It is virtually like it is element of my deal. When there is a new trailer for some neat movie, I pretty substantially have to site about it. Of course in this circumstance it is the new trailer for Rogue 1: A Star Wars Tale. Now for the fun part—find some physics matter in the video that could be analyzed or stated. Go ahead and enjoy it once more. What could you discover? What about the motion of an exploding storm trooper? Nope, I presently did that. I could make a comparison in between blaster bolt speeds in the trailer and other motion pictures. Sure, that would operate but there are not a lot of blasters in the trailer. You can see that it is not so trivial finding one thing to examine, but I did it. In this article I will search at the motion of the weapon element of the Loss of life Star as it is becoming assembled. Let’s do it.
In get to get a evaluate of the pace of this element of the Loss of life Star, I will need two points. To start with, I need to use a video evaluation system. The essential notion is to search at the pixel area of an object in every frame of the video and from this get placement and time data. There are several solutions to accomplish this video evaluation, but I like the free and wonderful Tracker Online video Evaluation system. The next matter I will need is some form of scale in the video so that I can get a conversion in between pixels and some authentic length units. Fortunately, everybody pretty substantially agrees that the the primary Loss of life Star experienced a diameter of 120 km. With that, I can discover that the diameter of the circular element of the weapon (the deflector dish looking matter) is about 35 km. That is really all I need. I can now mark the area of the dish in every frame of the video to get the adhering to placement vs. time data. Oh, I should point out that I’m assuming the frame level is in authentic time. Also, the motion of the dish is not really perpendicular to the camera watch so that the precise velocity of the dish would be larger sized (we can search at this afterwards). This seems to be rather linear. The slope of a placement-time graph presents you the velocity in that dimension so we get a value of one.07 km/s. Yeah, that is pretty rapid for building operate. But it’s possible they are in a hurry. Let’s do one particular far more graph. How about the pace of the Imperial-class Star Destroyers that are in close proximity to the Loss of life Star? I can use the identical tips to discover their motion but I will need to rescale the video due to the fact these spacecraft are nearer to the camera. Wookiepedia lists the size of the ship at one.six km, so I will use that. Here’s what I get. From the slope of this line, I get a Star Destroyer velocity of .514 km/s. That is odd. The Loss of life Star dish is relocating quicker than the cruising pace of a Star Destroyer. This doesn’t appear to be like a great way to assemble a tremendous weapon. Homework There are still unanswered issues. In this article are some points for you to think about.
Suppose the dish is just a cylinder with a thickness of five km. If this dish is designed of titanium (just buying one thing), how substantially kinetic vitality would it have? Using the identical estimate for the mass as previously mentioned, determine the pressure essential to carry the dish to a quit in a length of 10 km. Just for comparison, you could think about a big dish crashing on the floor of the Earth (in its place of into the Loss of life Star). How significant would you need to drop an object so that it has an affect pace of one km/s—you can disregard air resistance. The dish seems to be relocating at a approximately regular pace. If the Loss of life Star has mass, it should exert a gravitational pressure on the dish and boost its pace. Suppose the Loss of life Star has a uniform density of one,000 kg/mthree. What should be the improve in pace of the dish as it moves this length? Would it even look to pace up? Estimate the angle the dish is relocating with respect to the camera to get a correction for the velocity. The Star Destroyers are nearer to the camera than is the Loss of life Star. Based on the relative angular dimensions of both equally the Loss of life Star and the Star Destroyer discover the length previously mentioned the floor of the Loss of life Star. See if you can make a python (GlowScript) model showing the area of the Loss of life Star and all the Star Destroyers. In this article is one thing related that I did for some TIE fighters. (If you perform all over with the lights, you should be equipped to reproduce the scene—even with the motion.)
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It is virtually like it is element of my deal. When there is a new trailer for some neat movie, I pretty substantially have to site about it. Of course in this circumstance it is the new trailer for Rogue 1: A Star Wars Tale.
Now for the fun part—find some physics matter in the video that could be analyzed or stated. Go ahead and enjoy it once more. What could you discover? What about the motion of an exploding storm trooper? Nope, I presently did that. I could make a comparison in between blaster bolt speeds in the trailer and other motion pictures. Sure, that would operate but there are not a lot of blasters in the trailer.
You can see that it is not so trivial finding one thing to examine, but I did it. In this article I will search at the motion of the weapon element of the Loss of life Star as it is becoming assembled. Let’s do it.
In get to get a evaluate of the pace of this element of the Loss of life Star, I will need two points. To start with, I need to use a video evaluation system. The essential notion is to search at the pixel area of an object in every frame of the video and from this get placement and time data. There are several solutions to accomplish this video evaluation, but I like the free and wonderful Tracker Online video Evaluation system.
The next matter I will need is some form of scale in the video so that I can get a conversion in between pixels and some authentic length units. Fortunately, everybody pretty substantially agrees that the the primary Loss of life Star experienced a diameter of 120 km. With that, I can discover that the diameter of the circular element of the weapon (the deflector dish looking matter) is about 35 km.
That is really all I need. I can now mark the area of the dish in every frame of the video to get the adhering to placement vs. time data. Oh, I should point out that I’m assuming the frame level is in authentic time. Also, the motion of the dish is not really perpendicular to the camera watch so that the precise velocity of the dish would be larger sized (we can search at this afterwards).
This seems to be rather linear. The slope of a placement-time graph presents you the velocity in that dimension so we get a value of one.07 km/s. Yeah, that is pretty rapid for building operate. But it’s possible they are in a hurry.
Let’s do one particular far more graph. How about the pace of the Imperial-class Star Destroyers that are in close proximity to the Loss of life Star? I can use the identical tips to discover their motion but I will need to rescale the video due to the fact these spacecraft are nearer to the camera. Wookiepedia lists the size of the ship at one.six km, so I will use that. Here’s what I get.
From the slope of this line, I get a Star Destroyer velocity of .514 km/s. That is odd. The Loss of life Star dish is relocating quicker than the cruising pace of a Star Destroyer. This doesn’t appear to be like a great way to assemble a tremendous weapon.
There are still unanswered issues. In this article are some points for you to think about.
Go Back again to Best. Skip To: Commence of Report.