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    Time, Reimagined.

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    Fascinating Time Facts

    500+ curious and mind-bending facts about time.

    The fastest recorded snowboarding speed is 126 mph.

    Fact #238 of 502

    Your body sheds about 1.5 pounds of skin each year.

    Fact #304 of 502

    Your tongue has about 10,000 taste buds that regenerate every 2 weeks.

    Fact #211 of 502

    Light takes 5.5 hours to reach Pluto from the Sun.

    Fact #200 of 502

    The concept of 'today' doesn't exist in space - astronauts experience 16 sunrises and sunsets daily.

    Fact #125 of 502

    Light from the Sun takes 8 minutes and 20 seconds to reach Earth.

    Fact #196 of 502

    The fastest elevator in the world travels at 46 mph.

    Fact #243 of 502

    The human eye blinks about 4.2 million times a year.

    Fact #58 of 502

    The oldest known surviving photograph is 197 years old.

    Fact #8 of 502

    Light takes 100,000 years to travel from the Sun's core to its surface.

    Fact #190 of 502

    A single neuron can fire 200 times per second.

    Fact #41 of 502

    The shortest war in history lasted 38 minutes (Anglo-Zanzibar War, 1896).

    Fact #228 of 502

    The London Bridge is now in Arizona - it was sold and relocated in 1968.

    Fact #249 of 502

    The oldest known prosthetic is a 3,000-year-old wooden toe.

    Fact #227 of 502

    The shortest complete sentence in English is 'Go.'

    Fact #5 of 502

    The longest recorded flight of a chicken is 13 seconds.

    Fact #204 of 502

    A raindrop can fall at speeds between 2-18 mph depending on size.

    Fact #135 of 502

    The oldest known school is 5,000 years old (in ancient Sumer).

    Fact #11 of 502

    Light takes 43 minutes to travel from Jupiter to Earth.

    Fact #35 of 502

    Your ears produce more earwax when you're afraid.

    Fact #354 of 502

    Light from the Sun's core was generated 40,000 years ago but released today.

    Fact #408 of 502

    The oldest known writing system is 5,000 years old (Sumerian cuneiform).

    Fact #180 of 502

    Your hair grows about 6 inches per year.

    Fact #188 of 502

    The oldest known underwear is 600 years old.

    Fact #46 of 502

    The fastest land animal is the cheetah at 70 mph.

    Fact #263 of 502

    Your stomach produces a new layer of mucus every two weeks.

    Fact #37 of 502

    Your blood takes about 20 seconds to circulate through your entire body.

    Fact #54 of 502

    Your kidneys filter about 50 gallons of blood every day.

    Fact #454 of 502

    The oldest known shoes are 5,500 years old.

    Fact #467 of 502

    The longest river is the Nile at 4,135 miles.

    Fact #20 of 502

    The Great Wall of China was built over approximately 2,000 years.

    Fact #32 of 502

    The longest living insect is the termite queen at 50+ years.

    Fact #210 of 502

    Your body makes 2 million new red blood cells every second.

    Fact #457 of 502

    The oldest known perfume is 4,000 years old.

    Fact #45 of 502

    Your eyes can focus on 50 different objects per second.

    Fact #473 of 502

    The longest time between two twins being born is 87 days.

    Fact #343 of 502

    The fastest missile can travel at 15,000 mph.

    Fact #4 of 502

    A single cloud can weigh more than 1 million pounds.

    Fact #488 of 502

    The human eye can distinguish about 10 million different colors.

    Fact #489 of 502

    Light takes 100,000 years to cross the Milky Way galaxy.

    Fact #485 of 502

    The longest mountain range on land is the Andes at 4,350 miles.

    Fact #482 of 502

    A single day contains 86,400 seconds.

    Fact #205 of 502

    A sneeze travels at approximately 100 mph.

    Fact #159 of 502

    Your pancreas produces about 2 liters of digestive juice daily.

    Fact #450 of 502

    A single raindrop falls at about 20 mph.

    Fact #497 of 502

    Your lungs breathe in about 11,000 liters of air every day.

    Fact #484 of 502

    The tallest tree in the world is 380 feet tall (Hyperion, a coast redwood).

    Fact #47 of 502

    The fastest train in the world travels at 375 mph.

    Fact #169 of 502

    The oldest known map is 14,000 years old.

    Fact #55 of 502

    A day on Mercury lasts 176 Earth days.

    Fact #49 of 502

    The fastest recorded baseball pitch is 105 mph.

    Fact #60 of 502

    A single snowflake takes about an hour to fall from cloud to ground.

    Fact #321 of 502

    Light from Andromeda Galaxy takes 2.5 million years to reach Earth.

    Fact #372 of 502

    The Eiffel Tower can grow up to 6 inches taller in summer due to thermal expansion.

    Fact #217 of 502

    The longest recorded avalanche lasted 16.5 seconds covering 1.5 miles.

    Fact #292 of 502

    A single photosynthesis reaction takes about 0.001 seconds.

    Fact #145 of 502

    The fastest recorded pole vault approach speed is 23 mph.

    Fact #476 of 502

    Your body has about 100 billion neurons in the brain.

    Fact #151 of 502

    Your brain uses 20% of your body's energy despite being only 2% of body weight.

    Fact #246 of 502

    The universe is approximately 13.8 billion years old.

    Fact #337 of 502

    Your red blood cells make about 250,000 round trips through your body before dying.

    Fact #323 of 502

    Your body has enough fat to make 7 bars of soap.

    Fact #191 of 502

    Your stomach lining replaces itself every 3-4 days.

    Fact #257 of 502

    The oldest known wine is 8,000 years old.

