Welcome to iPadForums.net Guest - Click Here to Register

The "Useless Information" Thread

This is a discussion on The "Useless Information" Thread within the Off-Topic forums, part of the Apple iPad Discussions category; It takes 1gallon of diesel to move the Queen Elizabeth II 125 feet at 20 knots....

iPadForums.net is the original Apple iPad Forum! Registered Users do not see these ads. Please Register - It's Free!
+ Reply to Thread
Page 14 of 38 FirstFirst ... 4 12 13 14 15 16 24 ... LastLast
Results 131 to 140 of 375
Like Tree29Likes

Thread: The "Useless Information" Thread

  1. #131
    iPad Addict
    Member #
    260719
    Liked
    141 times
    Join Date
    Nov 2012
    Location
    Niagara-on-the-Lake Ontario Canada
    Posts
    1,148
    It takes 1gallon of diesel to move the Queen Elizabeth II 125 feet at 20 knots.

    Roy Rob - Niagara-on-the-Lake
    Ontario

  2. Ads


  3. #132
    iPad Addict
    Member #
    193481
    Liked
    171 times
    Join Date
    Apr 2012
    Location
    Seattle, Washington
    Posts
    1,138

    The "Useless Information" Thread

    Quote Originally Posted by Roy Rob View Post
    In theory the body would slow as it nears the centre but as the temperature would be over 4,000C the remaining ash would become stationery. Also there would be air resistance to begin with.
    Good point.
    iPhone 4S - 16GB, White | iPhone 5 - CDMA/LTE, 16GB, White | iPad mini - WiFi, 16GB, White | iPad 4 - CDMA/LTE, 16GB, White | Apple TV

  4. #133
    iPF Legend
    Member #
    28530
    Liked
    1523 times
    Join Date
    Jan 2011
    Location
    Walla Walla, WA
    Posts
    15,432
    Quote Originally Posted by Roy Rob View Post
    In theory the body would slow as it nears the centre but as the temperature would be over 4,000C the remaining ash would become stationery. Also there would be air resistance to begin with.
    Assuming enough of the body remains a solid near the core (highly unlikely):

    Wind resistance would be the only thing slowing the body as it approaches the center. An object does not slow down because gravity decreases, it only accelerates more slowly.

    At some point the body would reach terminal velocity; the point where wind resistance counters gravity's acceleration. As gravity decreases that point will get slower and slower, however it would not be zero at the center. How fast the body would still be going I don't have the math to make an accurate (or even semi-accurate) guess. It would keep going until the the now rising gravity overcame the remaining velocity. At that point you'd have the same situation in reverse, with less energy. And you'd bounce back and forth a bit like a rubber band, going a bit slower with each cycle until you ended up at the center anyway.

    If you eliminated the wind resistance and the heat, you'd could bounce back and forth (end to end) forever, or there abouts. There is always some energy loss in any system.
    ardchoille likes this.

  5. #134
    iPad Junkie
    Member #
    213285
    Liked
    268 times
    Join Date
    Jun 2012
    Location
    St. Louis, USA
    Posts
    959
    Quote Originally Posted by Roy Rob
    ...as the temperature would be over 4,000C the remaining ash would become stationery.
    I'm not sure you're write about that...

    milliHelen: amount of beauty required to launch one ship.

  6. #135
    Super Moderator
    Member #
    111434
    Liked
    524 times
    Join Date
    Oct 2011
    Location
    Near the Ionian Nebula, still searching for Earth
    Posts
    9,405
    I think we can dispense with vaporization at the centre of the earth by plotting an FTL jump troposphere to troposphere.
    This would of course have to be an equatorial jump to ensure geomagnetics don't scramble navigation and cause us to materialize inside the planet.

    AA

    Sent from my iPad using iPF

  7. #136
    iPad Addict
    Member #
    260719
    Liked
    141 times
    Join Date
    Nov 2012
    Location
    Niagara-on-the-Lake Ontario Canada
    Posts
    1,148
    Quote Originally Posted by LannyC

    I'm not sure you're write about that...

    milliHelen: amount of beauty required to launch one ship.
    Oops! ..... Marry hid a whittle limb, its fleets wiz wait as now, an aviary wear that Marry wend the limb were sir two goo. Nothing underlined everything looks good.... Print it!

