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What did our ancestors eat to clean their teeth?

recipes.howstuffworks.com/ancestors-eat-to-clean-teeth.htm

Are you wondering what did our ancestors eat to clean their teeth? Check out this article and learn what our ancestors ate to clean their teeth.

The Most Expensive Metal in the World Isn't Gold or Platinum

science.howstuffworks.com/most-expensive-metal.htm

Precious metals are not just shiny and attractive; these elements are also incredibly valuable, often used in a wide range of industries from jewelry to high-tech applications.

Hematite, a Shape-shifting Mineral From the Stone Age

science.howstuffworks.com/environmental/earth/geology/hematite.htm

You can find hematite found all over Earth, as well as Mars. The bloodstone the main source of iron and is also used in jewelry and painting.

How to Tell Someone They Sound Racist

people.howstuffworks.com/how-to-tell-someone-sound-racist.htm

Not speaking up when witnessing racism sends a message that racism is OK. Learn how to tell someone they sound racist.

Cadmium: The Highly Toxic Metal That Powers the World

science.howstuffworks.com/cadmium.htm

Cadmium is a natural metal and the leading component in rechargeable batteries and solar cells. It is also highly toxic and heavily regulated.

How Nanotechnology Works

science.howstuffworks.com/nanotechnology.htm

Nanotechnology is so new, no one is really sure what will come of it. Even so, predictions range from the ability to reproduce things like diamonds and food to the world being devoured by self-replicating nanorobots.

1956-1961 Studebaker Hawk

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The Studebaker Hawk was a sporty car that drew mixed reviews from the public. See pictures and learn the history of the 1956-1961 Studebaker Hawk.

What is a cavity in a tooth? Why do they drill it?

health.howstuffworks.com/wellness/oral-care/problems/question106.htm

What is a cavity in a tooth? Why do they drill it? If a cavity is a hole, why would you drill it to make the hole even bigger?

Baby's Busy Day Quilt Pattern

lifestyle.howstuffworks.com/crafts/quilting/babys-busy-day-quilt-pattern.htm

Keep baby (and mom) happy with this adorable Baby's Busy Day Quilt. Download the free quilt pattern only at HowStuffWorks.

How U.S. Marshals Work

people.howstuffworks.com/us-marshal.htm

The U.S. Marshals Service is the oldest law enforcement agency in the nation. Learn about famous U.S. Marshals and the duties and history of the U.S. Marshals.

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