Talk:669: Experiment - Revision history

Firestar233 at 23:47, 10 April 2025

2025-04-10T23:47:02Z

CKcoolidge at 13:30, 10 April 2025

2025-04-10T13:30:01Z

162.158.216.115 at 15:16, 5 April 2025

2025-04-05T15:16:42Z

172.70.86.115 at 15:13, 5 April 2025

2025-04-05T15:13:58Z

CKcoolidge at 03:25, 5 April 2025

2025-04-05T03:25:08Z

CKcoolidge: Asked a question about the comic.

2025-04-05T03:22:24Z

Asked a question about the comic.

Bb777 at 23:08, 2 March 2025

2025-03-02T23:08:17Z

Bb777 at 23:06, 2 March 2025

2025-03-02T23:06:50Z

Bb777 at 23:05, 2 March 2025

2025-03-02T23:05:19Z

172.68.138.178 at 20:43, 7 March 2023

2023-03-07T20:43:01Z

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 :That said, there are worse understandings. Like vacuum==weightlessness, or at least lunar-strength gravity, but the moment you're cycled through the airlock you have full 1G of gravity. A cinematic convention, of course, where you handwave the less SFX-based 'indoor' scenes, or handwave some gravity-plate dookickey, or the hard-SF ones lampshade with magnetic/velcro footwear (the 'badly hard-'SF ones might even grant things in earthbound vacuum chambers an undue weightlessness, with nary the briefest of nods to ''anti-''gravity generators somehow being coupled to the airlessness).
 :Which of course makes a layman confused over what's realistic and what isn't. I suppose you could argue that Randall's choice of words could be better, but it ought to be a "YKWIM" situation for those like us who perhaps see what trope he's invoking, and shouldn't bother those who take the handwaving at first value without staring too deeply into that particular abyss. [[Special:Contributions/172.70.86.115|172.70.86.115]] 15:13, 5 April 2025 (UTC)
 Ah, thank you for clarifying that so elegantly.
 [[User:CKcoolidge|CKcoolidge]] ([[User talk:CKcoolidge|talk]]) 13:30, 10 April 2025 (UTC)CKcoolidge

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	:That said, there are worse understandings. Like vacuum==weightlessness, or at least lunar-strength gravity, but the moment you're cycled through the airlock you have full 1G of gravity. A cinematic convention, of course, where you handwave the less SFX-based 'indoor' scenes, or handwave some gravity-plate dookickey, or the hard-SF ones lampshade with magnetic/velcro footwear (the 'badly hard-'SF ones might even grant things in earthbound vacuum chambers an undue weightlessness, with nary the briefest of nods to ''anti-''gravity generators somehow being coupled to the airlessness).		:That said, there are worse understandings. Like vacuum==weightlessness, or at least lunar-strength gravity, but the moment you're cycled through the airlock you have full 1G of gravity. A cinematic convention, of course, where you handwave the less SFX-based 'indoor' scenes, or handwave some gravity-plate dookickey, or the hard-SF ones lampshade with magnetic/velcro footwear (the 'badly hard-'SF ones might even grant things in earthbound vacuum chambers an undue weightlessness, with nary the briefest of nods to ''anti-''gravity generators somehow being coupled to the airlessness).
	:Which of course makes a layman confused over what's realistic and what isn't. I suppose you could argue that Randall's choice of words could be better, but it ought to be a "YKWIM" situation for those like us who perhaps see what trope he's invoking, and shouldn't bother those who take the handwaving at first value without staring too deeply into that particular abyss. [[Special:Contributions/172.70.86.115\|172.70.86.115]] 15:13, 5 April 2025 (UTC)		:Which of course makes a layman confused over what's realistic and what isn't. I suppose you could argue that Randall's choice of words could be better, but it ought to be a "YKWIM" situation for those like us who perhaps see what trope he's invoking, and shouldn't bother those who take the handwaving at first value without staring too deeply into that particular abyss. [[Special:Contributions/172.70.86.115\|172.70.86.115]] 15:13, 5 April 2025 (UTC)
		+	Ah, thank you for clarifying that so elegantly.
		+	[[User:CKcoolidge\|CKcoolidge]] ([[User talk:CKcoolidge\|talk]]) 13:30, 10 April 2025 (UTC)CKcoolidge

