Turn on thread page Beta

How many universes would you need to fit in a googol of salt grains? watch

    • Thread Starter
    Offline

    2
    ReputationRep:
    universes are 10bn light years in radius
    salt grains average of 1mm cubed
    answers please
    (pm me if you want to know my answer worked out with a prof from southampton uni)


    GO........
    Offline

    0
    ReputationRep:
    ≈ 39,909,940,000
    Offline

    1
    ReputationRep:
    14.683

    Except on Sundays and Bank Holidays.
    • Thread Starter
    Offline

    2
    ReputationRep:
    where u get the .683 from??
    Offline

    1
    ReputationRep:
    The same place I got the 14 from - thin air.
    • Thread Starter
    Offline

    2
    ReputationRep:
    rite
    cl
    • Thread Starter
    Offline

    2
    ReputationRep:
    just thinking back - it really should be multiverses shouldn't it? i mean 'uni' is singular and my question is asking about multiple things so it should be multiverses! btw no where near yet!
    Offline

    8
    ReputationRep:
    I have one complaint with this: the furthest visible light from us is roughly 14 billion light years away in any direction, which would make the universe's radius at least 4bn light years more than in your question.

    That said, going with the original question, 2,810,000,000,000 universes should suffice. 1 light year cubed is equal to about 8.46732407 × 10^56 millimeters cubed. A universe of 10bn lightyears in radius, assuming we have a spherical universe, has a volume of about 4.1887902 × 10^30 light years cubed. So one universe would hold about 3.54678441 × 10^87 grains of salt. So, with 1.0 * 10^13 universes we'd have somewhat over three googols worth of salt grains. So, if we have 2.81 × 10^12 universes, that gives us room for 1 googol of salt, with a tiny bit of empty space left over.
    Offline

    0
    ReputationRep:
    i just checked the website....

    http://aaoj.homestead.com/files/googol.html
    Offline

    0
    ReputationRep:
    Hehe, you're all wrong, if you packed it full, the universe would collapse under its own gravity and so make more room.
    Offline

    0
    ReputationRep:
    What poor soul has to go round the beaches picking up sand??
    Offline

    0
    ReputationRep:
    Wouldn't it be just one universe though, since nothing exists outside of the universe and if these salt grains took up all of the space in the universe and overflowed, it would still be just one universe, just expanded.
    Offline

    1
    ReputationRep:
    Here's a better one: how many grains of salt could you fit in a googol universes?
    Offline

    0
    ReputationRep:
    (Original post by Kernel)
    Here's a better one: how many grains of salt could you fit in a googol universes?
    Quite easily you could say 1. Just because this universe is this big, doesn't mean that any other universe will be as big. Your question is contradictory anyway since you cannot have more than one universe as then they would become multiverses.
 
 
 
Turn on thread page Beta
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

Updated: June 25, 2005
The home of Results and Clearing

2,475

people online now

1,567,000

students helped last year
Poll
A-level students - how do you feel about your results?
Useful resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.