Search Results | inventions
Your search for "inventions" returned 1,918 results
Why Don't We All Use the Same Time Zone?
science.howstuffworks.com/environmental/earth/geophysics/time-zone.htm
The world has only had time zones since the late 1800s. Some people think we should eliminate them and have just one universal time instead.
How Chopsticks Became the Staple Utensil of Asia
recipes.howstuffworks.com/chopsticks.htm
Chopsticks have been in use since 1200 B.C.E. And today 20 percent of the world's population use the utensil. HowStuffWorks looks at its history.
17th-century Plague Doctors Were the Stuff of Nightmares
history.howstuffworks.com/european-history/plague-doctors.htm
HowStuffWorks takes the creepy masks off the 17th century plague doctors.
90% of People Can't Name These Terrifying Horror Movies. Can You?
play.howstuffworks.com/quiz/92-people-cant-guess-these-35-horror-movies-just-one-scene-can-you
We can all remember that one horror movie scene that terrified us while growing up. See how many of these horror movies you can name from a single image.
Paper-mache: Puppets, Piñatas and Bowls Anyone Can Make
lifestyle.howstuffworks.com/crafts/paper-crafts/paper-mache.htm
Paper-mache has been used by ancient cultures and schoolchildren alike to create sculptures, masks and statues that are durable, light and easily created.
Crinkle Crankle: The Serpentine Wall With a Funny Name
science.howstuffworks.com/engineering/structural/crinkle-crankle-wall.htm
Crinkle crankle walls undulate, mimicking the shape of a snake's slither. But what's the purpose of these wavy walls?
How the CPR Doll Developed From a Famous Parisian Death Mask
history.howstuffworks.com/european-history/cpr-doll-history.htm
CPR Annie has been called "the most-kissed face in the world." But the doll's look was improbably inspired by a famous Parisian death mask.
The Origins of the Steamship
science.howstuffworks.com/innovation/inventions/steamship.htm
Steamships quickly replaced sails in the early 1800s. Learn more about the origins of steamships and the innovations that led to their creation.
What Is Number Theory?
science.howstuffworks.com/math-concepts/number-theory.htm
For many of us, a number is just a number, a bit of information that tells you, say, what time it is. But mathematicians look at that same number and divine relationships that underlie nature itself. Ready to enter the trippy world of number theory?
How Casinos Work
entertainment.howstuffworks.com/casino.htm
Casinos bring in billions of dollars in revenue each year. Learn about casinos and find out how security keeps casinos safe and fair.