crookes radiometer

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Word: Crookes Radiometer

Part of Speech: Noun

Definition: A Crookes radiometer is a scientific instrument that has a small paddlewheel inside a glass bulb. When the radiometer is exposed to light (especially sunlight), the paddlewheel spins. This happens because the light heats one side of the paddles more than the other, causing them to move.

Usage Instructions:

You can use "Crookes radiometer" when talking about science, light, or experiments. It is often found in physics or educational settings.

Example Sentence:

• "In our science class, we learned how a Crookes radiometer works by placing it in the sunlight and watching the paddles spin."

Advanced Usage:

In a more advanced context, you might discuss how the Crookes radiometer demonstrates principles of thermodynamics and the interaction between light and heat.

Word Variants:

• Radiometer: This is a broader term that refers to any device that measures radiation, but the term "Crookes radiometer" specifies this particular type.

Different Meanings:

• "Radiometer" can sometimes refer to devices used to measure other types of radiation beyond light, but in this context, it specifically relates to light and heat.

Synonyms:

• There are no direct synonyms for "Crookes radiometer," but you might use "light meter" in a very general sense, though it refers to something different.

Related Idioms and Phrasal Verbs:

While there aren’t specific idioms or phrasal verbs related directly to "Crookes radiometer," you can use phrases like "light up" (which means to illuminate or become bright) when talking about how light affects it.

Summary:

A Crookes radiometer is a fascinating scientific tool that visually demonstrates how light can create motion through heat differences.

Academic

Noun

1. electromagnetic radiometer consisting of a small paddlewheel that rotates when placed in daylight

Synonyms

• crookes radiometer