    Fact #42 of 502

    The oldest known star is 13.6 billion years old.

    Fact #78 of 502

    Light takes 170,000 years to travel from one edge of our galaxy to the other.

    Fact #491 of 502

    A year on Uranus is 84 Earth years.

    Fact #442 of 502

    Light takes 1.3 hours to travel from Uranus to Earth.

    Fact #449 of 502

    The oldest known sentence written is 4,400 years old.

    Fact #10 of 502

    A day on Ceres (dwarf planet) lasts just 9 hours.

    Fact #410 of 502

    Your pancreas produces about 1 liter of digestive juice per day.

    Fact #268 of 502

    The oldest known playable musical instrument is 9,000 years old.

    Fact #179 of 502

    Sound travels at 767 mph at sea level.

    Fact #198 of 502

    Your liver stores vitamins and minerals for future use.

    Fact #34 of 502

    A cockroach can live for weeks without its head.

    Fact #469 of 502

    A single synapse in your brain can transmit 1,000 nerve impulses per second.

    Fact #405 of 502

    A peregrine falcon can dive at speeds over 240 mph.

    Fact #27 of 502

    The fastest growing human nail is the middle finger.

    Fact #247 of 502

    A sperm whale can hold its breath for 90 minutes.

    Fact #14 of 502

    The fastest marine animal is the black marlin at 80 mph.

    Fact #67 of 502

    Your body contains enough carbon to fill 900 pencils.

    Fact #297 of 502

    The fastest recorded javelin throw traveled at 65 mph.

    Fact #274 of 502

    The fastest recorded high jump clearance speed was 23 mph.

    Fact #360 of 502

    A day on Callisto (Jupiter's moon) lasts 16.7 Earth days.

    Fact #270 of 502

    The oldest known dental filling is 6,500 years old.

    Fact #306 of 502

    Your body generates about 3.6 million red blood cells every second.

    Fact #286 of 502

    A year on Venus is 225 Earth days.

    Fact #44 of 502

    A day on Enceladus (Saturn's moon) lasts 1.37 Earth days.

    Fact #293 of 502

    The oldest known cave paintings are 40,000 years old.

    Fact #444 of 502

    The fastest recorded bowling ball speed is 47 mph.

    Fact #498 of 502

    The fastest recorded fastball softball pitch is 77 mph.

    Fact #140 of 502

    Light takes 4.2 light years to reach us from Proxima Centauri.

    Fact #256 of 502

    A single bolt of lightning lasts about 0.2 seconds.

    Fact #221 of 502

    A year on Mars is 687 Earth days.

    Fact #318 of 502

    The oldest known university is 1,163 years old (University of al-Qarawiyyin in Morocco).

    Fact #377 of 502

    The oldest known city is Jericho at 11,000 years old.

    Fact #313 of 502

    The fastest recorded squash serve is 176 mph.

    Fact #480 of 502

    The deepest point in the ocean is the Mariana Trench at 36,000 feet.

    Fact #130 of 502

    A single lightning bolt contains enough energy to toast 100,000 slices of bread.

    Fact #48 of 502

    Light takes 2,537 years to travel from the North Star to Earth.

    Fact #376 of 502

    Your body generates about 100 watts of power at rest.

    Fact #147 of 502

    The coldest temperature ever recorded on Earth was -128.6°F in Antarctica.

    Fact #279 of 502

    A day on Venus is longer than its year - it takes 243 Earth days to rotate once but only 225 Earth days to orbit the Sun.

    Fact #192 of 502

    Light takes 640 years to travel from the North Star to Earth.

    Fact #452 of 502

    Your lungs contain about 300 million air sacs called alveoli.

    Fact #162 of 502

    The oldest known living animal is a 507-year-old clam.

    Fact #258 of 502

    The fastest recorded badminton smash is 306 mph.

    Fact #385 of 502

    The fastest recorded triple jump takeoff was 24 mph.

    Fact #18 of 502

    The oldest known constitution still in use is 235 years old (US Constitution).

    Fact #3 of 502

    A single day on Jupiter lasts only 10 hours despite being the largest planet.

    Fact #253 of 502

    The longest recorded time awake is 11 days 25 minutes.

    Fact #59 of 502

    Your skin completely renews itself every 28 days.

    Fact #250 of 502

    Your body produces 25 million new cells every second.

    Fact #397 of 502

    The fastest commercial airliner cruises at 614 mph.

    Fact #370 of 502

    The fastest recorded tennis serve is 163 mph.

    Fact #106 of 502

    A blue whale's heart beats only 5 times per minute.

    Fact #341 of 502

    A cheetah can go from 0 to 60 mph in just 3 seconds.

    Fact #375 of 502

    The Earth rotates at about 1,000 mph at the equator.

    Fact #80 of 502

    Your fingernails grow about 0.1 millimeters per day.

    Fact #422 of 502

    The fastest recorded hammer throw traveled at 82 mph.

    Fact #264 of 502

    The fastest recorded badminton smash is 306 mph.

    Fact #414 of 502

    A clownfish can change its sex if needed for survival.

    Fact #222 of 502

    The oldest known paved street is 4,600 years old (in ancient Egypt).

    Fact #102 of 502

    The fastest animal is the peregrine falcon at 240 mph in a dive.

    Fact #283 of 502

    Your hair grows faster in warm weather.

    Fact #281 of 502

    A single hair strand can support 100 grams of weight.

    Fact #209 of 502

    Your body has enough potassium to fire a toy cannon.

    Fact #131 of 502

    Your nose can remember 50,000 different scents.

    Fact #401 of 502

    The longest recorded human pregnancy was 375 days.

    Fact #259 of 502

    Your body can distinguish between 1 trillion different smells.

