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How well do you know the rules of football?
play.howstuffworks.com/quiz/how-much-do-you-know-football-rules
American football is one of the most popular sports on Earth. From first downs to touchdowns, the game features a plethora of rules both obvious and obscure. How much do you know about football rules?
Robert the Doll: Serious Nightmare or Innocent Child's Toy?
entertainment.howstuffworks.com/robert-the-doll.htm
Robert the Doll, with his pockmarked face and little sailor suit, could scare the bejesus out of anyone, but what's the truth behind the stories of his mischief?
202 Angel Number Meaning: Balance, Spiritual Guidance & New Beginnings
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/202-angel-number.htm
Discover the hidden message your angels are sending about balance, new beginnings, and spiritual growth. Find out how 202 could guide your love life, career, and destiny today.
Tsar Bomba: The Most Powerful Nuclear Weapon Ever Built
science.howstuffworks.com/tsar-bomba.htm
In 1961, the Soviet Union detonated the Tsar Bomba, still the biggest, most powerful nuclear bomb ever built. One of the cameramen who recorded the event said it sounded "as if the Earth has been killed."
How Floppy Disk Drives Work
computer.howstuffworks.com/floppy-disk-drive.htm
Floppy disk drives have been around since the birth of personal computing -- find out how they work!
How Artificial Vision Will Work
science.howstuffworks.com/innovation/everyday-innovations/artificial-vision.htm
There was once no cure for blindness, but artificial vision systems implanted directly on the retina may restore sight. Is a silicon microchip the answer to combating retinal disease?
Can humans hear in space?
science.howstuffworks.com/humans-hear-in-space.htm
To hear in space involves several variables, including sound movement and environmental medium. Learn if humans hear in space.
How Mobile Printing Works
home.howstuffworks.com/mobile-printing.htm
Mobile printing allows people on the go to print documents wherever they choose. Learn about mobile printing and find out how a mobile printer works.
How LED Incapacitators Work
science.howstuffworks.com/led-incapacitator.htm
LED incapacitators are non-lethal devices used by law enforcement officials. Learn about LED incapacitators.
How Automatic Solar Panel Cleaning Systems Work
science.howstuffworks.com/environmental/green-tech/sustainable/solar-panel-cleaning-system.htm
Automatic solar panel cleaning makes solar panels far more efficient. Visit HowStuffWorks to learn all about automatic solar panel cleaning.