how will you show that our sense of touch is not a reliable method to measure the temperature
Answers
Answer:
There are two reasons for it
Explanation:
One reason is that we can’t feel the temperature of an object, we feel the temperature of of our own flesh. When you touch something hot, it heats up your skin, and that heat in your skin is what you feel. That may seem trivial, but the problem is that your body is constantly circulating blood into your flesh, which means that, if you touch something with a low thermal conductivity (styrofoam, for example), the temperature of your own blood will tend to overwhelm the temperature flow from the object, making it impossible to accurately gauge the temperature of the object itself.
The other reason is that it isn’t really accurate to say that we feel heat in our skin. We actually feel heat flow. Our senses tend to calibrate to whatever condition we’re in, so if you touch something warmer than your hands, that thing will feel warm, but it may just feel that way because your hands were cold. A classic experiment is to soak one hand in a bowl of very warm water and the other hand in a bowl of cold water. Then stick both hands into a bowl of room temperature water. One will feel hot and the other will feel cold, even though they’re at the same temperature. Because your senses can only sense heat flow, your skin temperature and the conductivity are factors in how something feels, not just the temperature of the object.
Our body just isn’t designed to determine objective temperatures. We can only tell how it feels, not what it really is.
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Answer:
A classic experiment is to soak one hand in a bowl of very warm water and the other hand in a bowl of cold water. Then stick both hands into a bowl of room temperature water. One will feel hot and the other will feel cold, even though they're at the same temperature.