    Fact #339 of 502

    The fastest submarine can travel at 52 mph.

    Fact #187 of 502

    Your stomach acid is strong enough to dissolve metal.

    Fact #296 of 502

    Octopuses have three hearts and blue blood.

    Fact #171 of 502

    The oldest known jewelry is 142,000 years old.

    Fact #433 of 502

    The fastest recorded bobsled speed is 93 mph.

    Fact #477 of 502

    Your small intestine is about 20 feet long.

    Fact #7 of 502

    A day on Eris lasts about 25.9 hours.

    Fact #366 of 502

    The Oxford University was teaching before the Aztec Empire was founded (1096 vs 1428).

    Fact #168 of 502

    The oldest known library is 4,700 years old (Library of Ashurbanipal).

    Fact #298 of 502

    Your body replaces about 330 billion cells every day.

    Fact #309 of 502

    The shortest measurable time is one Planck time: 5.4×10⁻⁴⁴ seconds (0.000...with 43 zeros...0001).

    Fact #312 of 502

    Light takes 12.5 minutes to travel from Mars to the Sun.

    Fact #381 of 502

    The oldest known road is 6,000 years old (Sweet Track in England).

    Fact #148 of 502

    The oldest known wheel was invented about 5,500 years ago.

    Fact #284 of 502

    The oldest known joke is 4,000 years old (a Sumerian proverb).

    Fact #141 of 502

    The oldest known glasses are 700 years old.

    Fact #369 of 502

    The oldest known concrete is 2,100 years old (from Roman Pantheon).

    Fact #115 of 502

    Your body produces about 25,000 quarts of saliva in a lifetime.

    Fact #132 of 502

    The fastest recorded water polo throw is 70 mph.

    Fact #261 of 502

    A box jellyfish can swim at 4.6 mph.

    Fact #133 of 502

    A year on Eris (dwarf planet) is 557 Earth years.

    Fact #499 of 502

    The oldest known bra is 600 years old.

    Fact #62 of 502

    Your body loses about 40,000 dead skin cells every minute.

    Fact #215 of 502

    The oldest known cooking pots are 20,000 years old.

    Fact #301 of 502

    A photon takes 40,000 years to travel from the Sun's core to Earth.

    Fact #311 of 502

    The fastest recorded mile run averaged 16.13 mph.

    Fact #185 of 502

    A sailfish can swim at speeds up to 68 mph.

    Fact #123 of 502

    A year on Pluto is 248 Earth years.

    Fact #412 of 502

    The fastest recorded bungee jump descent is 140 mph.

    Fact #429 of 502

    The oldest known stock exchange is 424 years old (Amsterdam Stock Exchange).

    Fact #225 of 502

    Your body produces enough stomach acid to dissolve a razor blade.

    Fact #139 of 502

    Honey never spoils - archaeologists have found 3,000-year-old honey in Egyptian tombs that's still edible.

    Fact #88 of 502

    A year on Earth is 365.25 days (hence leap years every 4 years).

    Fact #110 of 502

    The human body produces 25 million new cells each second.

    Fact #415 of 502

    A day on Titan (Saturn's moon) is 16 Earth days.

    Fact #166 of 502

    The fastest recorded volleyball spike is 82 mph.

    Fact #472 of 502

    Your body has about 60,000 miles of blood vessels.

    Fact #181 of 502

    Your brain waves can generate enough electricity to power a small light.

    Fact #38 of 502

    Your heart pumps about 2,000 gallons of blood every day.

    Fact #22 of 502

    The average person walks the equivalent of 5 times around the world in a lifetime.

    Fact #51 of 502

    Light takes 8 minutes to travel from the Sun to Mercury.

    Fact #184 of 502

    The oldest known clock was made by Yi Xing in 725 AD in China, using water to power it.

    Fact #496 of 502

    Light from the most distant known quasar took 13.03 billion years to reach us.

    Fact #310 of 502

    A housefly's entire life cycle from egg to death is about 30 days.

    Fact #2 of 502

    The fastest recorded swim (100m freestyle) averaged 5.2 mph.

    Fact #305 of 502

    Butterflies taste with their feet.

    Fact #308 of 502

    An ant can lift 50 times its body weight.

    Fact #230 of 502

    A single white blood cell can destroy up to 100 bacteria.

    Fact #186 of 502

    The fastest fish is the sailfish at 68 mph.

    Fact #365 of 502

    The deepest mine on Earth goes down 2.4 miles (Mponeng Gold Mine in South Africa).

    Fact #193 of 502

    Your body has about 2 square meters of skin.

    Fact #124 of 502

    The oldest known public library is 2,267 years old (Library of Celsus foundation).

    Fact #176 of 502

    The oldest known postal service is 2,500 years old (Persian postal system).

    Fact #252 of 502

    A year on Ceres (dwarf planet) is 4.6 Earth years.

    Fact #254 of 502

    A cosmic year (Sun's orbit around galaxy center) takes 225-250 million years.

    Fact #212 of 502

    The longest recorded time holding one's breath underwater is 24 minutes 37 seconds.

    Fact #411 of 502

    Light takes 1,342 years to travel across the Milky Way galaxy.

    Fact #287 of 502

    The oldest known hotel is 1,316 years old (Nishiyama Onsen Keiunkan in Japan).

    Fact #73 of 502

    The longest recorded note held by a human is 1 minute 52 seconds.

    Fact #87 of 502

    The fastest recorded speed on ice skates is 56.5 mph.

    Fact #483 of 502

    The human body contains enough iron to make a 3-inch nail.

    Fact #160 of 502

    If Earth's history was compressed into 24 hours, humans would appear at 23:59:56.

