Dürer & 測距儀2022d138 教科書風 e044 物体の速度測定 後半 second halfの 04c ２つの太陽

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second half 04c Two suns Determining the speed of an object.

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で　やっと　今回の本題 ２つの太陽

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Now, finally, the main topic for this discussion: two suns.

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pic.twitter.com/kJc4INbA39

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俺の網膜を Green 眼のアイコンにして 太陽とで　サングラス窓面を挟む

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Considering the sunglasses as a window surface, You've turned my retinas into green eye icons, and between the green eye and Sun, there's a window.

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x軸を　orange 窓面が　光速の半分速度で動いた ｔ＝０のいま　 ｘ＝０．５の　位置に このorange 窓面が　存在する

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The orange window plane moves along the x-axis at half the speed of light. Now at t=0.　 At x=0.5 This orange window plane exists. DeepL

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At  t = 0 , the orange window is located at  x = 0.5 , and it is moving with a velocity equal to half the speed of light along the x-axis. ChatGPT

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だが　このorange 窓面　存在に関係なく Green 太陽からの光線と Red 太陽からの光線が ｔ＝０ ｘ＝０．５に　届く

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However, regardless of the presence of the orange window, both the green ray of light from the sun and the red ray of light from the sun reach t = 0, x = 0.5 .

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pic.twitter.com/u7EksNN8l0

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だから　　 orange 窓面が　この数直線を 左から右に　動き 水色 窓面が　この数直線を 右から左に　異なる速度で動いても ｔ＝０の x=０．５位置で 同じ光景を見る

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Therefore, even if the orange window moves from left to right along this number line and the turquoise window moves from right to left at a different speed, both windows reaching t = 0, x = 0.5 will observe the same scene.

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戦闘機２機が ほぼ同じ空域を ほぼ同じ時刻に ニアミス　ギリギリで　すれ違う

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Two fighter jets pass each other in very close proximity in almost the same airspace and at almost the same time, narrowly avoiding a near miss.

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pic.twitter.com/O1wdXxJNPv

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このとき 夜空の　遠い宇宙から来た光線複数は このGreen　交叉点（こうさてん）に 届いた 同じ光景が　見える 慣性速度 慣性系が　違うのに

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At this moment, multiple light rays from the distant universe in the night sky reach the green intersection point, creating the same observed scene, despite the difference in inertial velocities and inertial frames.

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戦闘機の大きさを　点として扱い 戦闘機の視野 大きさを点として扱う この場合　今の話が成立する ミンコフスキー時空図の点大きさのように

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Treat the size of the fighter as a dot The size of the fighter's field of view is treated as a dot. In this case, what we've just said holds true. Like the size of a point in the Minkowski space-time diagram DeepL

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If we treat the size of the fighter jets as points and consider the size of their field of view as points as well, then the current discussion would hold. This approach is analogous to considering point-like events in a Minkowski spacetime diagram. ChatGPT

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ミンコフスキー時空図では 有限大きさの　過去光円錐 底面が 登場する 有限性　大きさ これが　イメージの世界の視野広さに 関係してくる

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In Minkowski spacetime diagrams, the finite size of the past light cone's base appears. This finiteness and size are related to the breadth of the visual field in the world of imagination.