@@ Line 8: / Line 8: @@
 [[User:CKcoolidge|CKcoolidge]] ([[User talk:CKcoolidge|talk]]) 03:22, 5 April 2025 (UTC)CKcoolidge
 :It's basically a shortcut for "on a frictionless surface in a vacuum" (with possibly some other caveats, in some scenarios, depending upon exactly what's being modeled and why). If you think about it, the vacuum can't ever really ''have'' a friction at all (at least this side of some fairly exotic reactionless propulsion ideas), so best treat that interpretation as a tautology.
-:That said, there are worse understandings. Like vacuum==weoghtlessness, or at least lunar-strength gravity, but the moment you're inside the airlock you have full 1G of gravity. A cinematic convention, of course, where you handwave the less SFX-based 'indoor' scenes, or handwave some gravity-plate dookickey, or the hard-SF ones lampshade with magnetic/velcro footwear (the 'badly hard-'SF ones might even grant things in earthbound vacuum chambers an undue weightlessness, with nary the briefest of nods to ''anti-''gravity generators somehow being coupled to the airlessness).
+:That said, there are worse understandings. Like vacuum==weightlessness, or at least lunar-strength gravity, but the moment you're cycled through the airlock you have full 1G of gravity. A cinematic convention, of course, where you handwave the less SFX-based 'indoor' scenes, or handwave some gravity-plate dookickey, or the hard-SF ones lampshade with magnetic/velcro footwear (the 'badly hard-'SF ones might even grant things in earthbound vacuum chambers an undue weightlessness, with nary the briefest of nods to ''anti-''gravity generators somehow being coupled to the airlessness).
 :Which of course makes a layman confused over what's realistic and what isn't. I suppose you could argue that Randall's choice of words could be better, but it ought to be a "YKWIM" situation for those like us who perhaps see what trope he's invoking, and shouldn't bother those who take the handwaving at first value without staring too deeply into that particular abyss. [[Special:Contributions/172.70.86.115|172.70.86.115]] 15:13, 5 April 2025 (UTC)

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	I have a question about this comic. Correct me if I'm wrong, but friction isn't affected (or effected, see xkcd 326: Effect an Effect) by the presence of air, so wouldn't the physicist still be able to walk? He still would die, though, because you can only stay conscious in a vacuum for 10-15 seconds, and it would be nearly impossible to open the door in the vacuum.		I have a question about this comic. Correct me if I'm wrong, but friction isn't affected (or effected, see xkcd 326: Effect an Effect) by the presence of air, so wouldn't the physicist still be able to walk? He still would die, though, because you can only stay conscious in a vacuum for 10-15 seconds, and it would be nearly impossible to open the door in the vacuum.
	[[User:CKcoolidge\|CKcoolidge]] ([[User talk:CKcoolidge\|talk]]) 03:22, 5 April 2025 (UTC)CKcoolidge		[[User:CKcoolidge\|CKcoolidge]] ([[User talk:CKcoolidge\|talk]]) 03:22, 5 April 2025 (UTC)CKcoolidge
		+	:It's basically a shortcut for "on a frictionless surface in a vacuum" (with possibly some other caveats, in some scenarios, depending upon exactly what's being modeled and why). If you think about it, the vacuum can't ever really ''have'' a friction at all (at least this side of some fairly exotic reactionless propulsion ideas), so best treat that interpretation as a tautology.
		+	:That said, there are worse understandings. Like vacuum==weoghtlessness, or at least lunar-strength gravity, but the moment you're inside the airlock you have full 1G of gravity. A cinematic convention, of course, where you handwave the less SFX-based 'indoor' scenes, or handwave some gravity-plate dookickey, or the hard-SF ones lampshade with magnetic/velcro footwear (the 'badly hard-'SF ones might even grant things in earthbound vacuum chambers an undue weightlessness, with nary the briefest of nods to ''anti-''gravity generators somehow being coupled to the airlessness).
		+	:Which of course makes a layman confused over what's realistic and what isn't. I suppose you could argue that Randall's choice of words could be better, but it ought to be a "YKWIM" situation for those like us who perhaps see what trope he's invoking, and shouldn't bother those who take the handwaving at first value without staring too deeply into that particular abyss. [[Special:Contributions/172.70.86.115\|172.70.86.115]] 15:13, 5 April 2025 (UTC)

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 :the infinite plane of uniform density might be a reference to Nerd Sniping - [[User:Bb777|Bb777]] ([[User talk:Bb777|talk]]) 23:05, 2 March 2025 (UTC)
 ::[[356: Nerd Sniping]] - [[User:Bb777|Bb777]] ([[User talk:Bb777|talk]]) 23:06, 2 March 2025 (UTC)
-I have a question about this comic. Friction isn't affected (or effected, see xkcd 326: Effect an Effect) by the presence of air, so wouldn't the physicist still be able to walk? He still would die, though, because you can only stay conscious in a vacuum for 10-15 seconds, and it would be nearly impossible to open the door in the vacuum.
+I have a question about this comic. Correct me if I'm wrong, but friction isn't affected (or effected, see xkcd 326: Effect an Effect) by the presence of air, so wouldn't the physicist still be able to walk? He still would die, though, because you can only stay conscious in a vacuum for 10-15 seconds, and it would be nearly impossible to open the door in the vacuum.
 [[User:CKcoolidge|CKcoolidge]] ([[User talk:CKcoolidge|talk]]) 03:22, 5 April 2025 (UTC)CKcoolidge