    Fact #435 of 502

    Your body replaces all its atoms every 7-10 years.

    Fact #36 of 502

    Your ears never stop growing throughout your entire life.

    Fact #233 of 502

    The fastest recorded 5K run averaged 13.06 mph.

    Fact #150 of 502

    The fastest recorded 100m sprint averaged 23.35 mph.

    Fact #325 of 502

    The oldest known mirror is 8,000 years old.

    Fact #355 of 502

    The oldest known music school is 439 years old (Accademia Nazionale di Santa Cecilia in Rome).

    Fact #330 of 502

    Your eyes move about 100,000 times per day.

    Fact #324 of 502

    The oldest known national anthem is 1,192 years old (Kimigayo of Japan).

    Fact #1 of 502

    The oldest known written constitution is 2,395 years old (Athenian constitution).

    Fact #182 of 502

    Your pupils dilate up to 45% when looking at something you love.

    Fact #113 of 502

    Light takes 25,000 years to travel from the center of our galaxy to Earth.

    Fact #241 of 502

    A giant squid's eye can be 10 inches in diameter, the largest eye in the animal kingdom.

    Fact #426 of 502

    Your body has about 100,000 hairs on your head.

    Fact #463 of 502

    The fastest recorded cycling sprint reached 80 mph on flat ground.

    Fact #201 of 502

    The oldest known zoo is 4,500 years old (Hierakonpolis, Egypt).

    Fact #300 of 502

    The average person spends 25 years sleeping.

    Fact #285 of 502

    There are more possible iterations of a game of chess than atoms in the observable universe.

    Fact #345 of 502

    The fastest recorded swim (400m freestyle) averaged 4.95 mph.

    Fact #155 of 502

    Light takes 16 minutes to travel from the Sun to Mars.

    Fact #441 of 502

    A single human nerve impulse travels at 250 mph.

    Fact #39 of 502

    A giant tube worm can live for 250 years in deep ocean vents.

    Fact #403 of 502

    Light takes 100 billion years to travel across the observable universe.

    Fact #65 of 502

    The longest snake ever recorded was 25 feet long.

    Fact #396 of 502

    The fastest recorded cricket bowl is 100 mph.

    Fact #389 of 502

    The Statue of Liberty arrived in New York in 350 pieces.

    Fact #175 of 502

    The oldest known restaurant is 1,300 years old (Sobrino de Botín in Madrid).

    Fact #347 of 502

    A day on Titan (Saturn's moon) lasts 16 Earth days.

    Fact #260 of 502

    The fastest recorded speed skiing is 158 mph.

    Fact #275 of 502

    A 'jiffy' is an actual unit of time - 1/100th of a second.

    Fact #327 of 502

    The average person spends 6 months of their lifetime waiting for red lights to turn green.

    Fact #478 of 502

    The oldest known coffee house is 536 years old (Kiva Han in Turkey, now closed).

    Fact #91 of 502

    The fastest recorded long jump had a takeoff speed of 26 mph.

    Fact #277 of 502

    The oldest known medical school is 961 years old (School of Salerno in Italy).

    Fact #288 of 502

    Light from the Big Bang has been traveling for 13.8 billion years.

    Fact #289 of 502

    The Big Ben clock tower is officially named Elizabeth Tower.

    Fact #500 of 502

    Your fingernails grow 4 times faster than your toenails.

    Fact #495 of 502

    Your immune system replaces all white blood cells every few days.

    Fact #501 of 502

    The fastest recorded racquetball serve is 190 mph.

    Fact #153 of 502

    Your body completely replaces itself at the cellular level every 7-10 years.

    Fact #350 of 502

    The slowest mammal is the three-toed sloth, moving at 0.15 mph.

    Fact #231 of 502

    Light takes 1 hour and 23 minutes to travel from the Sun to Saturn.

    Fact #459 of 502

    Your body has about 37 trillion cells.

    Fact #387 of 502

    Your body produces about 10 million new skin cells every hour.

    Fact #69 of 502

    The fastest typist can type 216 words per minute.

    Fact #487 of 502

    The Voyager 1 spacecraft has been traveling for over 45 years and is only 14.5 billion miles away.

    Fact #406 of 502

    The longest living mammal is the bowhead whale at 200+ years.

    Fact #53 of 502

    The average dream lasts 2-3 seconds.

    Fact #224 of 502

    The oldest known alphabet is 3,800 years old.

    Fact #167 of 502

    The oldest known lipstick is 5,000 years old.

    Fact #24 of 502

    The oldest known public bath is 2,300 years old (in Pakistan).

    Fact #245 of 502

    Light from the most distant galaxy observed took 13.4 billion years to reach us.

    Fact #273 of 502

    The oldest known pyramid is 4,700 years old (Pyramid of Djoser).

    Fact #453 of 502

    The oldest known written law is 4,350 years old (Code of Ur-Nammu).

    Fact #299 of 502

    A giant Pacific octopus can fit through any opening larger than its beak.

    Fact #64 of 502

    A day on Pluto lasts 6.4 Earth days.

    Fact #174 of 502

    The oldest known botanical garden is 466 years old (Orto botanico di Pisa in Italy).

    Fact #103 of 502

    Your liver can regenerate fully within 6 months.

    Fact #451 of 502

    The speed of light is 299,792,458 meters per second.

    Fact #71 of 502

    The oldest known stone tools are 3.3 million years old (from Kenya).

    Fact #203 of 502

    Light takes 3.2 seconds to travel from the Moon to Earth.

    Fact #363 of 502

    Light takes 8 hours to reach Pluto from the Sun.

    Fact #121 of 502

    Light takes 5.5 years to reach the nearest star system outside our solar system.

