Science Matters!

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Q801 - I remember an experiment where thousands of gallons of water were put into a cave deep underground. What was the experiment? Did it work?: Answer provided by Lawrence Tuppen
Q802 - I'm told the theories of Quantum Mechanics and Relativity contradict one another at some level. Where do these two theories clash?: Answer provided by Lawrence Tuppen
Q803 - Are there any blue shifted galaxies (i.e., galaxies heading toward us)?: [No Answer Yet - Do You have a candidate answer?]
Q804 - Is the curvature of space real? or is it simply a mathematical representation?: Answer provided by Lawrence Tuppen

Answers -

I remember an experiment where thousands of gallons of water were put into a cave deep underground. What was the experiment? Did it work?

This worked so well that it is no longer an experiment but is a standard instrument. These tanks are used to detect neutrinos. These are very long lived particles because they do not often react with anything. Think of neutrinos as the gold of the particle world. A detector sensitive enough to see a particle event triggered by a neutrino will also detect billions of other events triggered by cosmic rays, light, heat and so on. The detector tank of water, or cleaning fluid or something, is buried deep underground to shield it from all these other events. Because more than 99 percent of neutrinos pass right through the Earth without reacting with anything, your chance of seeing a reaction is just the same deep underground as at the surface. There are several such detectors in the world. They worked well enough to count the number of neutrinos from a recent supernovae event, enabling the astronomers to check out their theories.

12 May 96 - Lawrence Tuppen - rbd90@dial.pipex.com

I'm told the theories of Quantum Mechanics and Relativity contradict one another at some level. Where do these two theories clash?

[No answer yet - Do you have a candidate answer? See Below]

Are there any blue shifted galaxies (i.e., galaxies heading toward us)?

[No answer yet - Do you have a candidate answer? See Below]

Is the curvature of space real? or is it simply a mathematical representation?

[No answer yet - Do you have a candidate answer? See Below]

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