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CAT scans take X-ray imaging to a whole new level. Find out how a CAT scan machine uses "slices" to form a 3-D computer model of a patient's insides.

How does olestra work? Is it safe to eat foods containing olestra?

Stock options are offerred by employers as incentives to employees. Find out why stock options are so sought after by workers.

Frogs are like the canary in the coal mine for the state of the environment. HowstuffWorks looks at their endangered status.

Read about herbal remedies for cataracts and find out what foods you can add to your diet to maintain eye health.

Trailer spindles are essential to a successful towing experience. Learn more about trailer spindles at HowStuffWorks.

Need to know how to tow a two wheel drive vehicle? Learn everything about towing two wheel drive vehicles at HowStuffWorks.

Ever wonder how to become a volunteer military officer. Visit HowStuffWorks to learn how to become a volunteer military officer.

Apple cider is the signature beverage of autumn. Check out apple cider 101 and get all the facts and basics of this delicious fall beverage.

Are carrots really proven to aid eyesight? Get the science on the connection between carrots and eyesight and find out if it's really true.

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