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studiot last won the day on July 15

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About studiot

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    Somerset, England
  • Favorite Area of Science
    applications of physical sciences
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    Semi Retired Technical Consultant
  1. I note you stated electrostatic force and field. I further assume you are extending your earlier enquiry as to why the electron does not 'fall' 'into the nucleus. I was mulling over a reply to this when you posted this new thread. OK so Sensei is totally correct, those are the static equations. But I think they are of no use to you because you are (or should be) looking for and equation of motion. Earnshaw's theorem (1842) states that any system of more than one charge must be in motion (and you have two in your system). This and the classical consideration leads to an answer to your earlier thread and this one, if you are interested. The way to handle this is not to consider forces but to consider potentials and develop an equation of motion of one charge under the influence of the field of the other. This is done both in classical mechnaics and the Schrodinger equation (and also the Dirac relativistic equation). Do you wish to take this further?
  2. Is there a rational reason for religion?

    Now I am even more confused. Harikrish, but you have stated they are a believer. So what do they believe in and what does that mean in relation to the OP, which is about rational thinking, not belief. Strange, how can you not believe in religion when it is on (nearly) every corner? I assure you it exists. Yet this is entirely unrelated to the validity of any religion or the rational for it.
  3. What happened to the riverwall?

    Yes some old human relic may be uncovered. I'm sure there are no natural cavities in the gravel and marl of the river bed, which is in the middle of its flood plain extending at least half a kilometre on both sides. Ghideon, I remember the refurbishment of the old (13 century) packhorse bridge in Trowbridge, which I underpinned in the 1970s. A surprise then was the old Roman oak foundations (piles and cross beams) that were in better condition that the stones of the walls (Bath stone). It was extremely difficult to remove these oak foundations, jack hammers etc just bounded off, unlike with stones.
  4. Can you believe in evolution and in god?

    Well maybe for some Christians, but not all. I can remember being taught (in school no less) the points of agreement between the flow of the theory of evolution and the history of general events (ie specialist Jewish 'history' aside) in the Bible. There are many, although there are also differences and outright oppositions. Is there some good reason why you refuse to discuss my points? Should I report this? I also commented that believe is the wrong word to apply to evolution. Notice that Strange used the words 'accept' evolution.
  5. Can you believe in evolution and in god?

    I thought the concensus (here) was that the two are not mutually exclusive. That is certainly my view. However since there are two independent propositions conjoined there are at least five possibilities. Both are believed Neither are believed One is believed The other is believed. Some other view. This is my view since I don't care about God and I further think that evolution is neither complete nor all encompassing. That of course ignores the semantic conflict between the concepts of belief and the scientific method insofar as it is possible to 'believe' in evolution. I further consider it likely that humanity will divide into five camps represented by these divisions.
  6. What happened to the riverwall?

    Not often, perhaps once in 25 years or so. The wall has stood several hundred years. The failed section of wall appears to have gone down and moved to the left, parallel to the line of the riverwall, - downriver - both about 75mm. It doesn't seem to have rotated in any direction or displaced into the river at right angles to the line of the riverwall. The crack appears sensibly of constant width. One thing to note is that this side of the river is very shallow and slow running. Looking at the downstream picture you can see the gravel islands that collect on this side. This is surprising since the river scour will be least on this side. There is nothing to suggest the earth behind the wall has become active. If active earth pressure developed, it would be greatest at the bottom so the wall would have rotated outwards at the bottom.
  7. Is there a rational reason for religion?

    What, please, is a non religious believer?
  8. What happened to the riverwall?

    Thank you for the reply. I don't know the answer, hopefully we will find out when they pump out the cofferdam. However the movement of the wall suggests one thing but the stability of the ground behind it suggests something else.
  9. Can you believe in evolution and in god?

    Yes the Bible contains many self contradictions, where one passage contradicts another.
  10. Can you believe in evolution and in god?

    Whilst I don't quite agree with you, the evolution of God is an interesting idea that does not deserve minus points IMHO so +1 to compensate. Bender, I don't see it is relevant who wrote the parts about sending the flood or Jesus, or any other part for that matter. God is supposedly a long lived being to say the least of it! So no one human could write it all. Harikrish, just because it was 'written' in the 'Bible' does not prove anything.
  11. Mankind and his gps

    There may be more behind this than you realise, though proper research is the way forward. It is OK to speculate as to what might be the consequences, but experiment must lead the way. I say this because last week I was (half) listening to a BBC programme about research being done on memory and spatial awareness. The researchers (Oxford University I think) discovered a section of the brain which greatly increases activity when we are thinking about spatial/location information and seems to tuck away this along with situational information into the long term memory. Apparantly we remember things better if we can associate location with a subject, recognised by some memory training techniques. The researchers were able to show that if the location part is suppressed for some reason the situational memory often does not make it to the long term memory and is lost. They also managed to associate this process with old age degenerative (mental) conditions, where apparantly the locational information is lost first. Sorry this is a bit rambling, but I am am trying quickly to remember the main points .
  12. Can you believe in evolution and in god?

    all of it Strange, cool off with a +1.
  13. The upper case Pi is reserved in Mathematics for the continuous product (Like the sigma for continuous sum), although I have seen it written as a super large lower case Pi as printers are not always au fait with the Greek alphbet. The Rhind Papyrus from aroubnd 1550 B.C. offers the value 3.1604 but not in decimal but in ancient egyptian fractions.
  14. You are the only one abandoning scientific rigour. Exodus does not contain the number 3.14. Indeed ancient hebrew numbers did not run to decimals at all. Even the decimalisation of the paragraphing in say the King James Bible is relatively modern. The modern decimal separator had yet to be invented in 1604! However the Bible does indeed contain a pretty accurate figure for Pi, considering its origin date, in the Old Testament. I Kings VII 23 So be Scientific and get your fact straight before you hypothesize.
  15. Hijack from Special Relativity - simple questions?

    You managed to find some wheat to sort out? +1 Pray tell where?