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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.
Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
![Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do](https://biology-forums.com/gallery/47/medium_12359_16_06_12_7_20_16.jpeg)
![Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do](https://biology-forums.com/gallery/47/medium_12359_26_01_13_3_54_52.jpeg)