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Post by Flying Monkeys on Jul 7, 2019 12:08:03 GMT
in a localised curve, rather than just in straight lines.
(Deep space meaning ignore the effect of gravity from other spatial bodies.)
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Post by Flying Monkeys on Jul 13, 2019 21:03:09 GMT
Well?
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Post by ayatollah on Jul 14, 2019 16:25:00 GMT
What if C A T really spelled dog?
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Post by yggdrasil on Jul 14, 2019 16:43:22 GMT
Yes.
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Post by Flying Monkeys on Jul 14, 2019 18:42:29 GMT
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Post by yggdrasil on Jul 15, 2019 10:02:02 GMT
That wasn't the question. Mind your own business. |
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Post by Flying Monkeys on Jul 15, 2019 11:03:34 GMT
That wasn't the question. Mind your own business. It is now the question. How? And you mind your own business. |
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Post by yggdrasil on Jul 15, 2019 12:37:46 GMT
That wasn't the question. Mind your own business. It is now the question. How? And you mind your own business. Done my bit. Will let someone else sort this one out. |
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Post by bartlesby on Jul 15, 2019 18:23:40 GMT
True.
Even in a vacuum, a ship can change its bearing (3rd law of motion) so it could travel on a curve provided it had the fuel to do so.
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Post by Flying Monkeys on Jul 15, 2019 18:33:04 GMT
True. Even in a vacuum, a ship can change its bearing (3rd law of motion) so it could travel on a curve provided it had the fuel to do so. But how? The ship accelerates only in the direction of the thrust, like the game Asteroids - straight lines. There is no gravity or wind resistance to apply other forces that the ship can use to create a curve. |
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Post by bartlesby on Jul 15, 2019 18:40:33 GMT
True. Even in a vacuum, a ship can change its bearing (3rd law of motion) so it could travel on a curve provided it had the fuel to do so. But how? The ship accelerates only in the direction of the thrust, like the game Asteroids - straight lines. There is no gravity or wind resistance to apply other forces that the ship can use to create a curve. Correct, but thrusters on a ship wouldn't simply be placed at one point, like say, on the rear. There would be additional, adjustable thrusters positioned on the sides and even front to allow for rotational movement and course correction. You don't need a large amount of thrust to change orientation in a vacuum. If your rear engines are your powerhouse, you shut them on and off as needed for forward momentum while the side thrusters adjust your bearing. |
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Post by Flying Monkeys on Jul 15, 2019 18:56:38 GMT
Correct, but thrusters on a ship wouldn't simply be placed at one point, like say, on the rear. There would be additional, adjustable thrusters positioned on the sides and even front to allow for rotational movement and course correction. You don't need a large amount of thrust to change orientation in a vacuum. If your rear engines are your powerhouse, you shut them on and off as needed for forward momentum while the side thrusters adjust your bearing. Yes, I agree with the configuration. I am thinking that the ship has six engines, one on each face assuming it is a cube. Each pair controls the acceleration/deceleration along one of the x, y and z axes. So to start, one engine fires to get it moving. Then the opposite engine builds from very small thrust to full thrust in a sine wave to bring it to a stop in that direction. Simultaneously, one of the engines at right-angles starts up slowly and builds up in a sine wave to full thrust to get it moving in that direction. In my model, the bearing of the shop does not change, but I'm sure that would work as well. The key part is that the engine thrusts follow sine waves so that the changes in direction of the ship are so minute that they appear to be a curve (which is a series of infinitesimally small straight lines). Now, what country is associated to the Mexican wave? |
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Post by bartlesby on Jul 15, 2019 19:08:03 GMT
Correct, but thrusters on a ship wouldn't simply be placed at one point, like say, on the rear. There would be additional, adjustable thrusters positioned on the sides and even front to allow for rotational movement and course correction. You don't need a large amount of thrust to change orientation in a vacuum. If your rear engines are your powerhouse, you shut them on and off as needed for forward momentum while the side thrusters adjust your bearing. Yes, I agree with the configuration. I am thinking that the ship has six engines, one on each face assuming it is a cube. Each pair controls the acceleration/deceleration along one of the x, y and z axes. So to start, one engine fires to get it moving. Then the opposite engine builds from very small thrust to full thrust in a sine wave to bring it to a stop in that direction. Simultaneously, one of the engines at right-angles starts up slowly and builds up in a sine wave to full thrust to get it moving in that direction. In my model, the bearing of the shop does not change, but I'm sure that would work as well. The key part is that the engine thrusts follow sine waves so that the changes in direction of the ship are so minute that they appear to be a curve (which is a series of infinitesimally small straight lines). Now, what country is associated to the Mexican wave? Oh no, not that puzzle. Did anybody even get closer to the answer? Also, what you're suggesting is kinda how ships work in space. Let's say you shoot a rocket into an endless vacuum, a straight shot, using its rear boosters. With no gravity influencing it, it will just travel in a straight line (not counting any hypothetical curvature of the universe). So you shut off the rear boosters and it just sails along at the same velocity and same heading, potentially endlessly. Now, if you fire a thruster (or a series of thrusters) on the side, you can reorient the ship and the position of the rear boosters. It's going to be sailing in the same direction with no change while this is happening but if you kick on those rear boosters again, the ship will begin to change its heading to wherever it is now facing opposite of the rear boosters. If you time this properly, by alternating between boost and correction, you can achieve a curve. |
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Post by Flying Monkeys on Jul 15, 2019 19:21:32 GMT
Also, what you're suggesting is kinda how ships work in space. Kind of but not quite - they still use 1 main engine and then a few small gas outlets, I believe, to rotate them. Most importantly, they are still travelling in straight lines. The key point to my configuration is to use full size engines and for their power to go up and down in a sine wave - that's the important part to ensure a smooth deceleration in one direction and a simultaneously smooth acceleration in a perpendicular direction, thereby achieving a semi-circular curve, like an X-Wing swooping about in space in Star Wars, which is what got me thinking about this in the first place while sitting on the toilet during an ad break. They did not but poster harmonica developed one of the questions well in this thread: imdb1.freeforums.net/thread/7785/solve-monkeys-quiz-spoilersIt's calling you...... |
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Post by Harold of Whoa on Jul 15, 2019 20:24:11 GMT
But how? The ship accelerates only in the direction of the thrust, like the game Asteroids - straight lines. There is no gravity or wind resistance to apply other forces that the ship can use to create a curve. Like in the game Asteroids, by thrusting and changing attitude at the same time. You don't need six thrusters in a coordinated sequence, although that would work; just a main thruster in continuous operation while the thrust line is being changed, i.e. attitude change. Is that really what you were getting at? Here's a picture of a Trident missile that lost attitude control on launch. It's not in deep space, but the principle is the same inasmuch as neither gravity nor aerodynamic effects are creating its curved path.  |
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