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re: The Napkin Ring Paradox

Posted on 10/30/17 at 5:42 pm to
Posted by Slagathor
Makin' jokes about your teeny tiny
Member since Jul 2007
39015 posts
Posted on 10/30/17 at 5:42 pm to
My post contained zero sarcasm. I love for that kind of stuff. It kills me that it’s going away!
Posted by chinhoyang
Member since Jun 2011
26236 posts
Posted on 10/30/17 at 5:43 pm to
I wasn't being sarcastic either.

We have allowed common culture to dominate our society, and not for the better.

Posted by Open Dore Policy
The Commodore State
Member since Oct 2012
5451 posts
Posted on 10/30/17 at 6:04 pm to
Let's say were talking liquid volume.

A 2 inch core out of the earth would take a shitload more liquid to fill than a 2 inch core out of an orange.

I know I'm apparently not getting what it's actually about, but, you know, obvious.
Posted by noonan
Nassau Bay, TX
Member since Aug 2005
37017 posts
Posted on 10/30/17 at 6:07 pm to
They aren't talking about the volume of the hole taken out. They are talking about the volume of the ring. It sounds weird but the gif in the OP does a good job showing what they mean.

They are talking about the volume of the area the teal ring is running through. Not the dark gray area.
This post was edited on 10/30/17 at 6:10 pm
Posted by MountainTiger
The foot of Mt. Belzoni
Member since Dec 2008
14976 posts
Posted on 10/30/17 at 6:08 pm to
quote:

Let's say were talking liquid volume.

Volume is volume. Doesn't matter if it's liquid or solid.

quote:

A 2 inch core out of the earth would take a shitload more liquid to fill than a 2 inch core out of an orange.

Well that's true but irrelevant. The issue here isn't about the core, it's about the napkin ring.
Posted by eScott
Member since Oct 2008
11376 posts
Posted on 10/30/17 at 6:17 pm to
quote:

This is why I watch porn.


There's porn of this? Rule 34 I guess
Posted by Bestbank Tiger
Premium Member
Member since Jan 2005
82457 posts
Posted on 10/30/17 at 6:31 pm to
The earth isn't a sphere. It's flattened at the poles.
Posted by OysterPoBoy
City of St. George
Member since Jul 2013
45561 posts
Posted on 10/30/17 at 6:41 pm to
quote:

The earth isn't a sphere. It's flattened at the poles.



Great, we found one of those people.
Posted by LucasP
Member since Apr 2012
21618 posts
Posted on 10/30/17 at 6:45 pm to
quote:

The earth isn't a sphere. It's flat


Jesus fricking Christ will you people let go of the flat Earth bullshite?
Posted by PrivatePublic
Member since Nov 2012
17848 posts
Posted on 10/30/17 at 6:45 pm to
Cool video. Makes sense intuitively because if you think about it taking a section of the earth only the height of a napkin - with the earth having such a huge diameter - the section you take would have almost no perceptible curvature and the slice would be almost infinitesimally thin.
Posted by gthog61
Irving, TX
Member since Nov 2009
71001 posts
Posted on 10/30/17 at 6:51 pm to
quote:

No, if you watch the video, it makes total sense.



because I realized I was thinking about the volume of the hole,not the ring

same sort of thing as a rope around the earth a foot high off the earth is only 6 ft longer than a rope around the earth on the earth

Circle and spheres have lots of quirks.
Posted by TigerFanInSouthland
Louisiana
Member since Aug 2012
28065 posts
Posted on 10/30/17 at 7:00 pm to
Admittedly I’m a moron when it comes to math, but I’m not getting this at all.
Posted by TH03
Mogadishu
Member since Dec 2008
172004 posts
Posted on 10/30/17 at 7:01 pm to
quote:

These things fascinate me. Did you know that if you had a string 6 inches off the ground wrapping all the way around the earth it would be the same length as a string wrapped around a basketball?



Lol what
Posted by eScott
Member since Oct 2008
11376 posts
Posted on 10/31/17 at 9:20 am to
quote:

Jesus fricking Christ will you people let go of the flat Earth bullshite?


Thank you, I'm sick of reading this crap. The earth is round and the sun is cold, deal with it.
Posted by SlapahoeTribe
Tiger Nation
Member since Jul 2012
12722 posts
Posted on 10/31/17 at 9:22 am to
quote:

if you check the math, you’d find that it is very true.

Then it’s not a paradox.
Posted by SUB
Silver Tier TD Premium
Member since Jan 2009
26335 posts
Posted on 10/31/17 at 9:57 am to
quote:

Then it’s not a paradox.


You missed the point. It's impossible to core the earth 2 inches tall and make it into a usable napkin ring.
Posted by TigerstuckinMS
Member since Nov 2005
33687 posts
Posted on 10/31/17 at 10:40 am to
quote:

same sort of thing as a rope around the earth a foot high off the earth is only 6 ft longer than a rope around the earth on the earth

What'll really bake your noodle is that a rope around a basketball a foot high off the basketball is only 6 feet longer than a rope tightly wrapped around the basketball.

Diameter of the Earth: 41,804,000 feet.
Circumference of the Earth: pi*d = 131,331,139.29 feet
Diameter of the Earth plus two feet: 41,804,002 feet
Circumference of the Earth+2: pi*(d+2) = 131,331,145.57 feet
Difference: 6.28 feet

Diameter of a basketball: 0.796 feet
Circumference of a basketball: pi*d = 2.500 feet
Diameter of a basketball+2 feet: 2.796 feet
Circumference of a basketball+2: pi*(d+2) = 8.78 feet
Difference: 6.28 feet


This post was edited on 10/31/17 at 10:42 am
Posted by ShamelessPel
Metairie
Member since Apr 2013
13177 posts
Posted on 10/31/17 at 10:51 am to
quote:

i mean I get what they are saying, maybe they could use a better term? That orange is not cored, It is peeled


This threw me off as well. The illustrations darken the inside areas as well, leading me to believe they were talking about the inside of the sphere, not the outside.

The video cleared it up better.
Posted by SlapahoeTribe
Tiger Nation
Member since Jul 2012
12722 posts
Posted on 10/31/17 at 12:37 pm to
quote:

What'll really bake your noodle is that a rope around a basketball a foot high off the basketball is only 6 feet longer than a rope tightly wrapped around the basketball.

Diameter of the Earth: 41,804,000 feet.
Circumference of the Earth: pi*d = 131,331,139.29 feet
Diameter of the Earth plus two feet: 41,804,002 feet
Circumference of the Earth+2: pi*(d+2) = 131,331,145.57 feet
Difference: 6.28 feet

Diameter of a basketball: 0.796 feet
Circumference of a basketball: pi*d = 2.500 feet
Diameter of a basketball+2 feet: 2.796 feet
Circumference of a basketball+2: pi*(d+2) = 8.78 feet
Difference: 6.28 feet

Here's one I've always liked: if you take pi to the 39th digit, then it is accurate enough to compute the circumference of the visible universe (a diameter of about 46 billion light years) to within the width of a single Hydrogen atom.

NASA only uses 16 digits of pi in their calculations (when necessary).
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