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DNA Bar Codes
Scientists are using a small piece of DNA as a molecular bar code, a unique identifier to separate organisms into species.
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- Humans
From the November 24, 1934, issue
The 1934 Nobel Prize in chemistry is awarded, Jupiter's great red spot is explained, and a polar ice cap shivers in the wind.
- Humans
Imagination Factory
Looking for creative ways to recycle materials? This imaginative Web site for kids focuses on how to make art using materials that most people throw away.
