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What device did Douglas Engelbart invent?

science.howstuffworks.com/innovation/big-thinkers/douglas-engelbart-invention.htm

If this were trivia night, your team could probably summon this answer without breaking a sweat. But in true polymath style, Engelbart's signature invention is only part of his computer genius. Meet him.

How MRI Works

science.howstuffworks.com/mri.htm

An MRI scan is the best way to see inside the human body. See what happens during an MRI scan and learn about MRI images and MRI safety.

10 Incredible Wind Power Facts

science.howstuffworks.com/environmental/green-science/10-wind-power-facts.htm

In the race to find alternative energy sources, wind power is a strong contender. In fact, it's already making its mark. How much do you know about this up-and-coming energy source?

How Pentago Works

entertainment.howstuffworks.com/leisure/brain-games/pentago.htm

Pentago, a connect-five game with a literal twist, has charmed and challenged players young and old. Learn how to play the game Pentago.

10 Mobile Apps for Music Lovers

electronics.howstuffworks.com/cell-phone-apps/10-mobile-apps-for-music-lovers.htm

There are plenty of mobile apps for music lovers. Find out which mobile apps for music lovers are best for your mobile device.

Desalination Plants: The Future of a Sustainable Water Supply

science.howstuffworks.com/environmental/earth/oceanography/desalination.htm

Desalination is the process of removing the salt from seawater, which turns the water into fresh drinking water. Learn about desalination.

Show Off Your Canadian Pride by Identifying These Snacks Only Popular in Canada

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If you think Canada's snack scene begins and ends with a serving of poutine, then get ready for an eye-opening trip across the country. From sea to shining sea, there's a distinctly Canadian snack for every taste and every mood.

How Does Herd Immunity Keep a Country Safe From Diseases?

science.howstuffworks.com/life/cellular-microscopic/herd-immunity.htm

Herd immunity relies on the principle of safety in numbers as far as vaccinations go. Find out why herd immunity is an important public health issue.

How Penny Per Page Might Work

computer.howstuffworks.com/penny-per-page.htm

The World Wide Web is known for its nearly unprecedented "free content." But can it stay that way? Learn how the penny-per-page revenue model might work.

How Astronauts Work

science.howstuffworks.com/astronaut.htm

Astronauts are adventurers and scientists who work in space. Learn who astronauts are and what they do in space and on Earth.

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