主题:美国求学执教的见闻和感受(0) -- changshou
in classic physics, "up to" SR, we are all basically talking about 惯性参照系vs 惯性参照系 運動/movements, where in general we don't really have 加速度 in between 惯性参照系 per concept of 惯性参照系
if there is 加速度, it must be 引力, assuming a local 均匀引力場, meaning all 加速度 for all objects is same (such as 重力加速度为常数, and in a 保守力作功与路径无关) regardless of their 質量, _伽利略变换Galilean Transformation still holds, 低能条件 & local;
引力、慣性、狹義相對論及弱等效原理 wiki for math details
so, jumping out of brain box=basically jumping out of mind 重力場, using an analogy, regardless of where you are and what you are doing, or you would be torn down into "nothing (human does die) " by 保守力 in that particular 保守力場
to do the jumping, one obviously needs GR, or the 加速度 you buy will be a fake one, and you are still in a local 均匀引力場, your local 保守力場;
from there on, GR.
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🙂老兄的文字相当不严谨啊,但牛顿定律不符合正是我想说明的 3 山海马甲 字2774 2013-07-01 00:19:26
🙂"坐标系不是物体,其是没有什么加速度的", thx 晓兵 字589 2013-07-01 15:02:56
🙂引力场量子化, still a day dream 晓兵 字582 2013-07-01 20:05:04
🙂local, 加速度=引力
🙂伽利略时空, 闵科夫斯基时空, GR 时空 2 晓兵 字526 2013-07-01 15:38:39
🙂"]此帖被举报违规",ok, but reason? 晓兵 字0 2013-07-03 19:06:40
🙂卡拉比—丘空间 晓兵 字1593 2013-07-01 15:44:24
🙂又在摆优越感了。 你是我导师?在评价我的论文吗? 三力思 字3221 2013-07-01 09:49:14