The mercury barometer was invented by

Options

A. Celsius
B. Fahrenheit
C. Torricelli
D. Bernoulli

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the inventor of the mercury barometer. A barometer is an instrument used to measure atmospheric pressure.

2. **Identifying the Options**: The options provided are:
- Option 1: Celsius
- Option 2: Fahrenheit
- Option 3: Torricelli
- Option 4: Bernoulli

3. **Recalling Historical Context**: The mercury barometer was invented in the 17th century. It is important to recall who was prominent in the field of physics and atmospheric pressure during this time.

4. **Identifying the Correct Inventor**:
- **Celsius** is known for the Celsius temperature scale.
- **Fahrenheit** is known for the Fahrenheit temperature scale.
- **Bernoulli** is known for his work in fluid dynamics.
- **Torricelli** is recognized for inventing the mercury barometer in 1643.

5. **Conclusion**: Based on the historical context and the contributions of each individual, the correct answer is **Option 3: Torricelli**.

6. **Final Answer**: The mercury barometer was invented by Evangelista Torricelli.

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