Editing Talk:2935: Ocean Loop
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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) | :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) | ::[[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) | ||
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Is there anyway to get notifications when a new comic comes out? I'm always late to these 21:27, 20 May 2024 (UTC)Jush | Is there anyway to get notifications when a new comic comes out? I'm always late to these 21:27, 20 May 2024 (UTC)Jush | ||
:I believe that there may be a Twitter (or X, or Xwitter, whatever we're calling it out) announcement direct from Randall's account, but I don't use that myself. And, like me, you were here ''right as it came out'', more or less, so so don't worry too much. You ''could'' write your own BOT-like poller (various ways, but do at least considerately throttle it back to checking perbaps no more frequently than every 15 minutes, 'cos too many people doing that would be 'problematical'), if you can't find a push-notifying service that does most of the hard work for you (and a whole host of other subscribers). [[Special:Contributions/172.70.85.241|172.70.85.241]] 22:23, 20 May 2024 (UTC) | :I believe that there may be a Twitter (or X, or Xwitter, whatever we're calling it out) announcement direct from Randall's account, but I don't use that myself. And, like me, you were here ''right as it came out'', more or less, so so don't worry too much. You ''could'' write your own BOT-like poller (various ways, but do at least considerately throttle it back to checking perbaps no more frequently than every 15 minutes, 'cos too many people doing that would be 'problematical'), if you can't find a push-notifying service that does most of the hard work for you (and a whole host of other subscribers). [[Special:Contributions/172.70.85.241|172.70.85.241]] 22:23, 20 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) | 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) | :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 | + | :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) |
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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) | 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) | ||
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) | 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) | ||
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− | + | 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"? | |
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