Talk:2935: Ocean Loop - Revision history

172.69.130.225: added reply

2024-05-28T13:36:17Z

added reply

162.158.74.48 at 23:19, 26 May 2024

2024-05-26T23:19:48Z

These Are Not The Comments You Are Looking For at 19:38, 26 May 2024

2024-05-26T19:38:48Z

172.70.160.249 at 08:50, 26 May 2024

2024-05-26T08:50:56Z

These Are Not The Comments You Are Looking For: Suicide is a crime punishable by death in certain jurisdictions.

2024-05-26T02:36:00Z

Suicide is a crime punishable by death in certain jurisdictions.

NiceGuy1 at 06:24, 25 May 2024

2024-05-25T06:24:21Z

NiceGuy1 at 06:14, 25 May 2024

2024-05-25T06:14:40Z

172.70.163.120 at 15:22, 22 May 2024

2024-05-22T15:22:57Z

141.101.98.164 at 12:51, 22 May 2024

2024-05-22T12:51:15Z

172.70.162.17 at 10:41, 22 May 2024

2024-05-22T10:41:40Z

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 :We're still calling 4760 x 4295 "massive" in a time when many tvs and monitors are 4k? I mean I guess it's technically massive compared to the website's default, a downright ''embarrassing'' 635 x 573 -[[Special:Contributions/172.71.255.7|172.71.255.7]] 19:37, 21 May 2024 (UTC)
 ::[[1475: Technically]] 20 million pixels are technically massless, not massive. [[Special:Contributions/172.71.98.46|172.71.98.46]] 19:49, 21 May 2024 (UTC)
 :Bad bot EDIT: Oops, wording threw me off, it did the RIGHT thing this time! Bravo! "Standard size" made me think it had generated/found a regular sized image and saved THAT again! [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:14, 25 May 2024 (UTC)

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	:Apropos of ''what'' links, may I ask? I must have missed that particular context. (Also hoping this isn't from personal experience, as this isn't really a good place or method to seek help or considerate recognition. Best we could ever do is point out better places and trust they work.) [[Special:Contributions/172.70.160.249\|172.70.160.249]] 08:50, 26 May 2024 (UTC)		:Apropos of ''what'' links, may I ask? I must have missed that particular context. (Also hoping this isn't from personal experience, as this isn't really a good place or method to seek help or considerate recognition. Best we could ever do is point out better places and trust they work.) [[Special:Contributions/172.70.160.249\|172.70.160.249]] 08:50, 26 May 2024 (UTC)
	::Explanation, Paragraph three, Line two, "This video, among other potentially dangerous water slides, shows 2 such loop-de-loop water slides (1 and 2)." And no, not from personal experience of any kind. [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 19:38, 26 May 2024 (UTC)		::Explanation, Paragraph three, Line two, "This video, among other potentially dangerous water slides, shows 2 such loop-de-loop water slides (1 and 2)." And no, not from personal experience of any kind. [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 19:38, 26 May 2024 (UTC)
		+	:::Something's lost in transmission, then. Neither of the linked-to video(segment)s, or what follows, have anything to do with "pretending to die". Hence, it seems it's mentioned totally apropos of nothing. Glad we aren't to be worried about you, though. Strange phrasing rather left me wondering if you were heading in a different direction entirely. [[Special:Contributions/162.158.74.48\|162.158.74.48]] 23:19, 26 May 2024 (UTC)

← Older revision		Revision as of 19:38, 26 May 2024
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	Its all fine and dandy if you want to "pretend" to die. (See the above video links.) In fact, the experiences are advertised as "fun". Yet the moment someone wants to try out the real thing, almost everyone throws a hissy fit. :( [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 02:36, 26 May 2024 (UTC)		Its all fine and dandy if you want to "pretend" to die. (See the above video links.) In fact, the experiences are advertised as "fun". Yet the moment someone wants to try out the real thing, almost everyone throws a hissy fit. :( [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 02:36, 26 May 2024 (UTC)
	:Apropos of ''what'' links, may I ask? I must have missed that particular context. (Also hoping this isn't from personal experience, as this isn't really a good place or method to seek help or considerate recognition. Best we could ever do is point out better places and trust they work.) [[Special:Contributions/172.70.160.249\|172.70.160.249]] 08:50, 26 May 2024 (UTC)		:Apropos of ''what'' links, may I ask? I must have missed that particular context. (Also hoping this isn't from personal experience, as this isn't really a good place or method to seek help or considerate recognition. Best we could ever do is point out better places and trust they work.) [[Special:Contributions/172.70.160.249\|172.70.160.249]] 08:50, 26 May 2024 (UTC)
		+	::Explanation, Paragraph three, Line two, "This video, among other potentially dangerous water slides, shows 2 such loop-de-loop water slides (1 and 2)." And no, not from personal experience of any kind. [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 19:38, 26 May 2024 (UTC)

