In 1864, the first barbiturate (barbituric acid) was synthesized.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
Ivory traders, c. 1912
Ivory trade in East Africa during the 1880s and 1890s
Woodpecker
What are examples of ideal forms?
Re-creation of Pheidias’s Huge Gold and Ivory Figure of Athena
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...