john tyndall
Học thuậtThân thiện
Definition
- Proper noun:
- A British physicist: John Tyndall was a 19th-century scientist born in Ireland. He is renowned for his experimental work on the properties of gases and the atmosphere, including studies on heat absorption, gas transparency, and sound transmission. He provided the first scientific explanation for the blue color of the sky.
Usage Examples
- Proper noun:
- John Tyndall's experiments on radiant heat were groundbreaking for his time.
- The phenomenon of why the sky is blue was explained by John Tyndall.
Advanced Usage
- "Tyndall effect": A scientific phenomenon named after John Tyndall. It refers to the scattering of light by colloidal particles or particles in a fine suspension, causing the path of a light beam to become visible.
- The blue color of some eyes and the haze in smoky air can be attributed to the Tyndall effect.
Variants and Related Words
- Tyndallization (n): A historical sterilization process involving intermittent heating, named after John Tyndall's related work on bacteria and spontaneous generation.
- Tyndallization is an old method for sterilizing heat-sensitive biological media.
Synonyms
- Physicist: A scientist who studies physics.
- Scientist: A person engaged in systematic activity to acquire knowledge.
Related Phrases
- Tyndall beam: A visible beam of light scattered by particles, demonstrating the Tyndall effect.
- The dust in the room made the Tyndall beam from the projector clearly visible.
Related Idioms
(No common idioms are directly derived from the name 'John Tyndall'. The primary legacy is in scientific terms like the 'Tyndall effect'.)
Noun
- British physicist (born in Ireland) remembered for his experiments on the transparency of gases and the absorption of radiant heat by gases and the transmission of sound through the atmosphere; he was the first person to explain why the daylight sky is blue (1820-1893)