Principle of material objectivity
Okay, so imagine you have a toy car, and you want to know how fast it can go. You ask your friend to help you measure it, and both of you use different tools.
Your friend uses a stopwatch and measures the time it takes for the car to travel a certain distance. You, on the other hand, use a ruler to measure how far the car travels in a certain amount of time.
Now, if both of you are doing your job correctly, you should get the same answer for how fast the car is going. This is because the car's speed is a property of the car itself, and shouldn't change depending on how you measure it.
This is what we mean by the principle of material objectivity. It basically says that the properties of an object (like its size, shape, weight, or speed) should be the same no matter who is observing or measuring them.
So, if someone else comes along and measures the car's speed in a different way, they should get the same answer as you and your friend did. This way, we can be sure that our measurements are accurate and that we're all talking about the same thing.
Think of it like a recipe. If you follow the recipe correctly, the cake should taste the same no matter who makes it. In the same way, if we all measure the properties of an object correctly, we should always get the same result.
Your friend uses a stopwatch and measures the time it takes for the car to travel a certain distance. You, on the other hand, use a ruler to measure how far the car travels in a certain amount of time.
Now, if both of you are doing your job correctly, you should get the same answer for how fast the car is going. This is because the car's speed is a property of the car itself, and shouldn't change depending on how you measure it.
This is what we mean by the principle of material objectivity. It basically says that the properties of an object (like its size, shape, weight, or speed) should be the same no matter who is observing or measuring them.
So, if someone else comes along and measures the car's speed in a different way, they should get the same answer as you and your friend did. This way, we can be sure that our measurements are accurate and that we're all talking about the same thing.
Think of it like a recipe. If you follow the recipe correctly, the cake should taste the same no matter who makes it. In the same way, if we all measure the properties of an object correctly, we should always get the same result.