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作者 wxtab019 在 PTT [ Physics ] 看板的留言(推文), 共18則

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Fw: [請問] 凸透鏡

[ Physics ]3 留言, 推噓總分: +3

作者: ABCDEFGHHH - 發表於 2016/06/16 22:45(8年前)

1^F→wxtab019: 你是指平凸透鏡? 不管雙凸平凸凹凸都一樣06/16 22:40

Fw: [新聞] 穿越14億光年　重力波再次現身

[ Physics ]3 留言, 推噓總分: +1

作者: gold97972000 - 發表於 2016/06/16 10:42(8年前)

19^F→wxtab019: 比太陽大8倍+大14倍不是=太陽的9倍+15倍=太陽的24倍?06/19 07:53

20^F→wxtab019: 然後發散掉一個=太陽的23倍=比太陽重22倍?06/19 07:53

Fw: [請問] 關於聲音的物理問題

[ Physics ]7 留言, 推噓總分: +1

作者: mlikcat - 發表於 2016/03/21 20:22(8年前)

4^F→wxtab019: 你傳的到的定義是怎樣?03/21 19:29

26^F→wxtab019: 記得頻率介質等等也都會影響傳遞距離03/21 20:17

[問題] 請問向心力

[ Physics ]5 留言, 推噓總分: +2

作者: jenshi - 發表於 2015/11/15 22:13(8年前)

4^F→wxtab019: D吧會有這種點排法應該就是物體繞圓然後從側面拍11/17 07:11

5^F→wxtab019: 所以才會看起來在一直線上11/17 07:11

[問題] 在外太空會被凍死?

[ Physics ]14 留言, 推噓總分: +6

作者: longkiss0618 - 發表於 2015/10/02 15:33(8年前)

7^F→wxtab019: 要說的話都不會先被凍死壓力缺氧等等就夠先讓你死了10/02 15:56

8^F→wxtab019: 不過真空只能阻隔傳導對流所以溫度傳遞是比較慢10/02 15:57

9^F→wxtab019: 要說凍死還是會只是其他方式比較快所以比起來幾乎沒差10/02 15:59

13^F→wxtab019: 我說的就是只剩輻射阿不過和其他因素比起來速度慢很多10/02 17:12

Fw: [新聞] 光速可以慢下來！　蘇格蘭科學家實驗打破

[ Physics ]5 留言, 推噓總分: +1

作者: tideecho - 發表於 2015/01/24 02:10(9年前)

15^F→wxtab019: 不就介質不同會影響速度而已...?01/24 01:07

19^F→wxtab019: 第一句自己都說都說是沒有障礙物然後又說讓他穿過隔層01/24 01:08

21^F→wxtab019: 喔所以是穿過之後速度還是變慢的?01/24 01:08

24^F→wxtab019: 如果以粒子說來看的話會有能量衰減的問題的想法嗎01/24 01:09

27^F→wxtab019: 不過看起來應該是某些特定介質才會吧?01/24 01:11

30^F→wxtab019: 或是需要有加上其他條件01/24 01:11

32^F→wxtab019: 不知道速度減少比是差多少重複多次能讓光子變很慢嗎?01/24 01:12

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