    Fact #267 of 502

    The fastest recorded shot put throw traveled at 35 mph.

    Fact #16 of 502

    The Andromeda Galaxy is approaching the Milky Way at 250,000 mph.

    Fact #282 of 502

    The oldest known city wall is 11,000 years old (Jericho).

    Fact #236 of 502

    A year on Earth was only 18 hours long 1.4 billion years ago.

    Fact #129 of 502

    The oldest known tool is 3.3 million years old.

    Fact #393 of 502

    The longest recorded duration of a single musical note on saxophone is 47 minutes.

    Fact #374 of 502

    Your body produces about 1.5 liters of saliva daily.

    Fact #31 of 502

    Light takes 2 hours to travel from Uranus to Earth.

    Fact #436 of 502

    The average person produces enough saliva to fill two swimming pools in a lifetime.

    Fact #276 of 502

    The fastest recorded football (soccer) kick is 131 mph.

    Fact #388 of 502

    The oldest known calendar is 10,000 years old (Warren Field in Scotland).

    Fact #294 of 502

    Time zones were invented in 1883 by railroad companies.

    Fact #161 of 502

    You're technically younger when you stand at sea level than when you're on a mountain.

    Fact #122 of 502

    Your body breathes in about 11,000 liters of air each day.

    Fact #338 of 502

    The oldest known science museum is 384 years old (Museo Galileo in Italy).

    Fact #340 of 502

    Light takes 5 hours and 29 minutes to travel from the Sun to Pluto.

    Fact #391 of 502

    A day on Makemake (dwarf planet) lasts 22.5 hours.

    Fact #470 of 502

    A housefly lives for only 28 days on average.

    Fact #390 of 502

    The oldest known anthem lyrics are 2,700 years old (Seikilos epitaph).

    Fact #77 of 502

    A mako shark can swim at speeds up to 60 mph.

    Fact #342 of 502

    The oldest known winery is 6,100 years old (in Armenia).

    Fact #291 of 502

    Light takes 1 nanosecond to travel 1 foot.

    Fact #232 of 502

    The fastest recorded speed on a zipline is 102 mph.

    Fact #128 of 502

    A single human hair grows at about 0.3-0.5 millimeters per day.

    Fact #90 of 502

    A garden snail can sleep for 3 years.

    Fact #235 of 502

    Your body replaces taste buds every 10-14 days.

    Fact #364 of 502

    A leap second is occasionally added to keep atomic clocks in sync with Earth's rotation.

    Fact #394 of 502

    The fastest spacecraft is Parker Solar Probe at 430,000 mph relative to the Sun.

    Fact #99 of 502

    The oldest known city planning is 4,600 years old (Mohenjo-daro in Pakistan).

    Fact #278 of 502

    The lifespan of a taste bud is about 10 days.

    Fact #352 of 502

    The oldest known pharmacy is 800 years old (Esteve Pharmacy in Spain).

    Fact #57 of 502

    The fastest recorded lacrosse shot is 119 mph.

    Fact #164 of 502

    A day on Europa (Jupiter's moon) lasts 3.55 Earth days.

    Fact #17 of 502

    Your heart creates enough pressure to squirt blood 30 feet.

    Fact #137 of 502

    Your liver performs over 500 functions and can regenerate within weeks.

    Fact #490 of 502

    An octopus has three hearts and nine brains.

    Fact #447 of 502

    Light from the edge of the observable universe takes 13.8 billion years to reach us.

    Fact #331 of 502

    A hummingbird can fly up to 34 mph.

    Fact #63 of 502

    A year on Mercury is 88 Earth days.

    Fact #104 of 502

    Light takes 30 minutes to travel from Earth to Jupiter at closest approach.

    Fact #76 of 502

    The fastest recorded marathon pace was 12.97 mph average.

    Fact #138 of 502

    A day on Io (Jupiter's moon) lasts 1.77 Earth days.

    Fact #255 of 502

    The fastest recorded cycling speed (1 hour) averaged 34.23 mph.

    Fact #28 of 502

    Light takes 1.3 seconds to travel from Earth to the Moon.

    Fact #163 of 502

    Your eyes blink about 15-20 times per minute.

    Fact #424 of 502

    A moment was historically defined as 1.5 minutes or 90 seconds.

    Fact #404 of 502

    Your body produces about 10,000 gallons of saliva in a lifetime.

    Fact #40 of 502

    A day on Earth is getting longer by about 1.7 milliseconds every century.

    Fact #23 of 502

    A day on Europa (Jupiter's moon) is 3.5 Earth days.

    Fact #13 of 502

    Your eyelashes have a lifespan of about 150 days before falling out.

    Fact #346 of 502

    Light takes 13 billion years to reach us from the most distant known galaxies.

    Fact #107 of 502

    Your body contains enough iron to make a 3-inch nail.

    Fact #61 of 502

    The speed of Earth's orbit around the Sun is 67,000 mph.

    Fact #384 of 502

    The oldest known library catalog is 4,000 years old.

    Fact #194 of 502

    The oldest living organism is a bristlecone pine tree at 5,000+ years old.

    Fact #234 of 502

    The oldest known calendar is 10,000 years old (Warren Field in Scotland).

    Fact #356 of 502

    Your brain is about 73% water.

    Fact #379 of 502

    The fastest recorded skeleton sled speed is 94 mph.

    Fact #117 of 502

    The fastest bird in level flight is the white-throated needletail at 105 mph.

    Fact #443 of 502

    Your body contains enough phosphorus to make 2,200 match heads.

    Fact #25 of 502

    A neutron star spins up to 500 times per second.