← Older revision		Revision as of 08:50, 26 May 2024
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	Its all fine and dandy if you want to "pretend" to die. (See the above video links.) In fact, the experiences are advertised as "fun". Yet the moment someone wants to try out the real thing, almost everyone throws a hissy fit. :( [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 02:36, 26 May 2024 (UTC)		Its all fine and dandy if you want to "pretend" to die. (See the above video links.) In fact, the experiences are advertised as "fun". Yet the moment someone wants to try out the real thing, almost everyone throws a hissy fit. :( [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 02:36, 26 May 2024 (UTC)
		+	:Apropos of ''what'' links, may I ask? I must have missed that particular context. (Also hoping this isn't from personal experience, as this isn't really a good place or method to seek help or considerate recognition. Best we could ever do is point out better places and trust they work.) [[Special:Contributions/172.70.160.249\|172.70.160.249]] 08:50, 26 May 2024 (UTC)

← Older revision		Revision as of 02:36, 26 May 2024
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	:Not how I think you envisage it. The ship is (by definition) no more massive than the water it displaces, so centripetal forces won't send it 'outwards' to hit the track-bottom. If it was a floating ball, it would remain on the curving surface, and never sink through thee stream. Cyclonic selarators merely exagerate the differences in density, and the simplified buoyancy equations do not give the ship any reason to 'sink' if it starts off floating. (This may channge if significant induced bubbles/cavitation in the water-jet itself reduced the density of the water, like a gas discharge beneath a ship can cause it to sink on otherwise calm seas.)		:Not how I think you envisage it. The ship is (by definition) no more massive than the water it displaces, so centripetal forces won't send it 'outwards' to hit the track-bottom. If it was a floating ball, it would remain on the curving surface, and never sink through thee stream. Cyclonic selarators merely exagerate the differences in density, and the simplified buoyancy equations do not give the ship any reason to 'sink' if it starts off floating. (This may channge if significant induced bubbles/cavitation in the water-jet itself reduced the density of the water, like a gas discharge beneath a ship can cause it to sink on otherwise calm seas.)
	:But, depending upon various rotational momentum issues, the rapid change of water-engle might not be matched by the 'localised relevelling' of the ship that makes it effectively nose-dive into the water (like the depictions of the Titanic, but faster) and then have the bow strike the chute-structure (although the flow of water might still be enough to directly counteract the angle and force it back). Whether this is survivable is another issue. And, if it doesn't happen, you've got a water piling up on(/over?) the stern so long as the relative waterspeed and shipspeed have it effectively steaming backwards at high velocity (and with a geometrically 'dipped' stern). [[Special:Contributions/141.101.98.164\|141.101.98.164]] 12:51, 22 May 2024 (UTC)		:But, depending upon various rotational momentum issues, the rapid change of water-engle might not be matched by the 'localised relevelling' of the ship that makes it effectively nose-dive into the water (like the depictions of the Titanic, but faster) and then have the bow strike the chute-structure (although the flow of water might still be enough to directly counteract the angle and force it back). Whether this is survivable is another issue. And, if it doesn't happen, you've got a water piling up on(/over?) the stern so long as the relative waterspeed and shipspeed have it effectively steaming backwards at high velocity (and with a geometrically 'dipped' stern). [[Special:Contributions/141.101.98.164\|141.101.98.164]] 12:51, 22 May 2024 (UTC)
		+
		+	Its all fine and dandy if you want to "pretend" to die. (See the above video links.) In fact, the experiences are advertised as "fun". Yet the moment someone wants to try out the real thing, almost everyone throws a hissy fit. :( [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 02:36, 26 May 2024 (UTC)