    Roy Rob - Niagara-on-the-Lake
    Ontario

  8. #137
    Moderator
    Member #
    235421
    Liked
    616 times
    Join Date
    Aug 2012
    Location
    Adelaide, South Australia
    Posts
    3,654
    Quote Originally Posted by Roy Rob View Post
    I think that the ashes would stop around the centre of the molten core..... Yourself?
    I don't suppose it would strengthen my case if I said I would be wearing this humungous air conditioned asbestos suit. Maths has never been my strong point so I can't prove this. All I can remember is that a falling object accelerates at a rate of 32 feet per second squared. So if you did get to the center, without getting killed by bouncing off the tunnel walls (oh forgot, it's also a very wide tunnel) then you could be travelling at an enormous speed at the center which could maybe overcome the opposing gravitational pulls? I don't know the original source, it was an article in our local paper. And of course there is that non-mathematical proposition that, a priori, if something sounds too good to be true, it probably is.LOL
    Please come back to say whether a member's assistance solved a problem. Others may be helped by that.
    Check out the rules~ http://www.ipadforums.net/forum-rule...ease-read.html
    iPad3 64gig black, much unused PC Win 8.1 Pro, Samsung Galaxy mobile phone, Electrolux refrigerator (cool version)

  9. #138
    Moderator
    Member #
    235421
    Liked
    616 times
    Join Date
    Aug 2012
    Location
    Adelaide, South Australia
    Posts
    3,654
    Quote Originally Posted by AdmiralAdama View Post
    I think we can dispense with vaporization at the centre of the earth by plotting an FTL jump troposphere to troposphere.
    This would of course have to be an equatorial jump to ensure geomagnetics don't scramble navigation and cause us to materialize inside the planet.

    AA

    Sent from my iPad using iPF
    That sounds entirely plausible! That is likely what happened to your navigation instruments near the Ionian Nebula, I shouldn't wonder.
    Please come back to say whether a member's assistance solved a problem. Others may be helped by that.
    Check out the rules~ http://www.ipadforums.net/forum-rule...ease-read.html
    iPad3 64gig black, much unused PC Win 8.1 Pro, Samsung Galaxy mobile phone, Electrolux refrigerator (cool version)

  10. #139
    Super Moderator
    Member #
    85546
    Liked
    576 times
    Join Date
    Aug 2011
    Location
    Edmonton AB Canada
    Posts
    9,848
    Quote Originally Posted by twerppoet

    There is always some energy loss in any system.

    I disagree. The law of conservation of energy states that energy may neither be created nor destroyed. Therefore the sum of all the energies in the system is a constant.

    Sent from my iPad using iPF
    Apple Equipment (so far) rMBP 15"; iPad 2 (iOS 7.1); iPhone 5s (iOS 7.1); iPhone 4 (iOs 7.1); AirPort Extreme; Airport Express; AppleTV

  11. #140
    iPF Legend
    Member #
    28530
    Liked
    1523 times
    Join Date
    Jan 2011
    Location
    Walla Walla, WA
    Posts
    15,432
    Quote Originally Posted by KevinJS View Post
    I disagree. The law of conservation of energy states that energy may neither be created nor destroyed. Therefore the sum of all the energies in the system is a constant.

    Sent from my iPad using iPF
    This only applies to an isolated system.

    If the universe is completely self-contained and there can be no transfer of forces into or out of it (debatable), then the universe is an isolated system and you have the single exception that make my rule.

    Nothing else is. Any smaller system than the universe will either be losing or gaining energy (both at different rates, most likely). At least until entropy prevails.

    And I said loss of energy, not it's destruction.


Home | Forum | Active Topics | What's New

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Similar Threads

  1. "If you are new, please post an introduction thread" update
    By peterwhi in forum New Member Introductions - Site Assistance
    Replies: 9
    Last Post: 10-14-2013, 07:13 AM
  2. Replies: 1
    Last Post: 04-25-2012, 12:32 PM
  3. Introduction Thread from "Barista"
    By barista in forum New Member Introductions - Site Assistance
    Replies: 2
    Last Post: 02-27-2012, 11:05 PM
  4. Regarding with "10 Ipad 2 Problems?" thread.
    By aihna in forum iPad 2 Forum
    Replies: 5
    Last Post: 08-31-2011, 04:35 AM

Search tags for this page

king james ii of scotland, in 1457, issued a ban on the playing of golf.

Click on a term to search for related topics.