
- Power of a radio/television broadcast transmitter
- Power of a commercial power plant
- Power of a nuclear reactor
- Power consumption of a home
- Power consumption of New York City
- Power consumption of New York State
- Power consumption of the United States
- Power consumption of China
- Power consumption of Africa
- Power consumption of Asia
- Power consumption of Australia
- Power consumption of Europe
- Power consumption of North America
- Power consumption of South America
- Power consumption of the earth
- Power of the sun*
- Power of a quasar
- Power density of solar radiation

## Pressure (Compression Strength)☝

- Compression strength of bone and brick: Sin City
- Compression strength of bone
- Compression strength of brick
- Compression strength of concrete
- Compression strength of granite
- Compression strength of marble
- Compression strength of plaster (blue board, drywall, gypsum board, etc.)
- Compression strength of porcelain
- Compression strength of steel
- Compression strength of wood
- Pressure in outer space*
- Pressure of the best laboratory vacuum
- Pressure of the threshold of human hearing
- Pressure to rupture an eardrum
- Pressure in a human eye
- Pressure in the human circulatory system (blood pressure)*
- Pressure in the human circulatory system: Is gender a factor?
- Pressure in human lungs
- Pressure on earth, highest
- Pressure on earth, lowest
- Pressure on the surface of Venus
- Pressure on the surface of Mars
- Pressure on the surface of Titan
- Pressure in a basketball
- Pressure in a bicycle tire
- Pressure in a car tire
- Pressure in a truck tire
- Pressure in a tractor tire
- Pressure in a can of soda
- Pressure in a champagne bottle
- Pressure in a pressure cooker
- Pressure in an espresso machine
- Pressure used to manufacture puffed cereal
- Pressure in a fire extinguisher
- Pressure under high heels
- Pressure at the deepest point in the Great Lakes
- Pressure at the deepest point in the oceans
- Pressure under the Antarctic ice cap
- Pressure used to create artificial diamonds
- Pressure of the most extreme laboratory experiment
- Pressure at the center of the earth*
- Pressure at the center of Jupiter
- Pressure at the center of the sun

## Refraction (Index of Refraction, Refractive Index)☝

- Index of refraction of air
- Index of refraction of diamond
- Index of refraction of ethanol [ethyl alcohol]
- Index of refraction of glass, crown
- Index of refraction of glass, flint
- Index of refraction of glycerol
- Index of refraction of Lucite
- Index of refraction of quartz
- Index of refraction of ruby and sapphire
- Index of refraction of sodium chloride (table salt)
- Index of refraction of vegetable oil
- Index of refraction of water
- Index of refraction of ice
- Index of refraction of cubic zirconia
- Index of refraction of various household liquids: glycerin, floor cleaner, degreaser, shower gel, baby wash
- Index of refraction of various household liquids: vinegar, honey, floor cleaner, throat medicine, foot wash

## Restitution (Coefficient of Restitution)☝

- Coefficients of restitution

## Temperature☝

- Temperature of the coldest laboratory experiment
- Temperature of the hottest laboratory experiment*
- Temperature on earth
- Temperature on earth, coldest*
- Temperature on earth, hottest*
- Temperature of the ocean
- Temperature of a healthy human (body temperature)*
- Temperature of a healthy human (skin temperature)
- Temperature of a healthy cow
- Temperature of a healthy dog
- Temperature of an American bath
- Temperature of a Japanese bath (お風呂)
- Temperature of a sauna
- Temperature at which coffee is brewed
- Temperature at which tea is brewed, 茶酿造的温度
- Temperature at which beer is brewed
- Temperature at which beer is fermented
- Temperature of steam in an espresso machine
- Temperature at which beef is cooked
- Temperature at which chicken is cooked
- Temperature at which fish is cooked
- Temperature at which lamb is cooked
- Temperature at which pork is cooked
- Temperature of steam used for heating
- Temperature of steam in a turbine
- Temperature of a home oven
- Temperature of a pizza oven*
- Temperature of a soldering iron*
- Temperature of an arc welder [not a MIG or TIG]
- Temperature of a MIG welder
- Temperature of a TIG welder
- Temperature of an oxyacetylene torch
- Temperature of a blast furnace
- Temperature of an arc furnace
- Temperature of a "red hot" object
- Temperature of a "white hot" object
- Temperature at the center of the earth
- Temperature of a candle flame
- Temperature of a blue flame*
- Temperature of an incandescent light bulb*
- Temperature of a halogen light bulb
- Temperature of a lightning bolt*
- Temperature of a nuclear explosion*
- Temperature of the cosmic microwave background radiation*
- Temperature on the surface of Mercury*
- Temperature on the surface of Venus*
- Temperature on the surface of Mars*
- Temperature on the surface of Pluto
- Temperature on the surface of the sun
- Temperature at the center of the sun
- Temperature of the hottest star*
- Temperature of the sun's corona
- Curie temperature of iron
- Curie temperature of cobalt
- Curie temperature of nickel
- Curie temperature of gadolinium
- Highest critical temperature superconductor
- Ignition temperature of paper
- Ignition temperature of gasoline
- Ignition temperature of diesel fuel
- Melting point of butter
- Melting point of cocoa butter
- Melting point of glass

