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作者 yeahhuman 在 PTT [ Physics ] 看板的留言(推文), 共812則

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[問題] 屏蔽現象

[ Physics ]21 留言, 推噓總分: +15

作者: TSMCRD - 發表於 2012/10/21 12:35(13年前)

5^F推yeahhuman:厚度2cm的餅乾盒不會覺得太厚嗎，汽車鋼板都沒那麼厚吧10/21 12:47

[問題] 關於自然對數 e

[ Physics ]45 留言, 推噓總分: +14

作者: milkcake - 發表於 2012/10/18 09:39(13年前)

26^F推yeahhuman:我的看法也是從微分方程來的，只要大自然有變化10/18 16:04

27^F→yeahhuman:就會有是e構成的特徵解10/18 16:04

Re: [請益] 為何光速乃宇宙中最快速?

[ Physics ]7 留言, 推噓總分: +4

作者: pipidog - 發表於 2012/10/13 07:52(13年前)

6^F推yeahhuman:推，好看10/13 09:31

[問題] Halliday適合初學者自修嗎？

[ Physics ]41 留言, 推噓總分: +18

作者: armpitelder - 發表於 2012/09/12 21:08(13年前)

21^F推yeahhuman:既然是自修，先把架構搞清楚，再看教科書之類的比較好吧09/13 10:23

22^F→yeahhuman:我覺得可以先把觀念物理看完，那套還蠻好看的09/13 10:23

[問題] 為什麼汽車霧燈要用黃色的

[ Physics ]9 留言, 推噓總分: +6

作者: thewid - 發表於 2012/09/12 02:41(13年前)

8^F推yeahhuman:我怎麼記得是人眼敏感度的問題，跟穿透力無關09/13 01:32

9^F→yeahhuman:照理說，紅光波長比較長，穿透力應該更好吧09/13 01:32

[閒聊] 有個永動機的想法 (天馬行空)

[ Physics ]54 留言, 推噓總分: +12

作者: OxfordGOD - 發表於 2012/08/18 21:42(13年前)

1^F→yeahhuman:你講的東西，月球繞地球不就也算是永動機?08/18 21:46

9^F→yeahhuman:重力就算會大於摩擦力，摩擦力還是會慢慢消耗掉所有能量08/18 22:09

Re: [好奇] 沒有東西的速度能超越光速..

[ Physics ]10 留言, 推噓總分: +1

作者: OxfordGOD - 發表於 2012/07/19 20:14(13年前)

1^F→yeahhuman:星球脫離速度超光速，因為它是空間自身的拉長，而不是07/20 00:24

2^F→yeahhuman:空間中的距離07/20 00:24

[問題] 指北針南北極易位

[ Physics ]21 留言, 推噓總分: +11

作者: madturtle - 發表於 2012/07/18 17:11(13年前)

10^F推yeahhuman:我在台北也會看太陽判定方位啊，有指北針不是很方便嗎07/19 14:55

[題目] 光速變慢會否影響月蝕時間？

[ Physics ]26 留言, 推噓總分: +5

作者: kyoiku - 發表於 2012/07/15 16:38(13年前)

3^F推yeahhuman:國中題目的話，應該是不變。但想深一點的話，月蝕期間07/16 14:13

4^F→yeahhuman:地球也轉動了某個角度，光行進距離會變吧07/16 14:13

5^F→yeahhuman:所以光速若和聲速一樣，月蝕時間好像就不一樣了07/16 14:14

[新聞] 美原子對撞發現或有上帝粒子

[ Physics ]18 留言, 推噓總分: +7

作者: j0958322080 - 發表於 2012/07/03 17:21(13年前)

3^F→yeahhuman:這無所謂會不會被搶走，現在就是因為Tevatron就算有結果07/04 00:05

4^F→yeahhuman:sigma也很低，還不到所謂"發現"的門檻07/04 00:06

5^F→yeahhuman:也就是說若要給出一個有意義的結論，應該仍得靠CERN07/04 00:07

7^F推yeahhuman:就算是人訂的，也不會訂一個2.9那麼低的值...07/04 13:55

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