Jump to content

John Cuthber

Resident Experts
  • Content Count

    16616
  • Joined

  • Last visited

  • Days Won

    20

Posts posted by John Cuthber


  1. 15 minutes ago, Adamkins IV said:

    Again so much thanks to anyone who can actually give me some useful knowledge

    People tried.

    told them  they were wrong.

    Then you told them that you were open minded.

     

    15 minutes ago, Adamkins IV said:

    I believe that providing evidence is something which must be done when conducting one’s own original research.

    Great!
    Now looking forward to your evidence that we don't throw off practically all the pathogens we meet.

     

    17 minutes ago, Adamkins IV said:

    Anyone who comes up with a new and original hypothesis may be asked for evidence to prove their hypothesis (as no one else has proven it yet) and then the onus of proof is on them to prove their hypothesis. 

    Great!
    Still looking forward to your evidence that we don't throw off practically all the pathogens we meet.

     

    and so on.


  2. 30 minutes ago, Adamkins IV said:

    Something which isn't true isn't information.  I will reject anything which isn't correct from anywhere regardless of the source and I always will do so. 

    How will you know what is correct and what is incorrect?

    31 minutes ago, Adamkins IV said:

    We do accumulate pathogens.  That's a fact which I know. 

    In general, we destroy them, rather than accumulating  them. I do not still have all the colds or sore throats I ever caught.

    It's true that, for example, we never really get rid of some- like Measles- which is why it's very rare to get it twice.

    However, once we have fought them to a standstill, they are hardly pathogenic.

     

     

     

     


  3. 8 hours ago, Sensei said:

    You are mistaken over-trusting DNA, to catch true murderer after many years. Because it might be as well misused against incorrect innocent person.

    I will give you examples how it can put somebody innocent to jail, or even sentenced to death, or life in prison:

    - imagine you have girlfriend, or girl for one night met at club, have sex with her at night, she is going early to job, leaves your apartment early and somebody is attacking her in the middle of route, but leaves no his DNA, or leaves DNA. Now, police officers are checking DNA on the body, and find it is yours. Are you murderer? Are you rapist? Did you participate in multi person rape on her? No, you just had normal sex with her.. But you are unlucky that she has been attacked right after it.. Even worse if police finds out you had argue through SMS or Internet with her, just before somebody else attacked her..

    - imagine you are working at mall. Yours responsibility is to put bottles with beer, wine, vodka, whisky etc. to refrigerator or simply on shelf. Client takes bottle. And many hour later it is used by somebody on the party as weapon (broken bottle), and somebody dies due to injures. Again, police officers are checking tool used to commit murder, and find out your DNA on it... Again, you can be mistakenly sentenced by court, innocent person put to jail, thanks to DNA found on tool used to committing crime..

    If police had your DNA because you are in database already, they will find you immediately, and you have immediate troubles,

    but if not, they have "trace", and many (dozen) years later DNA from that crime scene can be compared with your DNA and match! Match, but not the true murderer!

    ps. My post is not against "statue of limitations" nor for it.. but just not to have absolute trust in DNA, even if it matches..

    Nice explanation of why the law includes the phrase "Beyond reasonable doubt".


  4. On 10/12/2019 at 8:37 PM, swansont said:

    (accessible includes the fact that there is only one stable isotope)

    Strictly, that's also true of Rb- you just need to wait about 10^12 years for the unstable one to decay.


  5. 20 hours ago, Moontanman said:

    Any chance nobody makes motor windings from gold has to do with gold being too expensive to use in most such applications including the Au/Al alloy? 

    No.

    Even if gold was the same price as copper, it would still make sense to use copper for motor windings- because it is much less dense.

    (Copper is also a slightly better conductor.)

     

    As I said, part of the rarity of the use of the purple gold alloy is the cost.

    That's why I said 

    On 10/11/2019 at 6:17 PM, John Cuthber said:

    If gold suddenly became cheap, metallic purple jewelry would be more common.

    So, once again, thanks for finding confirmation of my earlier post.


  6. 5 hours ago, Ville502 said:

    Speed of Light = C

                            C= 299 792 458 m / s

              1 Second= Frequency (of Cessium 133 Valent Electron)

             Frequency= 9,192, 631,770 Hz

    C= 299 792 458 Meters per .000000009192631770 Meters?

    No

    There is nothing which you can calculate from those data which has units of metres per metre.


  7. On 10/7/2019 at 10:38 PM, Moontanman said:

    ... gold wires in electric motors,...

    They often use aluminium because, while it isn't as good a conductor as copper or silver, it's a whole lot lighter.

    Gold would be a very poor choice for motors that change speed often.

    If gold suddenly became cheap, metallic purple jewelry would be more common.

    https://en.wikipedia.org/wiki/Colored_gold#Purple_gold

    However the energy cost in de-orbiting stuff is generally huge


  8. 9 hours ago, Sijo George said:

    The arguments can be summarized as follows. But I am not sure whether the arguments are really true or not. It would be great if someone specialized in this subject can guide me to the correct path.

    Thanks for the summary. It was a nice clear precis of the original work.

    It has saved many of us  from the trouble (and, probably, discomfort) of reading the book.

    The book is utter tosh totally devoid of any basis in fact.

     


  9. It's also easy to refute most of the points raised. Many are just wrong, for example:

    2 hours ago, Sijo George said:

    6. Millions of us suffer from allergies such as hay fever. How can humans failed to adapt to pollen on Earth after millions of years of evolution if we are really evolved on this planet.

    Allergies are observed in most mammals. 

