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Rajnish Kaushik

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Posts posted by Rajnish Kaushik

  1. Hello again,

     

    Now it's been more than an month since I started this post. In the mean time the iron slab has been lying in a bucket of salt water in the garden, fully exposed to wind and weather. As you can see in the images, there is still no sign of rust. Most of the surface is covered in a thin, black film that can be rubbed off with a cloth. As before, a considerable part of the iron is still shining like fresh polished silver, with no sign of rust, oxidation or corrosion of any kind.

     

    I still haven't found any satisfying explanation to the phenomenon.

     

    Cheers & merry christmas,

    Mike

    sell it

    u will be very rich wink.pngwink.pngwink.pngwink.pngdry.pngdry.pngdry.pngdry.pngcool.pngcool.png

  2. HELL EXPLAINED BY CHEMISTRY STUDENT

     

    http://cognitive-edge.com/blog/entry/3655/hell-explained-by-a-chemistry-student/

    The following is an actual question given on a University of Washington chemistry mid-term.

     

    The answer by one student was so "profound" that the professor shared it with colleagues, via the Internet, which is, of course, why we now have the pleasure of enjoying it as well:

    Bonus Question: Is Hell exothermic (gives off heat) or endothermic (absorbs heat)?

     

    Most of the students wrote proofs of their beliefs using Boyle's Law (gas cools when it expands and heats when it is compressed) or some variant.

     

    One student, however, wrote the following:

     

    First, we need to know how the mass of Hell is changing in time. So we need to know the rate at which souls are moving into Hell and the rate at which they are leaving.

     

    I think that we can safely assume that once a soul gets to Hell, it will not leave. Therefore, no souls are leaving.

     

    As for how many souls are entering Hell, let's look at the different religions that exist in the world today.

     

    Most of these religions state that if you are not a member of their religion, you will go to Hell.

     

    Since there is more than one of these religions and since people do not belong to more than one religion, we can project that all souls go to Hell.

     

    With birth and death rates as they are, we can expect the number of souls in Hell to increase exponentially.

     

    Now, we look at the rate of change of the volume in hell because Boyle's Law states that in order for the temperature and pressure in

     

    Hell to stay the same, the volume of Hell has to expand proportionately as souls are added.

     

    This gives two possibilities:

     

     

    1. If Hell is expanding at a slower rate than the rate at which souls enter Hell, and then the temperature and pressure in Hell will increase until 'all Hell breaks loose'.

     

    2. If Hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until 'Hell freezes over'.

     

    So which is it?

     

    If we accept the postulate given to me by Teresa during my Freshman year that, "It will be a cold day in Hell before I sleep with you," and take into account the fact that I slept with her last night, then number two must be true, and thus I am sure that Hell is exothermic and has already frozen over.

     

    The corollary of this theory is that since Hell has frozen over, it follows that it is not accepting any more souls and is therefore, extinct......leaving only Heaven, thereby proving the existence of a divine being which explains why, last night, Teresa kept shouting "Oh my God."

     

    This student received the only "A".

     

    hell and heaven doesn't exist they are just superstition

    and why did he need to explain it????

  3. Hello

     

    Yesterday, I was wondering something:

     

    • When a person falls in sleep in a complete dark, silent room (0 dB; let's assume the person's breathing and heart beating etc. doesn't make any sound). When he's in the REM-sleep, and suddenly, a sound is being produced, he will most likely wake up.
    • When a person falls in sleep while the same (let's say, constant) sound is being played on the background, will he wake up (let's say in the REM-sleep) when the sound is suddenly deactivated??

      My guess would be: yes: the brains are used to the sound and I think that when they register a sudden change of the situation, they will wake you up?

    (The same could be asked for light, instead of sound)

     

    Thank you for answers or reasoning.

     

    Sincerely

     

    Function

    this is not applicable to light because when(after)i sleep my mom switch the lights off but i don't wake up

  4. Most schools and school subjects are boring. This is not just for this one class or subject. A lot of times schools use outdated textbooks and outdated methods of teaching. A lot of schools simply give kids a book and say read this and you better pass the quiz on Friday. Now there is better ways that have been proven to make material stick better but a lot of schools still never use such methods. There is a way to teach where a child is engaged, enjoys the material and the material sticks but a lot of schools do not know how to do this and so children struggle trying to pay attention and trying to understand and pass. I also believe it helps if someone teaching actually does something with the subject rather than just attempting to teach it. If a novelist decides to become a teacher he is often going to teach better than an ordinary English teacher. Some of the best teachers I know have had jobs in the subject before they decided to later pursue teaching. I believe experience helps a lot.

    sir can u say this to indian education ministry please

    so thiscan help

  5. Humans can't change the laws of physics. We can modify our descriptions of laws, but we cannot do so arbitrarily: only as the evidence directs us.

     

    Right now, there either exists a way for time travel to take place or there does not. If there is, we have yet to discover it. If there is not, there is nothing we can do to make time travel possible.

     

    So to answer your question: We may, in the future, find a way to travel through time and modify our knowledge of natural laws to reflect this. If in fact it is impossible, however, there is no way we can make it possible and attempting to change our descriptions of the laws of nature to make it possible will merely cause those descriptions to be wrong; it will not allow us to travel through time

    thanks for the conclusion sir

  6.  

     

    That is good enough for me! wink.png

     

     

    Wow. Well said. You're such good person. From now on it'll be mine the favorite quote from this website.

    thanks to both of you

  7. How exactly is physics taught in your country? Where I live physics as a separate subject begins in 7th grade (junior high school), then after 3 years one may choose a math-physics profile in senior high school with five hours (five 45min lessons) of physics every week. So I think by the time of 12th grade one has a pretty solid grasp of classical physics and a good preparation for uni physics. If someone is really passionate about it, he/she won't find the material boring.

    They take a book and just derive formulas :(

    no practices no real life examples and no other things

    practical*

  8. If you have star with initial mass m, after burning out all fuel and collapse it's mass is smaller than initial m. During lifetime star is ejecting clouds of gas/plasma in eruptions.

    can u explain please

     

    Gravity increases as you get nearer the center of mass. On the surface of the sun you will feel the greatest gravitational pull. If you move as far from the sun as the earth is, the gravity will be less because you are further from the center of mass. If you burrow into the sun, the gravity will be less because now some of the mass is over you head. But if the sun shrinks, then you can still be on the surface, but also get closer to the center of mass.

     

    The gravity doesn't increase if it turns into a black hole. It increases if you get closer to the center of mass. A black hole is just so small that you can get VERY close to its center of mass.

    means not even mercury?

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