Talk:1473: Location Sharing - Revision history

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2019-11-27T15:11:07Z

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172.69.194.22 at 21:32, 6 November 2019

2019-11-06T21:32:02Z

172.69.194.22 at 21:28, 6 November 2019

2019-11-06T21:28:21Z

172.69.194.22 at 21:26, 6 November 2019

2019-11-06T21:26:42Z

172.69.194.22 at 21:25, 6 November 2019

2019-11-06T21:25:53Z

172.69.194.22 at 21:20, 6 November 2019

2019-11-06T21:20:23Z

Sensorfire at 02:19, 15 August 2018

2018-08-15T02:19:43Z

173.245.50.107 at 04:35, 28 February 2015

2015-02-28T04:35:52Z

Davidy22 at 23:38, 18 January 2015

2015-01-18T23:38:50Z

173.245.52.124 at 18:36, 18 January 2015

2015-01-18T18:36:03Z

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 It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.
 [[Special:Contributions/199.27.133.98|199.27.133.98]] 05:20, 14 January 2015 (UTC)
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 Paragraph 4 is kind of a stretch. I highly doubt that was Randall's intention, or that it even crossed his mind.<br>-[[User:Sensorfire|Sensorfire]] ([[User talk:Sensorfire|talk]]) 02:19, 15 August 2018 (UTC)

← Older revision		Revision as of 21:32, 6 November 2019
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−	It might be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep ~~her~~ safe. [[Special:Contributions/172.69.194.22\|172.69.194.22]] 21:26, 6 November 2019 (UTC)	+	It might be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would be able to get to know all her future (i.e. her trajectory in state space) appyling the laws of mechanics so she denies to keep herself safe. [[Special:Contributions/172.69.194.22\|172.69.194.22]] 21:26, 6 November 2019 (UTC)

	It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.		It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.

← Older revision		Revision as of 21:28, 6 November 2019
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−	It ~~can~~ be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep her safe. [[Special:Contributions/172.69.194.22\|172.69.194.22]] 21:26, 6 November 2019 (UTC)	+	It might be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep her safe. [[Special:Contributions/172.69.194.22\|172.69.194.22]] 21:26, 6 November 2019 (UTC)

	It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.		It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.

← Older revision		Revision as of 21:26, 6 November 2019
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−	It can be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep her safe. [[Special:Contributions/172.69.194.22\|172.69.194.22]] 21:25, 6 November 2019 (UTC)~~pablozim~~	+	It can be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep her safe. [[Special:Contributions/172.69.194.22\|172.69.194.22]] 21:26, 6 November 2019 (UTC)

	It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.		It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.

← Older revision		Revision as of 21:25, 6 November 2019
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−	It can be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep her safe.	+	It can be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep her safe. [[Special:Contributions/172.69.194.22\|172.69.194.22]] 21:25, 6 November 2019 (UTC)pablozim

	It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.		It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.

← Older revision		Revision as of 21:20, 6 November 2019
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		+	It can be as well a reference to classical mechanics and its determinism. If one knew both Megan's location and momentum he would know all her future (i.e. her trajectory in state space) so she denies to keep her safe.
		+
	It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.		It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time.
	[[Special:Contributions/199.27.133.98\|199.27.133.98]] 05:20, 14 January 2015 (UTC)		[[Special:Contributions/199.27.133.98\|199.27.133.98]] 05:20, 14 January 2015 (UTC)

← Older revision		Revision as of 02:19, 15 August 2018
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	+1 for this being about the uncertainty principle. Frankly, I'm surprised there's any controversy (many of the alternative explanations offered seem very unlikely, quite apart from anything else): if there's any ambiguity in the cartoon itself, surely the title text (by riffing on another pair of conjugate variables) clears that up?		+1 for this being about the uncertainty principle. Frankly, I'm surprised there's any controversy (many of the alternative explanations offered seem very unlikely, quite apart from anything else): if there's any ambiguity in the cartoon itself, surely the title text (by riffing on another pair of conjugate variables) clears that up?
	[[Special:Contributions/141.101.98.169\|141.101.98.169]] 10:47, 16 January 2015 (UTC)		[[Special:Contributions/141.101.98.169\|141.101.98.169]] 10:47, 16 January 2015 (UTC)
		+
		+	Paragraph 4 is kind of a stretch. I highly doubt that was Randall's intention, or that it even crossed his mind.<br>-[[User:Sensorfire\|Sensorfire]] ([[User talk:Sensorfire\|talk]]) 02:19, 15 August 2018 (UTC)

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 :That was my understanding, too. Moreover, I don't see any humor in applying the uncertainity principle to macroscopic objects. [[Special:Contributions/108.162.254.57|108.162.254.57]] 08:53, 14 January 2015 (UTC)
 ::You're such a Bohr. --[[Special:Contributions/108.162.216.30|108.162.216.30]] 11:54, 18 January 2015 (UTC)
 Angular momentum sensors - a.k.a. gyros, not accelerometers. {{unsigned ip|141.101.80.109}}

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 Plus, to the "I don't see any humor in applying the uncertainity principle to macroscopic objects." person, above, please pass by your local XKCD offices at the first opportunity in order to hand back your XKCD Membership Card.  You're obviously not one of us! ;) [[Special:Contributions/141.101.98.191|141.101.98.191]] 16:28, 14 January 2015 (UTC)
 ::My goodness, yes!  What a lot of seriousness has found its way into this discussion!  How could anyone miss the humo[u]r in the personification of a subatomic particle as a Megan?[[User:Taibhse|Taibhse]] ([[User talk:Taibhse|talk]]) 04:23, 15 January 2015 (UTC)
-::No humor in it?  Clearly, your [http://xkcd.com/1471/ macrobiome] is out of balance.
+::No humor in it?  Clearly, your [http://xkcd.com/1471/ macrobiome] is out of balance. {{unsigned ip|173.245.52.124}}
 Per the explanation: "Randall suggests the poor accuracy of the compasses in mobile phones (measuring the angular position) is due to the gyroscopes being too good. (If both the gyroscope and the compasses were completely accurate, it would violate the uncertainty principle)."
 The compass points in a particular direction but tells you nothing about location or momentum.  How would it be involved in any violation of Uncertainty?  The gyroscope and GPS I could see, maybe.  But the compass?  I don't see how it combined with anything could involve Uncertainty. - Equinox [[Special:Contributions/199.27.128.117|199.27.128.117]] 16:46, 14 January 2015 (UTC)