# George Atwood

> English mathematician (1745–1807)

**Wikidata**: [Q441174](https://www.wikidata.org/wiki/Q441174)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/George_Atwood)  
**Source**: https://4ort.xyz/entity/george-atwood

## Summary
George Atwood (1745–1807) was an English mathematician, physicist, and inventor best known for creating the Atwood machine, a classroom apparatus used to illustrate the principles of classical mechanics. A Fellow of the Royal Society and recipient of the Copley Medal, he also contributed to the fields of astronomy and fluid dynamics. His legacy includes the naming of the Atwood number in fluid mechanics and the lunar crater Atwood.

## Biography
- Born: 1745
- Nationality: English
- Education: Westminster School; Trinity College, University of Cambridge
- Known for: Invention of the Atwood machine; Atwood number
- Employer(s): Exchequer
- Field(s): Mathematics, Physics, Astronomy, Invention

## Contributions
- **Atwood Machine:** Invented a device used as a classroom demonstration to illustrate principles of classical mechanics.
- **Atwood Number:** Defined a scaled density difference of two fluids, a concept utilized in fluid dynamics.
- **Swinging Atwood's Machine:** Developed a variation of the Atwood machine that incorporates a pendulum.
- **Government Service:** Affiliated with the Exchequer, the Department of the British government responsible for taxation.
- **Scientific Recognition:** Elected as a Fellow of the Royal Society and awarded the Copley Medal for his scientific work.

## FAQs
**What is the Atwood machine?**
The Atwood machine is a device invented by George Atwood used to illustrate the principles of classical mechanics, often serving as a standard classroom demonstration.

**Where did George Atwood receive his education?**
He attended Westminster School and Trinity College, which is a constituent college of the University of Cambridge in England.

**What awards did George Atwood receive?**
He was elected a Fellow of the Royal Society and was a recipient of the Copley Medal, an award given by the Royal Society of London.

**What is the Atwood number?**
The Atwood number is a term referring to the scaled density difference of two fluids, named after George Atwood.

**What roles did George Atwood hold?**
In addition to being a mathematician and physicist, he was an inventor, astronomer, and chess player, and was affiliated with the British Exchequer.

## Why They Matter
George Atwood matters because his inventions provided foundational tools for physics education that are still in use today. The Atwood machine remains a primary method for demonstrating Newtonian mechanics in classrooms. Furthermore, his work in fluid dynamics led to the Atwood number, a key parameter in analyzing the behavior of fluids with different densities. His recognition by the Royal Society, including the Copley Medal, underscores the significance of his contributions to science during his lifetime.

## Notable For
- Invention of the Atwood machine for demonstrating classical mechanics.
- Definition of the Atwood number regarding fluid density differences.
- Creation of the Swinging Atwood's machine, a pendulum variation of his original device.
- Election as a Fellow of the Royal Society.
- Recipient of the Copley Medal.
- The lunar crater "Atwood" is named after him.
- Affiliation with the Exchequer (British government taxation department).

## Body
### Early Life and Education
George Atwood was born in 1745 and was an English national by birth. His educational background includes attendance at Westminster School, a public school in Westminster, London, England. He subsequently matriculated to Trinity College, a constituent college of the University of Cambridge in England.

### Professional Affiliations and Roles
Atwood was identified as a mathematician, physicist, inventor, astronomer, and chess player. Professionally, he held an affiliation with the Exchequer, which is the Department of the British government responsible for taxation. His involvement in the scientific community was marked by his election as a Fellow of the Royal Society, an English learned society for science established in 1660. His contributions were further recognized when he was awarded the Copley Medal, an honor instituted by the Royal Society in 1731.

### Scientific Inventions and Concepts
Atwood's most enduring contribution is the Atwood machine, a device he invented. This machine serves as a classroom demonstration used to illustrate the principles of classical mechanics. A variation of this device, known as Swinging Atwood's machine, incorporates a pendulum. Beyond mechanics, Atwood's work extended into fluid dynamics, where he defined the Atwood number, representing a scaled density difference of two fluids.

### Legacy and Recognition
George Atwood died in 1807. His influence on science is preserved through the continued use of his mechanical devices in education and the application of the Atwood number in physics. His legacy is also commemorated in the field of astronomy; a lunar crater bears the name "Atwood." He is remembered as a key figure in the scientific community of the United Kingdom of Great Britain and Ireland, the historical sovereign state existing during his lifetime.

## References

1. Integrated Authority File
2. MacTutor History of Mathematics archive
3. Find a Grave
4. [Award winners : Copley Medal. Royal Society](https://docs.google.com/spreadsheets/d/1dsunM9ukGLgaW3HdG9cvJ_QKd7pWjGI0qi_fCb1ROD4/pubhtml?gid=1336391689&single=true)
5. International Standard Name Identifier
6. Art UK painters database
7. G. Atwood. Open Library
8. Faceted Application of Subject Terminology
9. chessgames.com
10. Gran Enciclopèdia Catalana
11. Czech National Authority Database
12. Freebase Data Dumps. 2013
13. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=Atwood%20George)
14. IdRef
15. Virtual International Authority File