Results continued... The chart below shows the normal range of a resting heart rate (pulse rate after resting 10 minutes) in beats per minute, according to age. Many things can cause changes in your normal heart rate, including your age, activity level, and the time of day.
Yongle Encyclopedia. The Yongle Encyclopedia (Traditional Chinese: æ°¸æ¨å¤§å¸; Simplified Chinese: æ°¸ä¹å¤§å¸; pinyin: YÇnglÃ¨ DÃ diÇn; literally âThe Great Canon [or Vast Documents] of the Yongle Eraâ) was a Chinese compilation commissioned by the Chinese Ming Dynasty Emperor Yongle, in 1403. More than 2,169 scholars worked on the transcription.
Watches evolved from portable spring driven clocks, which first appeared in 15th-century Europe. Portable timepieces were made possible by the invention of the mainspring in the early 15th century. Nuremberg clockmaker Peter Henlein (or Henle or Hele) (1485-1542) is often credited as the inventor of the watch. He was one of the first German craftsman who made clock-watches (taschenuhr), ornamental timepieces worn as pendants, which were the first timepieces to be worn on the body. His fame is based on a passage by Johann Cochlaeus cochlÃ¤us in: 1511