Samuel Pierpoint Langley

8.9

An American astronomer who invented a tool for measuring heat and helped design early airplanes

proper noun

: Samuel Pierpoint Langley

The invention of the bolometer is one of Samuel Pierpoint Langley's greatest achievements.

Examples

Aviation history recognizes Samuel Pierpoint Langley for his early efforts in aircraft design.
Samuel Pierpoint Langley made significant advances in the study of solar radiation.
The famous inventor Samuel Pierpoint Langley made significant contributions to aviation.
Did you know Samuel Pierpoint Langley invented the bolometer?
Aviation history recognizes Samuel Pierpoint Langley for his early efforts in aircraft design.
The invention of the bolometer is one of Samuel Pierpoint Langley's greatest achievements.
Did you know Samuel Pierpoint Langley invented the bolometer?

Synonyms

Langley

vsSamuel Pierpoint Langley

5 8.3

An American scientist who studies the stars, designs early flying machines, and invents the bolometer

uses the full personal name rather than the short family name

Surface Forms

Samuel Pierpoint Langley main

Morphology

Samuel + Pierpoint + Langley

This is a full proper name referring to a specific person; knowing the constituent names ('Samuel', 'Pierpoint', 'Langley') does not allow a B1 learner to infer the biographical meaning (astronomer and aviation pioneer). Proper names are referential rather than compositional, and their associated facts (profession, inventions) are lexicalized knowledge that cannot be derived from the parts, so the expression is opaque.

Etymology

Samuel Pierpoint Langley was an American scientist in the 1800s who invented the bolometer, a simple tool to 'measure heat' from the sun, and who also built early flying aircraft. Picture him watching sunlight with a small heat meter and then testing a flying model — that image helps explain why his name is linked to 'measuring heat' and 'early flight'.