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Pradeepkumar

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Posts posted by Pradeepkumar

  1. There is no chance for human to find the end(size) of the universe. But man can find the end(lifetime) of the universe. any way according to big bang theory universe will expand to its maximum space by swallowing the empty spaces. then there will be no spacefor the universe to occupy so it will crunch again .This theory is also called as the Big crunch theory

  2. did you all see the lineforward this message

    i forwarded this message .this one was sent to me by my sister through the email

    i thought that these tips are a little reasonable thats why i put this message in this forum.If some reasons and modifications are necessary then do those and send to your dear ones....

  3. my mother dont know calculus and algebra yet she is good in practical mathematics .i say that it is not necessary(i maybe wrong) to learn calculus .that is if we are good in addition, multiplication.... that will do(dont mistake me i am good in maths and algebra)

  4. originally posted by hitmankros

    And yeah... Electrons are always in orbit around the nucleus just like a fan around its center...So there's never any empty space

     

    you are wrong there when you throw a particle towards the fan it moves through the fan even if it rotates(sometimes missess-the particle should be very faster than the velocity of the rotation of the fan )try this in your home

     

    thats the case with the atom also

    when the alpha particles cross the electrons faster than the velocity of the electron it moves away from it due to the inertia.

    thats why rutherford uses fast moving alpha particles

  5. originally posted by cap'n refsmmatt

    The answer is, they'll hit the ground at the same time. Gravity accelerates all objects at 9.8m/s2, regardless of their density or weight.

     

    isn,t it in vaccum. it happens only if there is vaccum.in the normal state the object which is heavier strikes the ground first

     

    i believe i am correct for i am not a genius like you

  6. is it possible to use nuclear fuels in cars ..i didn't mean uranium and plutonium and other things.i thought we could use some elements which when splitted produce a small amount of energy. say for example chlorine when it is splitted it produces 0.954mev of energy.

     

    can this be used in cars to produce electricity

    and run them in electricity

  7. we can use water to produce electricity constantly.if the quantity of water dont change we can use the same amount of water repeatedly to produce electricity.

     

    If the above statement is true we can use this above technic in bikes.(ie)use water to produce electricity when it does not get exhausted....

     

     

    though i have a doubt ... producing electricity with water is large scale

    in that case it cannot be used in the bikes

     

     

    but is there any alternative can hydro electric project be used on small scale

    as small as a petrol tank in bike or a litter bigger

  8. The best of all site is our

    www.scienceforums.net

     

    The other sites are

    Wikipedia

    http://en.wikipedia.org/wiki/Biology

     

    Biology site

    http://biology.about.com/

     

    A project on biology

    http://www.biology.arizona.edu/

     

    Biology in yahoo

    http://dir.yahoo.com/Science/Biology/

     

    Another biology site

    http://www.dmoz.org/Science/Biology/

     

    Lifescience biology

    http://www.biology-online.org/

     

    Biology site

    http://www.biology.com/

     

    Biology in google

    http://www.google.com/Top/Science/Biology/

     

    Human biology

     

     

    Human genetics

    http://www.google.co.in/aclk?sa=L&ai=BChe1T8TsSMbMAY-y7AOf3biSDYXsgw-t4uj9AanCmoMH4M0vCAAQARgBOAFQ47iltvj_____AWDluuiD2A7IAQGAAgHZA5KbCuksENwZ4AMQ&sig=AGiWqtyllVW4hVec1OaR-Eg3Xhee7G7MsQ&q=http://www.cfww.org

     

    A project on Human Biology

    http://www.biology.arizona.edu/human_bio/human_bio.html

     

    Wikipedia

    http://en.wikipedia.org/wiki/Human_biology

     

    Human biology site

    http://www.humbiol.org/

     

    Human anatomy

    http://biology.about.com/od/humananatomybiology/Human_Anatomy_Biology.htm

     

    Human biology place

    http://www.humanbiology.com/

     

     

    I can find only this links.Anybody can add new links here.

    Thank you

  9. this maybe a little silly...but i have here a debate...

