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The impression conveyed by polls that something is important to the public when actually it is not.

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Q: What is the illusion of saliency?
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Continue Learning about General Science

What type of science is magic tricks?

magic is the art of illusion.


What are fossil fuels what are they used for and why are they considered non renewable?

That oil comes from fossils is a myth, disproven by the Russians long ago, to propagate the illusion of scarcity and 'peak oil.' Seek 'The Origins of Oil.'


When a glass rod is immersed in the colourless liquid the glass rod seems to be deappeared why?

Hey! The reason it seems to disappear is because of the refraction and absorption of light and colour. When light enters the colourless liquid, colour is obviously absorbed. The light waves refract ("bounce") off the glass test tube and leave the glass beaker (containing the colourless liquid). Because the liquid and solid are the same colour, it creates the illusion of the test tube disappearing.


Why should hypothesis should be testable?

Hypothesis testing is how science progresses. Scientists come up with hypotheses (pl. for hypothesis) based on their observations and what is Known to be true (i.e. Laws of Physics...like gravity). Hypotheses are designed to answer a question and, by definition, MUST be DISprovable. If a hypothesis cannot be disproven, it has no value. For example, if I look outside and then say "I see the sky is blue"...that is not a hypothesis, it is an observation (or maybe a fact...albeit an optical illusion). However, if I look out the window and say "the sky ALWAYS appears blue"....That is a hypothesis, because it is testable and can be disproven, since tomorrow it might be gray.


Why are the answers that flow from a scientific approach more reliable than those based on intuition and common sense?

Many people like to believe that they have some instinctive or built-in understanding of the world which infallibly leads them to make correct conclusions based on intuition and common sense, but this is an illusion. There are many things in this world that cannot be understood merely on the basis of common sense. The results of quantum mechanics, for example, fly in the face of what we expect on the basis of common sense. The actual complexity of the universe exceeds what we are going to pick up on the basis of our normal, mundane lives. People who depend upon common sense are often wrong, sometimes catastrophically wrong.