Peter Cooper Hewitt
Peter Cooper Hewitt

Celebrity Profile

Name: Peter Cooper Hewitt
Occupation: Inventor
Gender: Male
Birth Day: May 5, 1861
Death Date: Aug 25, 1921 (age 60)
Age: Aged 60
Birth Place: New York City, United States
Zodiac Sign: Taurus

Social Accounts

Height: in centimeters - N/A
Weight: in kg - N/A
Eye Color: N/A
Hair Color: N/A
Blood Type N/A
Tattoo(s) N/A

Peter Cooper Hewitt

Peter Cooper Hewitt was born on May 5, 1861 in New York City, United States (60 years old). Peter Cooper Hewitt is an Inventor, zodiac sign: Taurus. Find out Peter Cooper Hewittnet worth 2020, salary 2020 detail bellow.


Finding that his mercury-gas lamps gave off an unpleasing blue light, he decided to find uses for it outside the home; unfortunately for him, a better version appeared just two years after.

Does Peter Cooper Hewitt Dead or Alive?

As per our current Database, Peter Cooper Hewitt died on Aug 25, 1921 (age 60).

Net Worth

Net Worth 2020


Salary 2020

Not known

Before Fame

Finding that an electric current passed through a container of gas can create light, he joined other scientists of the mid-19th century in attempting to develop it into a practical device.

Biography Timeline


In 1901 he invented and patented a mercury-vapor lamp; a gas-discharge lamp that used mercury vapor produced by passing current through liquid mercury. His first lamps had to be started by tilting the tube to make contact between the two electrodes and the liquid mercury; later he developed the inductive electrical ballast to start the tube. The efficiency was much higher than that of incandescent lamps, but the emitted light was of a bluish-green unpleasant color, which limited its practical use to specific professional areas, like photography, where the color was not an issue at a time where films were black and white. For space lighting use, the lamp was frequently augmented by a standard incandescent lamp. The two together provided a more acceptable color. Later. in the 1930s. a fluorescent coating (phosphor) was added to the inside of the tube at General Electric, which produced more pleasing white light when it absorbed the ultraviolet light from the mercury. This was the fluorescent lamp, which is now one of the most widely used lamps in the world.


In 1902 Hewitt developed the mercury arc rectifier, the first rectifier that could convert alternating current power to direct current without mechanical means. It was widely used in electric railways, industry, electroplating, and high-voltage direct current (HVDC) power transmission. Although it was largely replaced by power semiconductor devices in the 1970s and 1980s, it is still used in some high power applications. In 1903, the degree of Honorary Doctorate of Science was conferred upon him by the Columbia University in recognition of his work.


In 1907 he developed and tested an early hydrofoil. In 1916, Hewitt joined Elmer Sperry to develop the Hewitt-Sperry Automatic Airplane, one of the first successful precursors of the cruise missile.

Family Life

Peter was born in New York City.

🎂 Upcoming Birthday

Currently, Peter Cooper Hewitt is 161 years, 3 months and 3 days old. Peter Cooper Hewitt will celebrate 162nd birthday on a Friday 5th of May 2023. Below we countdown to Peter Cooper Hewitt upcoming birthday.


Peter Cooper Hewitt trends


  1. Who is Peter Cooper Hewitt ?
  2. How rich is Peter Cooper Hewitt ?
  3. What is Peter Cooper Hewitt 's salary?
  4. When is Peter Cooper Hewitt 's birthday?
  5. When and how did Peter Cooper Hewitt became famous?
  6. How tall is Peter Cooper Hewitt ?
  7. Who is Peter Cooper Hewitt 's girlfriend?
  8. List of Peter Cooper Hewitt 's family members?

You might intereintereststed in

  1. Top 20 Inventor celebrities in British
  2. Top 20 Inventor celebrities in England
  3. Top 20 Inventor celebrities in France
  4. Top 20 Inventor celebrities in United States