davisson-germer experiment
Very lowTechnical/Scientific (Physics)
Definition
Meaning
A 1927 physics experiment that demonstrated the wave nature of electrons by observing electron diffraction from a nickel crystal, providing direct evidence for the de Broglie hypothesis.
A foundational experiment in quantum mechanics that confirmed matter-wave duality, establishing that particles like electrons exhibit wave-like properties. It is historically significant as one of the first experimental confirmations of quantum theory.
Linguistics
Semantic Notes
Always capitalized as it is a proper noun referring to a specific historical experiment named after its principal investigators, Clinton Davisson and Lester Germer. It functions as a singular noun phrase.
Dialectal Variation
British vs American Usage
Differences
Spelling and terminology are identical. Pronunciation may differ slightly. The term 'experiment' might be followed by 'of 1927' more commonly in British texts for historical context.
Connotations
Identical—carries connotations of foundational quantum physics, empirical proof, and Nobel Prize-winning work (Davisson shared the 1937 Nobel Prize in Physics).
Frequency
Extremely rare in general discourse. Used with equal, low frequency in British and American academic physics contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [ADJECTIVE] Davisson-Germer experiment demonstrated [NOUN PHRASE].Following the Davisson-Germer experiment, [CLAUSE].[SCIENTIST] cited the Davisson-Germer experiment as evidence for [THEORY].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “This isn't exactly a Davisson-Germer experiment (used metaphorically to indicate a situation is not a clear, foundational demonstration).”
Usage
Context Usage
Business
Virtually never used.
Academic
Exclusively used in physics, history of science, and quantum mechanics textbooks and lectures.
Everyday
Never used.
Technical
Core term in advanced physics discussions of quantum mechanics history and electron diffraction.
Examples
By Part of Speech
verb
British English
- To 'Davisson-Germer' is not a standard verb.
American English
- To 'Davisson-Germer' is not a standard verb.
adverb
British English
- Not used adverbially.
American English
- Not used adverbially.
adjective
British English
- The Davisson-Germer-type setup was replicated in the lab.
- It was a Davisson-Germer-style demonstration.
American English
- They built a Davisson-Germer-like apparatus.
- The findings had Davisson-Germer significance.
Examples
By CEFR Level
- The Davisson-Germer experiment was a very important discovery in physics.
- The Davisson-Germer experiment provided the first clear evidence that electrons can behave like waves.
- By meticulously analysing the diffraction patterns from nickel crystals, the Davisson-Germer experiment empirically validated de Broglie's revolutionary hypothesis of matter waves.
Learning
Memory Aids
Mnemonic
Davisson and Germer made electrons GLIMMER, proving they act as a wave, not just a simmering particle.
Conceptual Metaphor
A KEY EXPERIMENT (unlocking the door to quantum mechanics); A FOUNDATIONAL PILLAR (of modern physics).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as just "эксперимент Дэвиссона-Гермера" without the hyphen and capitalisation in English.
- Do not confuse with the later 'Stern–Gerlach experiment' (which deals with spin).
- Ensure 'experiment' remains singular, not pluralised.
Common Mistakes
- Misspelling as 'Davidson-Germer' or 'Davison-Germer'.
- Using lowercase ('davisson-germer experiment').
- Treating it as a general term rather than a specific proper noun.
Practice
Quiz
What did the Davisson-Germer experiment primarily demonstrate?
FAQ
Frequently Asked Questions
It was a 1927 physics experiment that showed electrons diffract like waves when fired at a nickel crystal, proving de Broglie's theory that matter has wave-like properties.
It was the first direct experimental confirmation of the wave nature of electrons, a cornerstone of quantum mechanics, and earned Clinton Davisson a share of the Nobel Prize.
Clinton Davisson and his assistant Lester Germer at Bell Labs in the United States. An independent confirmation was made around the same time by George Paget Thomson.
Yes, it is a classic demonstration reproduced in advanced undergraduate physics laboratories to teach quantum mechanics and electron diffraction principles.