    Is algebra and calculus necessary for a comman man to live in the society???

    That is, are they used in the pratical life??

     

    I vote that they are not necessary for a common man..

     

    What about you...

  10. Health - Important Tips

     

    Answer the phone by LEFT ear .

    Do not drink coffee TWICE a day.

    Do not take pills with COOL water .

    Do not have HUGE meals after 5pm.

    Reduce the amount of OILY food you consume.

    Drink more WATER in the morning, less at night.

    Keep your distance from hand phone CHARGERS .

    Do not use headphones/earphone for LONG period of time.

    Best sleeping time is from 10pm at night to 6am in the morning.

    Do not lie down immediately after taking medicine before sleeping.

    When battery is down to the LAST grid/bar, do not answer the phone as

    the radiation is 1000 times.

     

    Forward this to those whom you CARE about!

     

    Thank you for reading this post.

    Reply me if you like this post...

  11. Hi, All

     

     

    I feel its my moral responsibility to correct all misconceptions

    regarding HIV /AIDS.

     

    I can do this because I am educated enough to comment on this. This

    message is from Mayank who is working in Ranbaxy. He is serving as

    Brand Manager (Product Manager) handling anti HIV/AIDS portfolio

    (called as

    Antiretroviral Drugs) in Ranbaxy.

     

    Please read following points carefully & don't send emails related to

    Medical ailments without having complete knowledge about it (even

    partial knowledge could be grossly dangerous).

     

    * HIV (virus) requires *ONLY* *Blood or Semen* as medium to transmit

    from one body to another.

    * HIV *can not* transmit even through *Saliva*(mucous) i.e . even if

    HIV-infected patient coughs or smooches and another person is exposed

    to his sputum (cough) or saliva, the virus still can not transmit

    because concentration of virus particles in sputum is almost NIL &

    exposure to air anyway kills virus in fraction of seconds.

     

    * In case an HIV-infected person gets an injury (like the cut in below

    mentioned story) and he is bleeding, the virus can transmit to another

    person only if another person has a cut/wound in his body & that too

    when blood from both person comes in contact with each other* (this is

    also very very rare unless bleeding is very high) and not otherwise.

     

    * HIV can *never survive in any other liquid * medium also other than

    blood or semen (& please for God sake ... never in Pani Puri wala

    pani)

     

    * Even if one drinks an HIV infected blood (or semen) of someone

    (ingest through Gastro Intestinal track), the virus can not survive in

    the acidic pH of stomach*. Highest extent of acidity is 0 (practically

    not

    possible) so imagine 1 as pH which is in our stomach. (This pH can

    burn your own finger in less than a second if you dip in that acid).

     

    * Exposure of less than 1 second in AIR KILLS the HIV virus*( hence

    story of needle pricks in Cinema heatres is a crap). Even if blood

    from a wound (of infected person) dries up (*blood clot*), *the virus

    dies*and can not infect anyone else.

     

    * HIV transmission is *ONLY* an *INFECTION* i.e.entrance of virus in

    one's body. It *DOES NOT MEAN AIDS*.

     

    * An HIV-infected person (after entrance of virus) can progress to a

    condition of AIDS only after *8 to 10 YEARS *(not in 15 days as in the

    Pani Puri story)

     

    * It is *not HIV (virus) that kills a human* .....the virus attacks

    immune cells (cells that fight against foreign pathogens/antigens) and

    hence a person's ability to fight against infections & diseases slowly

    diminishes and person ultimately dies of a disease which could be as

    simple as TB.

     

    * Most importantly, HIV is no longer a dreadful disease ... it is

     

    "*CHRONIC MANAGEABLE DISEASE*" just like Diabetes or Hypertension.

     

    * If there is anything you need to be careful from to prevent HIV is

     

    *Blood transfusion* (check before taking) /Blood donation

     

    (use sterilized needles only) and any *blood contact during an accident

     

    *or so where amount of bleeding is very high.

     

     

    Thank you for reading this message.. forward this message to everyone..to your friends

     

     

    reply me if you like the post

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