单位转换
已验证计算器，公式透明
Celsius to Delisle Converter.
Converts a temperature from degrees Celsius to degrees Delisle, a historical temperature scale where water boils at 0 °De and freezes at 150 °De.
您的输入
工作原理
- 1
Enter the temperature in degrees Celsius.
- 2
Subtract the Celsius value from 100.
- 3
Multiply the result by 1.5 to get degrees Delisle.
(100 - celsius) * 1.5常见问题
What is the Delisle scale?
The Delisle scale (°De) is a historical temperature scale where water boils at 0 °De and freezes at 150 °De. It was invented by French astronomer Joseph-Nicolas Delisle in 1732.
How do I convert Delisle back to Celsius?
To convert from Delisle to Celsius, use the formula: °C = 100 - (°De / 1.5). For example, 50 °De equals 100 - (50/1.5) ≈ 66.67 °C.
Why is the conversion factor 1.5?
The Delisle scale divides the interval between boiling and freezing (100 °C) into 150 degrees, so each degree Delisle is 2/3 of a degree Celsius. Thus, °De = (100 - °C) × 1.5.
工作原理
Converts a temperature from degrees Celsius to degrees Delisle, a historical temperature scale where water boils at 0 °De and freezes at 150 °De.
- Enter the temperature in degrees Celsius.
- Subtract the Celsius value from 100.
- Multiply the result by 1.5 to get degrees Delisle.
公式
此计算器背后的数学公式，供您核对结果。
Celsius to Delisle
Subtract the Celsius temperature from 100 (the boiling point of water in Delisle) and multiply by 1.5 to account for the scale difference.
Example:
Input: °C = 20
Calculation: (100 - 20) × 1.5 = 80 × 1.5
Result: 120 °De
实际应用场景
此计算在日常生活中的应用。
Historical research
Convert temperatures from historical scientific records that used the Delisle scale.
Example: Reading a 1730s thermometer reading of 80 °De.
Educational demonstrations
Teach students about alternative temperature scales and their relationships.
Example: Showing that 0 °C equals 150 °De.
Curiosity and comparison
Understand how different scales represent the same physical temperature.
Example: Comparing a typical room temperature of 22 °C to its Delisle value.
提示与常见错误
Tips
- Remember that the Delisle scale is inverted: higher Celsius means lower Delisle.
- For quick mental estimates, each 10 °C change corresponds to a 15 °De change.
- Use the formula °De = (100 - °C) × 1.5 for exact conversions.
- The freezing point of water is 150 °De, and the boiling point is 0 °De.
Common Mistakes to Avoid
- Forgetting to subtract from 100 first; the formula is not simply °C × 1.5.
- Confusing the direction: a higher Celsius value gives a lower Delisle value.
- Using the wrong factor; it's 1.5, not 1.8 (which is for Fahrenheit).
假设与限制
- Use the stated inputs and units.
- Results are estimates for planning and education.
- Check measurements and source data before making an important decision.