We are not Psychic – It’s Physics Here!
We receive many questions daily where in questions based on dreams, love, relations etc. are asked.
We thought initially that those were posted by spammers. But the emails and posts were not from spam-bots but genuine IPs and persons. On analysis, it was found that those posts were made by people who thought that the site name as “AskPsychics” and thus they asked such questions. Some even misspell Psychic as Physic.
When they don’t get their answers, they come back to the site and start looking at the answered questions to find that the site is all about Physics and that there are no Psychichs here!
Thanks to our principle that we do not allow questions to be published directly. All questions posted via the Ask a Question link reach the email inbox of the admin and editors of the site. we scrutinize the question and are posted to the site only if it is related to Physics or education.
Once again I would like to announce -
We are PHYSICS People
-
Not Psychics
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Limitations of Homogenity
Paraser asked
“What are the limitations of homogenity?”
The question is acutually”What are the limitations of dimensional analysis?”
The dimensional analysis is based on the principle of homogenity of dimensions. The question is already discussed earlier HERE
Categories: Ask Physics, cbse, CBSE PHYSICS CLASS XI, doubt, General Tags: analysis, ask Physics, dimensional, dimensional analysis, dimensions, homogenity, physics, principle, question
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Relativity, Black Hole and some doubts
In the model of the big bang I would like to pose the following question. My understanding is that
1. The expansion of the universe is accelerating and
2. The radiation or shock wave to keep the analogy going is something we can measure.
My question is this. While we can rewind the clock to a single moment when the universe was infinity dense how do we know that this was a moment at all. Let me elaborate. As the universe expands could time or space time not also expand and if so than when the big bang occurred is something we cannot measure merely by rewinding the clock. If we are experiencing time at a given rate when the universe is at its current size would time not be being effected by the expansion also and if so would that mean the there was simply no start and no end to the universe? Perhaps the big bang is not as accurate as we may wish and perhaps it is our ability to comprehend that is limited. I propose there is no start or end to the universe it has always and will always be as it, and we, cannot exist without time and as such these two objects or things form a symbiotic relationship with each other. While the universe expands so does time and its effects are reduced in line with its expansion. Does this sound plausible and if not why?
Categories: Ask Physics Tags: black hole, clock, current, doubts, expansion, form, line, measure, model, question, radiation, rate, relationship, sound, space, space time, time, understanding, universe, wave