    We are most likely to spot them among our pets

    https://www.msdvetmanual.com/dog-owners/skin-disorders-of-dogs/allergies-in-dogs

     

    2 hours ago, Sijo George said:

    1. Humans are particularly sensitive to sunlight - something that other species are immune to.

    https://thepigsite.com/disease-guide/sunburn-heat-stroke


  10. 7 hours ago, Blake Taylor said:

    When we see that Magnetism rationally flows parallel with its current, not irrationally encircling it,

    Reality doesn't agree with your idea of what is rational.

    And it isn't reality which has made a mistake.

     

     


  11. On 10/4/2019 at 7:45 PM, Sensei said:

    Any object with temperature T is emitting photons. How much energy have these photons depend on temperature of the body. Your biological body is also emitting infra-red photons (therefor one can use IR thermometer to remotely check temperature, or IR camera to detect people or animals from longer distance). If body is enough hot, there are emitted visible photons (and your eyes are able to detect them as light).

    Please read black-body radiation article on Wikipedia for more details about this subject:

    https://en.wikipedia.org/wiki/Black-body_radiation

     

    That's interesting.

    If, like the Sun, I was made from hydrogen and helium, what would my emission spectrum be like? (assuming I'm at 37C and 1 atmosphere pressure).

    Would it look like black body radiation?


  12. 1 hour ago, Sensei said:

    In previous post, you mixed up Theresa May with Thatcher

    No I did not.

    I was referring to the Oxford Chemist who was PM when I was studying chemistry at Oxford and, who I knew would have studied QM just as I had.

    I had no real idea what May had studied; I'd have guessed at PPE like Cameron.

    1 hour ago, Sensei said:

    Nobody would use "not so long" for something that happened over thirty years ago.

    1990 is not "over 30 years ago". Please learn to count.

    It's not so long ago that people have forgotten her.

    So, just to  make it clear, as I said.

     

    It is not so long ago that we had a PM , specifically Maggie, who studied quantum mechanics.

     

    Since that's true, I don't need to "pretend" that I meant it. I still do.

    Trying to school a native English speaker on English idiom is not going to work out well for you.

     

    And we can add "Makes up sh**" about what people said and did" to the list


  13. 12 hours ago, Clay Gillespie said:

    I’m sure the rules don’t say everything over Inow’s head is excluded.

    It wouldn't matter if they did. You still haven't posted any science.


  14. 4 hours ago, Sensei said:

    Who are you talking about? On neither Theresa May nor Margaret Thatcher Wikipedia profiles there is not a single word about "quantum", "physics" nor "mechanics"..

     

    Margaret Thatcher wiki "She studied chemistry at Somerville College, Oxford, and worked briefly as a research chemist, "

     

     

    So, we can add "doesn't realise that QM is part of the chemistry syllabus" to the list.

     


  15. The Sun is so hot that most of the gas is ionised.

    Free electrons and protons are allowed to have (almost ) any energies.

    When they crash into eachother some fraction of the energy- depending on angles of impact etc, is sent out as em radiation.

     

    Also, at those temperatures the "lines" are broadened by doppler shift and at the high pressures involved they are also broadened by collisions.

    https://en.wikipedia.org/wiki/Spectral_line#Line_broadening_and_shift

     

    The overall effect is a mass of overlapping emission bands which  approximate (rather well) to a black body spectrum.

     

     

     


  16. On 10/2/2019 at 3:24 PM, mistermack said:

    He's not an idiot, (IQ wise at least) , he just missed out on a first from Balliol College Oxford, leaving with an upper second. And he spend a day at Culham, being shown around and briefed on the project by the top brass, so he should by now know more than most of us, about the subject. 

    Ye, he should.

    And, as you point out, he's not an idiot- he probably has a pretty good idea how things are going and how long it will take to get it working "productively".

     

    But what he said was "on the verge".

    And it's not.

    So since he knows the truth, but says something else, he's a liar.

    Incidentally, he didn't get a degree from Balliol. he got a degree from Oxford.


  17. 7 hours ago, Rhodium Gold Titanium said:

    The Supreme Court has left Boris Johnson with zero credibility - and no way to deliver Brexit

    Nice  picture.

    Boris left Boris with no credibility, and the promised unicorn was never going to be delivered.

     

    7 hours ago, Rhodium Gold Titanium said:

    I didn't know about Tokamak Reactors before seeing this thread and some shallow research has brought a wealth of science articles and youtube videos all about this novel little machine. 

     

    Not novel, and "little" is a matter of opinion.


  18. 17 hours ago, mistermack said:

    I think that we (the population) at the end of the day get the politicians we deserve. They wouldn't lie, if they always got punished by the voters,

    Do you realise that Boris was voted in by a poll of party members

    He was elected by 

    92153 people

    Roughly enough for a good football crowd.

    The rest of us - 99.86%- didn't get a vote.

    Exactly how are we supposed to punish him?

    17 hours ago, Sensei said:

    .if population is intelligence, quantum physicists, you cannot lie to us...

    Is there some link between intelligence and quantum physics?

    It's not so long since we had a prime minister who studied quantum mechanics.

    She was every bit as good at lying- and being lied to- as the others,.

     

    17 hours ago, Sensei said:

    Merkel graduated quantum chemistry, her husband too... what UK have.. ?

    https://www.quora.com/How-many-Members-of-UK-Parliament-have-science-degrees

    17 hours ago, Sensei said:

    I said to somebody here, Merkel is the only politician who could speak with me... (the rest would not have idea what I am talking about anyway so waste of my time)

    Was it your intention to come across as laughably conceited and illiterate there?

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.