Navigation Links
Francis Galton


Sir Francis Galton FRS (February 16, 1822January 17, 1911) was an English explorer, statistician, anthropologist, creator of modern eugenics (he coined the term), investigator of the human mind, founder of psychometrics, the science of measuring mental faculties.

Historiometry and statistics

He was born into the Darwin-Wedgwood family near Sparkbrook, Birmingham and was Charles Darwin's half first cousin, his mother and Darwin's father having been children of Erasmus Darwin by separate marriages. His father was Samuel Tertius Galton, son of Samuel "John" Galton. He was advised at a young age by Charles Darwin that he ought to "read Mathematics like a house on fire," and was very much influenced by Darwin's ideas of natural selection when they came into print.

His inquiries into the mind involved detailed recording of subjects' own explanations for whether and how their minds dealt with things such as mental imagery.

Galton's 1869 work, Hereditary Genius , popularised historiometry and also formed the beginning of his thoughts on eugenics and heredity. In statistics, Galton was the first to describe and explain the common phenomenon of regression toward the mean in the 1870s and 1880s. After examining forearm and height measurements, Galton introduced the concept of correlation in 1888. His statistical study of the probability of extinction of surnames led to the concept of Galton-Watson stochastic processes.

Fingerprint

The method of identifying criminals by their fingerprints had been introduced in the 1860s by William Herschel (civil servant) in India, but their potential use in forensic work was first proposed by Dr Henry Faulds in 1880. In a Royal Institution paper in 1888 and three books (1892, 1893 and 1895) Galton wrote about the technique (inadvertently sparking a controversy between Herschel and Faulds that was to last until 1917), identifying common pattern in fingerprints and devising a classification system that survives to this day. He also estimated the probability of two persons having the same fingerprint and studied the heritability and racial differences in fingerprints.

Galton invented the Quincunx, also known as the bean machine as a tool for demonstrating the law of error and the normal distribution. He also invented the questionnaire, regression analysis, composite photography (layering images upon one another to create what he considered a 'mean' image), the correlation, and twin studies. His statistical heir, Karl Pearson, wrote a three-volume biography of Galton after his death.

He also developed early theories of ranges of sound and hearing.

Galton was knighted in 1909, and died in Haslemere, Surrey.

External link


The National Portrait Gallery has 6 portraits of Galton


'"/>


(Date:9/30/2014)... environment on Earth, but when the climate changes and ... limit. The amount of time needed to adjust to ... cope in the future, reveals a new study from ... scientific journal Proceedings of the Royal Society B ... levels of greenhouse gases in the atmosphere. The greenhouse ...
(Date:9/30/2014)... that a new class of chemical compounds makes ... have also pinpointed the relevant target enzyme, thus ... , Researchers led by LMU,s Professor Angelika Vollmar ... Mnchen have identified a class of chemicals that ... against malignant tumors. The compound is itself non-toxic, ...
(Date:9/30/2014)... 2014  Spectra Automation, a trusted supplier ... and power generation industries, announced today the ... an easy-to-use and cost-effective data collection, analysis ... laboratories. Most upstream process ... systems. Accessing and consolidating data from these ...
Breaking Biology News(10 mins):Shape up quickly -- applies to fish, too! 2Cancer therapy: Driving cancer cells to suicide 2Spectra Automation Introduces RECONN Bioprocess Manager 2
... 2010 The approach the U.S. Environmental Protection Agency ... anaerobic lagoons that treat manure contains errors and may ... scientists from the University of Missouri. Anaerobic lagoons ... application to crops as a fertilizer. Methane, one byproduct ...
... in Spanish . , A laboratory milling device ... Research Service (ARS) scientists and an industry cooperator. ... wheat that are not visible to the eye or that ... by National Manufacturing, Inc. (NMI), of Lincoln, Neb., was based ...
... Using an off-the-shelf digital camera, Rice University biomedical engineers ... Cancer Center have created an inexpensive device that is ... from healthy cells simply by viewing the LCD monitor ... of the first tests of the camera were published ...
Cached Biology News:Scientists question EPA estimates of greenhouse gas emissions 2ARS, industry cooperation yields device to detect insects in stored wheat 2Off-the-shelf cancer detection 2
Other biology definitionOther Tags