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In 1864, the first barbiturate (barbituric acid) was synthesized.
Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.