    Fact #446 of 502

    Your body uses about 200 muscles to take a single step.

    Fact #349 of 502

    A barnacle can grow up to 1 inch per year on a ship's hull.

    Fact #146 of 502

    Your body loses and regrows outer skin cells every 2-4 weeks.

    Fact #244 of 502

    Your body produces about 2.5 million red blood cells every second.

    Fact #265 of 502

    Your body produces enough heat in 30 minutes to boil half a gallon of water.

    Fact #183 of 502

    Your body produces about 1.5 cups of gastric juice per meal.

    Fact #465 of 502

    A day used to be only 6 hours long 4 billion years ago.

    Fact #114 of 502

    Your brain generates enough electricity to power a lightbulb.

    Fact #68 of 502

    A second used to be defined as 1/86,400 of a solar day.

    Fact #240 of 502

    Your eyes can process 36,000 bits of information every hour.

    Fact #455 of 502

    Your body has about 100 trillion cells total.

    Fact #332 of 502

    Your brain generates about 50,000 thoughts per day.

    Fact #206 of 502

    The oldest known hospital is 1,300 years old (Mihintale Hospital in Sri Lanka).

    Fact #142 of 502

    A year on Saturn is 29.5 Earth years.

    Fact #269 of 502

    The human brain can process an image in as little as 13 milliseconds.

    Fact #399 of 502

    The fastest recorded swim (800m freestyle) averaged 4.92 mph.

    Fact #30 of 502

    Light from the Andromeda Galaxy started its journey before humans existed.

    Fact #75 of 502

    Your body's DNA, if unraveled, would stretch 10 billion miles.

    Fact #413 of 502

    The oldest known drinking establishment is 900 years old (Ye Olde Trip to Jerusalem in England).

    Fact #100 of 502

    An electric eel can generate 600 volts of electricity.

    Fact #218 of 502

    Light takes 310 light years to travel from Betelgeuse to Earth.

    Fact #158 of 502

    A day on Haumea lasts only 3.9 hours, the fastest rotation of any known large object.

    Fact #248 of 502

    The oldest known mathematical document is 4,000 years old (Rhind Papyrus).

    Fact #357 of 502

    Light takes 3 minutes to travel from the Sun to Venus.

    Fact #95 of 502

    The fastest computer in the world can perform 442 quadrillion calculations per second.

    Fact #333 of 502

    Light takes 27,000 years to complete one orbit around the Milky Way's center.

    Fact #461 of 502

    Your body contains enough sulfur to kill all fleas on an average dog.

    Fact #434 of 502

    The fastest recorded punch is 45 mph.

    Fact #239 of 502

    The oldest known board game is 5,000 years old (Senet from Egypt).

    Fact #315 of 502

    The fastest recorded swim (1500m freestyle) averaged 4.88 mph.

    Fact #395 of 502

    Your body sheds about 600,000 particles of skin every hour.

    Fact #440 of 502

    The oldest known continuously operating business is 1,440 years old (Kongō Gumi in Japan).

    Fact #302 of 502

    A year on Jupiter is 12 Earth years.

    Fact #19 of 502

    A dragonfly can fly backwards, upwards, and hover in mid-air.

    Fact #378 of 502

    The fastest recorded golf ball speed is 211 mph.

    Fact #382 of 502

    A gecko can run up walls at 3 feet per second.

    Fact #486 of 502

    Your brain cells can hold 5 times more information than the Encyclopedia Britannica.

    Fact #326 of 502

    Your body's small intestine has a surface area of about 2,700 square feet.

    Fact #322 of 502

    A mantis shrimp can punch with the force of a .22 caliber bullet in just 0.003 seconds.

    Fact #81 of 502

    Light takes 100 seconds to travel from Mars to Earth at closest approach.

    Fact #213 of 502

    The oldest known chocolate factory is 291 years old (Fry's in England).

    Fact #195 of 502

    A flea can jump 150 times its body length.

    Fact #50 of 502

    The oldest known continuous government is 776 years old (San Marino).

    Fact #216 of 502

    The oldest known beer brewery is 6,000 years old (in Armenia).

    Fact #335 of 502

    Light takes 2 hours and 40 minutes to travel from the Sun to Uranus.

    Fact #154 of 502

    The fastest recorded 24-hour run covered 188 miles (7.83 mph average).

    Fact #271 of 502

    A day on Titan (Saturn's moon) is exactly 15.95 Earth days.

    Fact #144 of 502

    The oldest known lighthouse is 2,300 years old (Tower of Hercules in Spain).

    Fact #229 of 502

    The oldest known beer recipe is 5,000 years old.

    Fact #9 of 502

    The fastest recorded 10K run averaged 12.77 mph.

    Fact #445 of 502

    A day on Neptune lasts about 16 hours.

    Fact #226 of 502

    Your body produces 300 billion new cells every day.

    Fact #471 of 502

    The fastest growing plant is bamboo at 35 inches per day.

    Fact #111 of 502

    Your heart beats about 3 billion times in an average lifetime.

    Fact #156 of 502

    A day on Triton (Neptune's moon) lasts 5.88 Earth days.

    Fact #170 of 502

    The fastest recorded luge speed is 95 mph.

    Fact #493 of 502

    The oldest known domesticated cat burial is 9,500 years old.

    Fact #314 of 502

    The fastest recorded 400m sprint averaged 20.72 mph.

    Fact #502 of 502

    The oldest known flag still in use is 800 years old (Denmark's flag).

    Fact #84 of 502

    The fastest recorded swim (50m freestyle) averaged 5.3 mph.

    Fact #272 of 502

    The oldest known national park is 151 years old (Yellowstone).

