For adults 18 and older, a normal resting heart rate is between 60 and 100 beats per minute (bpm), depending on the person’s physical condition. For children ages 6 to 15, the normal resting heart rate is between 70 and 100 bpm. Athletes and those in excellent physical condition can have resting heat rate of 40 bpm.
J. M. Barrie did not invent the name Wendy for his 1904 play Peter Pan, the Boy Who Wouldn’t Grow Up (the book form of the story, Peter and Wendy, was published in 1911). He did popularize it, though. Barrie apparently was inspired to use the name by a young friend named Margaret Henley, the daughter of writer William Henley. Margaret, who died around 1895 at age 6, called Barrie her “friendy.” Since she couldn’t pronounce her Rs at the time, the word came out “fwendy,” or “fwendy-wendy,” in some versions of the story. But we have absolute proof that there were earlier Wendys, thanks to the just-released 1880 U.S. Census and the 1881 British Census. These documents show that the name Wendy, while not common, was indeed used in both the U.S. and Great Britain throughout the 1800s.
When there was a cotton shortage during World War I, Kimberly-Clark developed a thin, flat cotton substitute that the army tried to use as a filter in gas masks. The war ended before scientists perfected the material for gas masks, so the company redeveloped it to be smoother and softer, then marketed Kleenex as facial tissue instead.
Horsepower (hp) is unit of measurement of power, the rate at which work is done. The most common conversion factor, especially for electrical power, is 1 hp = 746 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses.