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Lakshmi N
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Even though the neutrinos are massless and undetectable,how did the physicists established the existence of such particle?
simpatico said:After long research I came to the conclusion that actually neutrino IS Undetectable
they consider detection Indirect detection.: From something that happens (production of a neutron + gamma ray)
they deduce that they caught a neutrino.
ZapperZ said:Give an example of something that you consider to be a DIRECT detection, and I'll show you that it is an indirect detection!
Zz.
simpatico said:Hi zz, nice to hear from you.
Welcome!
REJOICE LAKSHMI, you caught an expert who is not on vacation
l
Now,zz,
when I catch a ray of light in my eye!
"So this is what you consider to be "direct"? Why is this different than neutrino detection?"
Kiril said:If you'll permit me to answer: The concept of validity does not apply to sense perception, as it does with any man made apparatus of detection(and interpretations from same). This is because the evidence of the senses(not inference from it, eg. bent stick) are the basis for any concept/conclusion which one uses to question their validity.
The Logical Positivsts and Descartes would have us believe otherwise, however they offer nothing but rationalization.
Kiril said:If you'll permit me to answer: The concept of validity does not apply to sense perception, as it does with any man made apparatus of detection(and interpretations from same). This is because the evidence of the senses(not inference from it, eg. bent stick) are the basis for any concept/conclusion which one uses to question their validity.
The Logical Positivsts and Descartes would have us believe otherwise, however they offer nothing but rationalization.
All this indirect chain you describe here is not related to what in physics is considered direct or indirect detection. You described the physiologic path of the signals in an organism.ZapperZ said:Oh good!
How do you think you detected that "ray of light in your eye"?
Do you realize that the photons hit the light cones at the back of your eyes, and then send out electrical impulses (i.e. motion of current) through your nervous system that then triggers the appropriate grey matter cells in your brain? Then, based on what evolution has given us in being able to understand such signals, you then say "Aha! I detected the light!"
So this is what you consider to be "direct"? Why is this different than neutrino detection?
Zz.
Kiril said:If you'll permit me to answer: The concept of validity does not apply to sense perception, as it does with any man made apparatus of detection(and interpretations from same). This is because the evidence of the senses(not inference from it, eg. bent stick) are the basis for any concept/conclusion which one uses to question their validity.
The Logical Positivsts and Descartes would have us believe otherwise, however they offer nothing but rationalization.
simpatico said:congrats kyril,
this is a most elegant way to say
"detection should not be confused with perception,cognition"
ZapperZ said:I'm not sure how what you wrote here answered my question. Are you saying that his example is the same, or not, with a neutrino detection, or any other detection (such as detecting current in a circuit) for that matter? A simple "yes" or "no", with the corresponding explanation that follows would suffice.
Zz.
simpatico said:hi folks,
if I read correctly the Guidelines, this thread is risking been hijacked.
Let's not forget we are here only to give dear Lahshmi evidence of existence of neutrinos.
He someone wants highlights on perception, cognition, epistemology, cognitive psychology, better open another thread
The Neutrino Dilemma is a problem in particle physics that arose in the mid-20th century when scientists were unable to detect neutrinos, a type of subatomic particle, using traditional methods. This led to doubts about their existence and sparked a race to find ways to detect and study these elusive particles.
Physicists used a variety of methods to establish the existence of neutrinos, including using large underground detectors, observing nuclear reactions, and studying the decay of other particles. The discovery of the neutrino's ability to change into different types also provided further evidence of their existence.
Neutrinos are incredibly small and have no electric charge, making them difficult to detect using traditional methods. They also interact very weakly with other particles, meaning they can pass through matter without leaving much of a trace.
The existence of neutrinos has significant implications for our understanding of the universe, as they are one of the most abundant particles in the cosmos. Their ability to change into different types also has implications for our understanding of the fundamental forces of nature.
The Neutrino Dilemma continues to impact scientific research today, as scientists continue to study neutrinos to better understand their properties and their role in the universe. New technologies and experiments are constantly being developed to further our understanding of these mysterious particles.