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	:the infinite plane of uniform density might be a reference to Nerd Sniping - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:05, 2 March 2025 (UTC)		:the infinite plane of uniform density might be a reference to Nerd Sniping - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:05, 2 March 2025 (UTC)
	::[[356: Nerd Sniping]] - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:06, 2 March 2025 (UTC)		::[[356: Nerd Sniping]] - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:06, 2 March 2025 (UTC)
		+	I have a question about this comic. Friction isn't affected (or effected, see xkcd 326: Effect an Effect) by the presence of air, so wouldn't the physicist still be able to walk? He still would die, though, because you can only stay conscious in a vacuum for 10-15 seconds, and it would be nearly impossible to open the door in the vacuum.
		+	[[User:CKcoolidge\|CKcoolidge]] ([[User talk:CKcoolidge\|talk]]) 03:22, 5 April 2025 (UTC)CKcoolidge

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 If the black hat REALLY cared about physics, he would have put a spherical cow inside the frictionless vacuum room. [[Special:Contributions/172.68.138.178|172.68.138.178]] 20:43, 7 March 2023 (UTC)
 :the infinite plane of uniform density might be a reference to Nerd Sniping - [[User:Bb777|Bb777]] ([[User talk:Bb777|talk]]) 23:05, 2 March 2025 (UTC)
-::[[356:Nerd Sniping]] - [[User:Bb777|Bb777]] ([[User talk:Bb777|talk]]) 23:06, 2 March 2025 (UTC)
+::[[356: Nerd Sniping]] - [[User:Bb777|Bb777]] ([[User talk:Bb777|talk]]) 23:06, 2 March 2025 (UTC)

← Older revision		Revision as of 23:06, 2 March 2025
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	If the black hat REALLY cared about physics, he would have put a spherical cow inside the frictionless vacuum room. [[Special:Contributions/172.68.138.178\|172.68.138.178]] 20:43, 7 March 2023 (UTC)		If the black hat REALLY cared about physics, he would have put a spherical cow inside the frictionless vacuum room. [[Special:Contributions/172.68.138.178\|172.68.138.178]] 20:43, 7 March 2023 (UTC)
	:the infinite plane of uniform density might be a reference to Nerd Sniping - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:05, 2 March 2025 (UTC)		:the infinite plane of uniform density might be a reference to Nerd Sniping - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:05, 2 March 2025 (UTC)
		+	::[[356:Nerd Sniping]] - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:06, 2 March 2025 (UTC)

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	One can throw something to change one's motion in a frictionless vacuum.[[User:Username2\|Username2]] ([[User talk:Username2\|talk]]) 00:40, 27 July 2020 (UTC)		One can throw something to change one's motion in a frictionless vacuum.[[User:Username2\|Username2]] ([[User talk:Username2\|talk]]) 00:40, 27 July 2020 (UTC)
	If the black hat REALLY cared about physics, he would have put a spherical cow inside the frictionless vacuum room. [[Special:Contributions/172.68.138.178\|172.68.138.178]] 20:43, 7 March 2023 (UTC)		If the black hat REALLY cared about physics, he would have put a spherical cow inside the frictionless vacuum room. [[Special:Contributions/172.68.138.178\|172.68.138.178]] 20:43, 7 March 2023 (UTC)
		+	:the infinite plane of uniform density might be a reference to Nerd Sniping - [[User:Bb777\|Bb777]] ([[User talk:Bb777\|talk]]) 23:05, 2 March 2025 (UTC)

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	:You're turning these out really quickly. This is good stuff! '''[[User:Davidy22\|<u>{{Color\|#707\|David}}<font color=#070 size=3>y</font></u><font color=#508 size=4>²²</font>]]'''[[User talk:Davidy22\|<tt>[talk]</tt>]] 10:19, 7 April 2013 (UTC)		:You're turning these out really quickly. This is good stuff! '''[[User:Davidy22\|<u>{{Color\|#707\|David}}<font color=#070 size=3>y</font></u><font color=#508 size=4>²²</font>]]'''[[User talk:Davidy22\|<tt>[talk]</tt>]] 10:19, 7 April 2013 (UTC)
	One can throw something to change one's motion in a frictionless vacuum.[[User:Username2\|Username2]] ([[User talk:Username2\|talk]]) 00:40, 27 July 2020 (UTC)		One can throw something to change one's motion in a frictionless vacuum.[[User:Username2\|Username2]] ([[User talk:Username2\|talk]]) 00:40, 27 July 2020 (UTC)
		+	If the black hat REALLY cared about physics, he would have put a spherical cow inside the frictionless vacuum room. [[Special:Contributions/172.68.138.178\|172.68.138.178]] 20:43, 7 March 2023 (UTC)