Are some shadows darker and colder than others?

  • Thread starter deepthishan
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In summary, the conversation discussed the evidence for the existence of white holes and whether there are any observational proofs. It was mentioned that there is no direct evidence for white holes, just like there is no direct evidence for black holes. Some evidence for black holes has been observed, but specific characteristics like Hawking radiation have not been detected. Overall, there is currently no concrete evidence for the existence of white holes.
  • #1
deepthishan
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What is the evidence for the existence of a white hole?

Other than theoretical ones, are there any observational proofs?
 
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  • #2
That shadow on degobah was like really cold just ask luke skywalker so yes some shadows are colder than others
 
  • #3
Whoa, I think this thread was edited and changed...
Anyways, there is zero evidence of the existence of white holes.
 
  • #4
Drakkith said:
Whoa, I think this thread was edited and changed...
Anyways, there is zero evidence of the existence of white holes.

Of course, there's zero direct evidence for black holes as well. At most astronomers know that there are gravitational systems whose center must have an enormous mass (enough, according to GR to be a black hole) and that the center has no detectable emissions.
 
  • #5
I guess that depends on what you consider direct evidence to be.
 
  • #6
Drakkith said:
I guess that depends on what you consider direct evidence to be.

Well all we have now is a null result, it's NOT a big star at the center of a galaxy. But hallmarks of black holes specifically, things like Hawking radiation and such, have never been detected.
 

FAQ: Are some shadows darker and colder than others?

Are some shadows darker than others?

Yes, some shadows can appear darker than others. This is due to the amount of light that is being blocked by the object creating the shadow. The more light that is blocked, the darker the shadow will appear.

Can shadows vary in color?

Yes, shadows can vary in color depending on the color of the object creating the shadow and the color of the light source. For example, a red object may create a slightly red tinted shadow, and a blue light source may create a bluish tinted shadow.

Do shadows have different temperatures?

Yes, shadows can have different temperatures. This is because shadows are caused by the absence of light, and different surfaces can absorb and release heat at different rates, resulting in variations in temperature within the shadow.

Why do some shadows appear colder than others?

Some shadows may appear colder than others because of the color of the object creating the shadow. Darker colors tend to absorb more heat, making the shadow feel colder. In addition, the angle and intensity of the light source can also affect the perceived temperature of a shadow.

Can shadows be measured?

Yes, shadows can be measured using a variety of methods, such as using a photometer or a shadow length ratio calculator. These measurements can help determine the angle and intensity of the light source, as well as the size and shape of the object creating the shadow.

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