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| From | benj <none@gmail.com> |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: What if the Earth were Hollow? |
| References | (1 earlier) <n117di$80u$1@speranza.aioe.org> <pan.2015.10.31.02.39.15@localhost.localdomain> <n11bha$f4s$1@speranza.aioe.org> <pan.2015.10.31.03.21.02@localhost.localdomain> <4904b88e-6d05-46cc-9b12-cbcb09db1265@googlegroups.com> |
| Message-ID | <l27Zx.43$9I7.27@fx12.iad> (permalink) |
| Organization | TeraNews.com |
| Date | 2015-10-31 13:40 -0400 |
On 10/31/2015 12:01 PM, nuny@bid.nes wrote:
> On Friday, October 30, 2015 at 8:21:53 PM UTC-7, Fabian Russell wrote:
>> On Fri, 30 Oct 2015 22:11:20 -0500, gilber34 wrote:
>>
>>>>
>>>> Question: What shape does a tunnel have to be to allow a complete
>>>> passage?
>>>
>>>
>>> with or without air in the tunnel ?
>>>
>>> with, prob a strange sprial
>>>
>>> without .......
>>>
>>
>> Let consider without air. Dropping a ball at the surface is
>> essentially putting an object into orbit with an initial velocity
>> equal to the rotational speed at the latitude of the drop.
>> The path then would have to be an ellipse.
>
> Yes, if the Earth didn't rotate.
>
>
> Mark L. Fergerson
why drill a tunnel, Mark, when there is already a nice hole into the
hollow center near the North pole? Oh that's right, the physics is more
interesting down at the equator!
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What if the Earth were Hollow? Sam Wormley <swormley1@gmail.com> - 2015-10-30 20:32 -0500
Re: What if the Earth were Hollow? gilber34 <fafa@invalid.com> - 2015-10-30 21:01 -0500
Re: What if the Earth were Hollow? Fabian Russell <root@localhost.localdomain> - 2015-10-31 02:39 +0000
Re: What if the Earth were Hollow? gilber34 <fafa@invalid.com> - 2015-10-30 22:11 -0500
Re: What if the Earth were Hollow? Fabian Russell <root@localhost.localdomain> - 2015-10-31 03:21 +0000
Re: What if the Earth were Hollow? "nuny@bid.nes" <Alien8752@gmail.com> - 2015-10-31 09:01 -0700
Re: What if the Earth were Hollow? benj <none@gmail.com> - 2015-10-31 13:40 -0400
Re: What if the Earth were Hollow? Fabian Russell <root@localhost.localdomain> - 2015-10-31 18:10 +0000
Re: What if the Earth were Hollow? Mahipal <mahipal7638@gmail.com> - 2015-10-31 11:38 -0700
Re: What if the Earth were Hollow? Fabian Russell <root@localhost.localdomain> - 2015-10-31 19:40 +0000
Re: What if the Earth were Hollow? xxein1@att.net - 2015-10-31 09:52 -0700
Re: What if the Earth were Hollow? gilber34 <fafa@invalid.com> - 2015-10-31 12:39 -0500
Re: What if the Earth were Hollow? "nuny@bid.nes" <Alien8752@gmail.com> - 2015-11-01 04:11 -0800
Re: What if the Earth were Hollow? Fabian Russell <root@localhost.localdomain> - 2015-11-01 17:40 +0000
Re: What if the Earth were Hollow? jimp@specsol.spam.sux.com - 2015-10-31 02:24 +0000
Re: What if the Earth were Hollow? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-10-31 12:16 -0700
Re: What if the Earth were Hollow? Lofty Goat <rlwatkins@gmail.com> - 2015-10-31 18:17 -0500
Re: What if the Earth were Hollow? Sam Wormley <swormley1@gmail.com> - 2015-10-31 19:32 -0500
Re: What if the Earth were Hollow? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-11-01 14:56 -0800
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