    Fact #359 of 502

    The fastest recorded tennis serve is 163 mph.

    Fact #214 of 502

    Sharks have existed longer than trees - by about 50 million years.

    Fact #26 of 502

    The longest mountain range is underwater - the Mid-Ocean Ridge at 40,000 miles.

    Fact #456 of 502

    The oldest known written language is 5,300 years old (Sumerian).

    Fact #82 of 502

    A day on Uranus lasts about 17 hours.

    Fact #421 of 502

    Light takes 4 hours to travel from Neptune to Earth.

    Fact #462 of 502

    Your bones are about 5 times stronger than steel.

    Fact #136 of 502

    The oldest known theater is 2,500 years old (Theatre of Dionysus in Greece).

    Fact #120 of 502

    Light takes 2 million years to travel from the nearest spiral galaxy to Earth.

    Fact #280 of 502

    Your body has about 640 different skeletal muscles.

    Fact #66 of 502

    A blue-ringed octopus is only 8 inches long but contains enough venom to kill 26 humans.

    Fact #307 of 502

    A hummingbird's heart beats up to 1,260 times per minute.

    Fact #219 of 502

    A single brain cell can hold 5 times as much information as an encyclopedia.

    Fact #173 of 502

    Bamboo can grow up to 35 inches in a single day.

    Fact #448 of 502

    The fastest recorded ultra-marathon pace (100 miles) averaged 7.84 mph.

    Fact #295 of 502

    A million seconds is 11 days; a billion seconds is 31 years.

    Fact #237 of 502

    Light takes 19 minutes to travel from Mars to Earth.

    Fact #431 of 502

    Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.

    Fact #79 of 502

    A year on Neptune is 165 Earth years.

    Fact #303 of 502

    The fastest recorded baseball pitch is 105 mph.

    Fact #494 of 502

    Your body can detect a single photon of light hitting your eye.

    Fact #223 of 502

    The fastest computer processor can execute 5 billion instructions per second.

    Fact #368 of 502

    Your body produces about 100 billion white blood cells per day.

    Fact #492 of 502

    Your intestines are home to 100 trillion bacteria.

    Fact #266 of 502

    The oldest known university charter is 929 years old (University of Bologna).

    Fact #94 of 502

    Your body contains enough carbon to make 900 pencils.

    Fact #290 of 502

    The fastest recorded soccer kick is 131 mph.

    Fact #242 of 502

    Light takes 6 hours to travel from Saturn to Earth.

    Fact #367 of 502

    Your body has about 206 bones as an adult, but 270 at birth.

    Fact #197 of 502

    The fastest recorded jai alai throw is 188 mph.

    Fact #177 of 502

    The fastest recorded 200m sprint averaged 23.31 mph.

    Fact #199 of 502

    A single atom vibrates at about 10 trillion times per second.

    Fact #52 of 502

    The oldest known recipe is 4,000 years old (for beer).

    Fact #172 of 502

    Light takes 0.13 seconds to travel around the Earth at the equator.

    Fact #208 of 502

    The fastest recorded wingsuit flight is 246 mph.

    Fact #319 of 502

    The oldest known parliament is 1,150 years old (Althing in Iceland).

    Fact #418 of 502

    The oldest known bank is 548 years old (Banca Monte dei Paschi di Siena).

    Fact #474 of 502

    The oldest known port is 4,500 years old (Wadi al-Jarf, Egypt).

    Fact #353 of 502

    Time passes faster at higher altitudes due to gravitational time dilation - your head ages faster than your feet.

    Fact #207 of 502

    Your body produces about 1.5 quarts of mucus every day.

    Fact #407 of 502

    The fastest recorded 800m sprint averaged 16.73 mph.

    Fact #21 of 502

    A day on the Moon lasts about 29.5 Earth days.

    Fact #72 of 502

    The fastest recorded golf drive is 217 mph.

    Fact #33 of 502

    The longest recorded jump by a flea is 13 inches.

    Fact #149 of 502

    A year on Saturn is 29 Earth years.

    Fact #348 of 502

    Light takes 247 years to complete one orbit of Pluto around the Sun.

    Fact #320 of 502

    A year on Makemake is 305 Earth years.

    Fact #165 of 502

    The longest migration is by the Arctic tern at 44,000 miles annually.

    Fact #409 of 502

    Your body has about 60,000 miles of blood vessels.

    Fact #317 of 502

    Your heartbeat synchronizes with the music you're listening to.

    Fact #202 of 502

    Light takes 4.2 years to reach us from the nearest star (Proxima Centauri).

    Fact #373 of 502

    The longest recorded flight by a bird is 11 days non-stop (bar-tailed godwit).

    Fact #437 of 502

    A single DNA molecule can store 215 petabytes of data.

    Fact #105 of 502

    The fastest growing fingernail is on your dominant hand's middle finger.

    Fact #152 of 502

    Your body has about 9,000 taste buds.

    Fact #427 of 502

    Your body produces enough saliva in a lifetime to fill two swimming pools.

    Fact #15 of 502

    The oldest known aqueduct is 2,750 years old (Jerwan Aqueduct in Iraq).

    Fact #468 of 502

    Light takes 500 seconds to reach Earth from the Sun.

    Fact #134 of 502

    Crocodiles can live up to 100 years.

    Fact #458 of 502

    The fastest recorded half marathon averaged 13.14 mph.

    Fact #329 of 502

    Light takes 50,000 years to escape from the Sun's core.

    Fact #178 of 502

    A teaspoon of neutron star material would weigh 6 billion tons.

    Fact #392 of 502

    The oldest known musical instrument is a 40,000-year-old flute.

    Fact #361 of 502

    The oldest known dam is 4,000 years old (Jawa Dam in Jordan).

