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science howstuffworks mobile menu howstuffworks science tech home garden auto culture more more health money animals lifestyle entertainment quizzes mobile newsletter 1 submit search search close search science tech home garden auto culture health money animals lifestyle entertainment quizzes submit search sign up for our newsletter mobile newsletter banner close howstuffworks newsletter mobile newsletter chat close mobile newsletter chat dots mobile newsletter chat dots mobile newsletter chat dots mobile newsletter chat avatar mobile newsletter chat subscribe science extremophiles how do these organisms push the limits of life read more topics to explore environmental science physical science innovation life science engineering science vs myth transportation military forces of nature space dictionary more advertisement will earth last forever how to lucid dream how supermoons work the real difference between plant and animal cells trending in science what s the hardest math problem in the world try these 9 what s the hardest wood in the world what s the scariest roller coaster in the world 10 contenders spirit guides bring believers comfort insight and aid advertisement engineering engineering is the discipline of design and construction of mechanical devices equipment structures and public works systems topics include aircraft technologies buildings bridges robotics and heavy machinery 10 types of metal and we don t mean the music find out more 10 types of swords for all sorts of circumstances find out more a horrifying russian lathe accident highlights vital safety protocols find out more the tallest roller coaster in the world stood for 19 years find out more environmental science the environment is truly a thing of beauty and should be protected whenever possible what can we do to save the environment and what new technology is available to help us the least visited country in the world is only 10 square miles find out more what state has the most mountains in the u s 8 peak records find out more 6 most futuristic cities powered by renewable energy find out more the most dangerous mountain to climb and 14 giving steep competition find out more forces of nature we see the destruction that the earth can unleash in the news on a regular basis here you can learn about hurricanes tornadoes earthquakes and other forces of nature where are tornadoes most common around the world find out more 8 states with the most tornadoes in the u s find out more the most dangerous volcano in the world and 9 scary others find out more best weather in the world 10 temperate locales find out more innovation do you know how common everyday items such as mirrors fireworks or sunglasses work this collection of innovation articles explores the workings of objects you may come into contact with on a regular basis who made fanta was it really the nazis favorite soda find out more mad honey comes from bees that gather this specific nectar find out more the evolution of dictaphones a comprehensive history find out more the evolution of the franklin stove from invention to modern efficiency find out more life science from the smallest microbe to the largest mammal life science explores the origins evolution and expansion of life in all its forms explore a wide range of topics from biology to genetics and evolution 9 types of intelligence the many ways to expand your mind find out more in vivo vs in vitro trials and why combining both is best find out more central heterochromia when to worry about eye color find out more phineas gage and the birth of modern neuroscience find out more military explore the weapons and combat systems used by the armed services a broad range of topics in the military channel includes tanks aircraft biological warfare and stealth technologies ghillie fishing aid and inspiration for camo suits find out more what is the strongest military in the world find out more anatomy of an underwater explosion find out more you can drive a tank find out more physical science physical science is the study of the physical world around you learn about everything from electricity to magnetism in this section tonnes vs tons metric vs imperial measurements strike again find out more 8 types of data that inform insights and relationships find out more the most expensive liquid is 26 000x the price of human blood find out more 7 types of alcohol for drinking cleaning and more find out more science dictionary do you know what a meteor is or what scientists mean when they are talking about cryogenics our collection of science terms explains the meaning of some of the most common scientific ideas explaining the kilometer km and converting to miles find out more the independent variable vs dependent variable in research find out more quiz how much do you know about stephen hawking take the quiz 10 cool things about carl sagan find out more science vs myth are vampires real what is an out of body experience are crop circles proof that aliens exist howstuffworks explores what is real and what is urban legend with this collection of science versus myth articles psychic powers fun to consider even without scientific support find out more how to manifest love merging mind and heart find out more how to manifest something with positive thinking a literal thought exercise find out more how to manifest someone more belief than science find out more space explore the vast reaches of space and mankind s continuing efforts to conquer the stars including theories such as the big bang the international space station plus what the future holds for space travel and exploration 10 types of stars blazing and collapsing in our universe find out more 7 types of eclipses lunar solar and hybrid find out more tall whites the classic extraterrestrial archetype find out more 15 famous astronauts who expanded our universe find out more transportation many of us take public transportation or fly in airplanes on a regular basis but have you ever wondered how all of these things work this collection of transportation articles help explain how people get from place to place the largest ship in the world and 10 runners up find out more the longest flight in the world takes almost 19 hours find out more the fastest fighter jet in history the nasa x 43 find out more the secrets of airline travel quiz take the quiz advertisement advertisement advertisement advertisement