## Time (Age, Duration, Half‑life, Period)☝

- Age of Homo sapiens
- Age of life on earth
- Age of the earth
- Age of the universe*
- Duration of the shortest laser pulse
- Duration of a sound bite
- Duration of the longest space flight
- Fingertip reaction time
- Half‑life of carbon‑14
- Half‑life of plutonium‑239
- How long do the subway doors stay open?
- Period between heartbeats
- Period of the human menstrual cycle
- Period of a pulsar
- Period of rotation of the earth
- Period of the moon's orbit
- Period of rotation of the sun
- Period of rotation of Venus
- Period of rotation of Pluto
- Period of the earth's orbit
- Period of the sun's orbit around the galaxy (cosmic year)
- Time spent driving to work
- Time spent at work
- Time spent sleeping

## Velocity (Speed)☝

- Speed of a bacterium
- Speed of a protozoan
- Speed of a sperm cell*
- Speed of a snail*
- Speed of a sloth*
- Speed of a tortoise or turtle*
- Speed of a rabbit or hare
- Speed of a tuna
- Speed of a shark
- Speed of a dolphin
- Speed of a whale
- Speed of a cheetah*
- Speed of the fastest dog
- Speed of the fastest horse
- Speed of the fastest bird
- Speed of a Screaming Slingshot Monkey
- Speed of a human running: Is footwear a factor?
- Speed of a Retired Basketball Player: Charles Barkley and Dick Bavetta
- Speed of a football player: Madden NFL 2006
- Speed of superhero: Smallville
- Speed of the fastest human, swimming*
- Speed of the fastest human, walking
- Speed of the fastest human, running*
- Speed of the fastest human, skating*
- Speed of the fastest human, cycling
- Speed of the fastest human, sledding
- Speed of the fastest human, skiing
- Speed of the fastest pitched baseball*
- Speed of the fastest pitched softball
- Speed of the fastest served tennis ball
- Speed of the fastest jai alai ball
- Speed of a dodge ball
- Speed of a golf ball
- Speed of a rogue bludger: Harry Potter
- Speed of a bowling ball
- Speed of the fastest badminton shuttlecock
- Speed of a spear: Troy
- Speed of a skydiver (terminal velocity)*
- Speed of the continental plates*
- Speed of seismic waves
- Speed of a tsunami
- Speed of a river
- Speed of ocean currents
- Speed of a falling snowflake
- Speed of a falling raindrop
- Speed of a falling hailstone
- Speed of falling Saruman: Lord of the Rings
- Speed of the winds in a hurricane
- Speed of the winds in a tornado
- Speed of nerve impulses
- Speed of sound in air
- Speed of sound in water
- Speed of sound through the earth
- Speed of video tape
- Speed of audio tape
- Speed of a phonograph record
- Speed of a CD
- Speed of a DVD
- Speed of a subway
- Speed of a subway: Batman Begins
- Speed of a commercial jet airplane
- Speed of a torpedo*
- Speed of a BB
- Speed of a paintball
- Speed of a bullet
- Speed of a cannonball
- Speed of an artillery shell
- Speed of a missile
- Speed of the fastest ship*
- Speed of the fastest train*
- Speed of the fastest motorcycle
- Speed of the fastest street legal car*
- Speed of a stock car
- Speed of a formula one car
- Speed of a dragster or funny car
- Speed of the fastest experimental car
- Speed of the fastest airplane*
- Speed needed to escape the earth (escape velocity)
- Speed of a space shuttle
- Speed of the Voyager space probes*
- Speed of the earth in orbit
- Speed of the sun
- Speed of the solar wind
- Speed of the Milky Way in space*
- Speed of light
- Speed of a car: Bad Boys II
- Speed of a car: The Blues Brothers
- Speed of a car: C'était un Rendezvous
- Speed of a car: The French Connection
- Speed of a car: Honda Civic Si commercial
- Speed of a car: Le Mans (Steve McQueen, 1971)
- Speed of a car: Road Trip
- Speed of a car: The Run
- Speed of a baseball: Bird Baseball
- Speed of a cliff diver: Huge Cliff Jump
- Speed of a cliff diver: Iraqi Olympic Diving
- Speed of a minibike: Jackass Number Two
- Speed of a motorcycle: Loading a Bike
- Speed of a snowmobile: Snow Jump

## Volume☝

- Volume of a drop of water
- Volume of a human heart
- Volume of a human brain
- Volume of a human bladder
- Volume of a human stomach
- Volume of human lungs
- Volume of blood in a human*
- Volume of water consumed by New York City
- Volume of water consumed by the US
- Volume of bottled water consumption
- Volume of US soft drink consumption
- Volume of [US or world] milk consumption
- Volume of [US, British, or world] gin consumption
- Volume of vodka consumption
- Volume of US whiskey consumption
- Volume of US rum consumption
- Volume of world beer consumption
- Volume of a swimming pool
- Volume of water in New York City reservoirs
- Volume of water in US reservoirs
- Volume of New York City's annual precipitation*
- Volume of Seattle's annual precipitation
- Volume of earth's annual precipitation
- Volume of earth's lakes
- Volume of earth's rivers*
- Volume of earth's glaciers
- Volume of earth's polar ice caps*
- Volume of earth's groundwater
- Volume of earth's oceans*
- Volume of US petroleum production
- Volume of US petroleum consumption
- Volume of US petroleum reserves*
- Volume of world petroleum production
- Volume of world petroleum reserves

* entries marked with an asterisk include editor's commentary

accelerationa,
angular‑velocityω,
areaA,
densityρ,
dimensionD,
electric‑currentI,
electric‑fieldE,
electric‑voltageV,
electrical‑resistivityρ,
energyE,
forceF,
frequencyƒ,
frictionµ,
lengthℓ,
magnetic‑fieldB,
massm,
money$,
number#,
powerP,
pressurep,
refractionn,
restitutioncor,
temperatureT,
timet,
velocityv,
volumeV