    Fact #358 of 502

    A Portuguese man o'war's tentacles can reach 165 feet long.

    Fact #371 of 502

    Your body has more bacterial cells than human cells.

    Fact #316 of 502

    The fastest recorded swim (200m freestyle) averaged 5.1 mph.

    Fact #83 of 502

    The oldest known wheel and axle is 5,500 years old (from Mesopotamia).

    Fact #116 of 502

    The oldest known tattoo is 5,300 years old (Ötzi the Iceman).

    Fact #29 of 502

    Light takes 4 hours and 10 minutes to travel from the Sun to Neptune.

    Fact #425 of 502

    Your body temperature drops before sleep and rises before waking.

    Fact #334 of 502

    The fastest recorded discus throw traveled at 80 mph.

    Fact #432 of 502

    Light takes 1 hour to travel from Saturn to Earth.

    Fact #344 of 502

    The oldest known paper is 2,200 years old.

    Fact #6 of 502

    Your lungs expel air at speeds up to 100 mph when you sneeze.

    Fact #220 of 502

    Light takes 6 minutes to travel from the Sun to Earth's orbit at perihelion.

    Fact #328 of 502

    Your brain can process images in as little as 13 milliseconds.

    Fact #56 of 502

    A year on Haumea (dwarf planet) is 283 Earth years.

    Fact #351 of 502

    A year on Sedna (distant dwarf planet) is 11,400 Earth years.

    Fact #460 of 502

    A single honeybee produces about 1/12 teaspoon of honey in its lifetime.

    Fact #12 of 502

    Your small intestine is about 22 feet long.

    Fact #464 of 502

    Your brain can survive for 5-6 minutes without oxygen.

    Fact #420 of 502

    Your cells die and replace at a rate of millions per second.

    Fact #189 of 502

    Your heart beats about 100,000 times per day.

    Fact #362 of 502

    A tardigrade (water bear) can survive in space.

    Fact #157 of 502

    Your body has enough fat to make 7 bars of soap and 10 candles.

    Fact #466 of 502

    A blink of an eye lasts about 0.3 seconds.

    Fact #402 of 502

    The fastest recorded downhill cycling speed is 183 mph.

    Fact #43 of 502

    Your fingernails would grow about 3 feet long if never cut in a lifetime.

    Fact #262 of 502

    The oldest known musical notation is 3,400 years old.

    Fact #428 of 502

    Your diaphragm moves about 23,000 times per day.

    Fact #127 of 502

    Your body has about 78 organs.

    Fact #438 of 502

    The fastest recorded hockey shot is 108 mph.

    Fact #380 of 502

    A day on Ganymede (Jupiter's moon) lasts 7.15 Earth days.

    Fact #96 of 502

    The fastest man-made object is the Parker Solar Probe at 430,000 mph.

    Fact #479 of 502

    The oldest known bridge still in use is 3,200 years old (Arkadiko Bridge in Greece).

    Fact #143 of 502

    The oldest known paper money is 1,000 years old (from China).

    Fact #93 of 502

    The oldest known recipe for chocolate is 2,600 years old.

    Fact #98 of 502

    A bolt of lightning is 5 times hotter than the surface of the Sun.

    Fact #481 of 502

    The longest echo lasted 112 seconds (in a building in Scotland).

    Fact #126 of 502

    The oldest known button is 5,000 years old.

    Fact #398 of 502

    The oldest known pet cemetery is 2,000 years old.

    Fact #383 of 502

    Your body produces about 1-1.5 liters of mucus every day.

    Fact #475 of 502

    Your kidneys filter your entire blood volume about 400 times per day.

    Fact #74 of 502

    The Pacific Ocean contains about 25,000 islands.

    Fact #251 of 502

    Your eyes can distinguish between 500 shades of gray.

    Fact #89 of 502

    Light from the nearest galaxy takes 25,000 years to reach Earth.

    Fact #430 of 502

    The oldest known sewer system is 4,000 years old (in the Indus Valley).

    Fact #92 of 502

    Your brain processes information at about 120 meters per second.

    Fact #85 of 502

    The oldest known bread is 14,400 years old.

    Fact #112 of 502

    A year on Io (Jupiter's moon) is 1.77 Earth days.

    Fact #423 of 502

    The oldest known pottery is 20,000 years old.

    Fact #118 of 502

    The fastest muscle in the human body is the one that blinks your eyelid.

    Fact #109 of 502

    Your body uses 300 muscles to balance while standing still.

    Fact #101 of 502

    A single strand of spider silk is stronger than steel of the same thickness.

    Fact #439 of 502

    A seahorse can swim at 0.01 mph, making it the slowest fish.

    Fact #97 of 502

    A single red blood cell lives for about 120 days.

    Fact #416 of 502

    The oldest known dental school is 186 years old (Baltimore College of Dental Surgery).

    Fact #419 of 502

    A mantis shrimp can punch with the force of a bullet.

    Fact #386 of 502

    The oldest known cheese is 3,200 years old.

    Fact #417 of 502

    The oldest known sock is 1,600 years old.

    Fact #119 of 502

    The longest bridge in the world is 102 miles long (Danyang-Kunshan Grand Bridge).

    Fact #86 of 502

    The oldest known art school is 290 years old (Real Academia de Bellas Artes in Spain).

    Fact #108 of 502

    Your bones are constantly remodeling - you get a new skeleton every 10 years.

    Fact #70 of 502

    The oldest known zoo enclosure is 3,500 years old (in Hierakonpolis, Egypt).

    Fact #400 of 502

    The oldest known novel is 1,021 years old (The Tale of Genji).

    Fact #336 of 502