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 Could this be a reference to Cannonball Loop, the infamous looping waterslide that used to be at New Jersey's notorious Action Park (aka Traction Park or Class Action Park). [[Special:Contributions/172.70.175.74|172.70.175.74]] 15:11, 21 May 2024 (UTC)
 Isn't this a giant https://en.m.wikipedia.org/wiki/Cyclonic_separation - device, where the ship will be smashed onto the bottom of the "track"? {{unsigned ip|172.71.160.30|05:05, 22 May 2024}}
 :Not how I think you envisage it. The ship is (by definition) no more massive than the water it displaces, so centripetal forces won't send it 'outwards' to hit the track-bottom. If it was a floating ball, it would remain on the curving surface, and never sink through thee stream. Cyclonic selarators merely exagerate the differences in density, and the simplified buoyancy equations do not give the ship any reason to 'sink' if it starts off floating. (This may channge if significant induced bubbles/cavitation in the water-jet itself reduced the density of the water, like a gas discharge beneath a ship can cause it to sink on otherwise calm seas.)
 :But, depending upon various rotational momentum issues, the rapid change of water-engle might not be matched by the 'localised relevelling' of the ship that makes it effectively nose-dive into the water (like the depictions of the Titanic, but faster) and then have the bow strike the chute-structure (although the flow of water might still be enough to directly counteract the angle and force it back). Whether this is survivable is another issue. And, if it doesn't happen, you've got a water piling up on(/over?) the stern so long as the relative waterspeed and shipspeed have it effectively steaming backwards at high velocity (and with a geometrically 'dipped' stern). [[Special:Contributions/141.101.98.164|141.101.98.164]] 12:51, 22 May 2024 (UTC)

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 As a ballpark, spherical cow, estimate: To complete the loop, the centripetal force at the top of the loop has to equal the gravitational force of the ship.  Centripetal force is mv^2/r, and gravitational force is mg, so we have v_top^2/r = g, v_top = sqrt(gr).  At the top of the loop, the height is 2r, which means you have potential energy 2mgr, and kinetic energy 1/2 mv_top^2 = 1/2 mgr.  Thus, at the bottom of the loop, you need kinetic energy 2mgr + 1/2 mgr = 5/2 mgr.  This gives us the velocity at the bottom of the loop, 1/2 mv_bot^2 = 5/2 mgr, v_bot = sqrt(5gr).  Call the cruise ship 300 m long, the diameter of the loop appears to be about 3 ship lengths, so r = 450 m.  So the ship has to enter the loop at 150 m/s, 540 km/h, 335 mph.  That's about Mach 0.45, which is probably the first time a cruise ship speed has ever been described with a Mach number.  [[Special:Contributions/172.70.135.75|172.70.135.75]] 13:03, 21 May 2024 (UTC)
 :Hopefully, they will also have handed out machs to all the passengers...[[Special:Contributions/172.69.43.131|172.69.43.131]] 15:12, 21 May 2024 (UTC)
 :The speed is probably much easier to achieve than it sounds, though, as the water will already by at a very high speed and the ship will only need to accelerate the difference between it's final speed and the water's. So we'd also need to find out the speed of the water to know what kind of engine the ship would need to achieve this. [[Special:Contributions/172.70.162.17|172.70.162.17]] 10:41, 22 May 2024 (UTC)
 There are human scaled water slide loopings, but they start by having the human drop vertically and then "only" loop up with ~45° inclination: {{w|AquaLoop}}. This probably would not easily scale to cruise ship sizes. Also starting the looping horizontally and going upwards may be a challenge to implement. --[[Special:Contributions/172.71.160.32|172.71.160.32]] 14:29, 21 May 2024 (UTC)
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 Could this be a reference to Cannonball Loop, the infamous looping waterslide that used to be at New Jersey's notorious Action Park (aka Traction Park or Class Action Park). [[Special:Contributions/172.70.175.74|172.70.175.74]] 15:11, 21 May 2024 (UTC)
-Isn't this a giant https://en.m.wikipedia.org/wiki/Cyclonic_separation - device, where the ship will be smashed onto the bottom of the "track"?
+Isn't this a giant https://en.m.wikipedia.org/wiki/Cyclonic_separation - device, where the ship will be smashed onto the bottom of the "track"? {{unsigned ip|172.71.160.30|05:05, 22 May 2024}}