What Does a Draper Do?
Draper was a great philosopher and historian. His book "History of the Conflict between Religion and Science", in the era of a more conservative society at the time, questioned the scientific model based on religion.
Draper
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- Chinese name
- Draper
- Foreign name
- Draper, John Willinam
- Country of Citizenship
- England America
- place of birth
- St Helens, Lancashire, UK
- date of birth
- May 5, 1811
- Date of death
- January 4, 1882
- Occupation
- chemist
- Draper was a great philosopher and historian. His book "History of the Conflict between Religion and Science", in the era of a more conservative society at the time, questioned the scientific model based on religion.
- Name: Draper, John Willinam
- Country or Region: United Kingdom-United States
- Subject: Chemist
- invent:
- Draper, John Willinam British-American chemist. Born in St. Helens, Lancashire, England on May 5, 1811; died on January 4, 1882, in Hastings, Hudson River, New York. Draper studied at the University of London and moved to the United States in 1833. He received his Ph.D. from the University of Pennsylvania in 1836, taught chemistry at New York University in 1838, and eventually became the dean of the academy. Draper enjoys a good reputation in the medical profession, but his most famous achievement is thousands of miles away from medical work. He discovered that light can cause chemical melon due to the absorption of light energy by molecules. This shows that he was the pioneer of photochemistry. He also noticed that all matter emits a dim red light at about 525 ° C (this temperature is called the "Draper Point"). As it rises further, the wavelength range of visible light gradually widens until it emits white heat. In 1847, he published an experiment in this area, which finally led to Wien's quantitative research results half a century later. His interest turned from photochemistry and spectroscopy, and it was said that his son Henry Draper * first took the spectrum of the stars. However, Huggins * 's achievements soon surpassed him in this regard. Draper was one of the first to develop photomicrography. He took pictures of what he saw under a microscope and copied it in a physiological work he wrote in 1856.