[討論] 力學觀念~
教授問:一支原子筆為何用拇指與食指壓很難彎曲
但用折的很好彎曲
教授說不是細長比也無關尤拉柱理論
只說與勁度有關
他叫我們再回去想想
各位高手有誰知道!
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 122.117.211.248
推
05/11 22:09, , 1F
05/11 22:09, 1F
→
05/11 22:31, , 2F
05/11 22:31, 2F
推
05/11 22:51, , 3F
05/11 22:51, 3F
→
05/11 22:53, , 4F
05/11 22:53, 4F
→
05/11 22:55, , 5F
05/11 22:55, 5F
推
05/11 22:55, , 6F
05/11 22:55, 6F
→
05/11 22:56, , 7F
05/11 22:56, 7F
推
05/11 23:00, , 8F
05/11 23:00, 8F
推
05/11 23:15, , 9F
05/11 23:15, 9F
→
05/11 23:17, , 10F
05/11 23:17, 10F
推
05/11 23:19, , 11F
05/11 23:19, 11F
推
05/11 23:24, , 12F
05/11 23:24, 12F
→
05/11 23:25, , 13F
05/11 23:25, 13F
→
05/11 23:26, , 14F
05/11 23:26, 14F
→
05/11 23:26, , 15F
05/11 23:26, 15F
推
05/11 23:28, , 16F
05/11 23:28, 16F
→
05/12 00:17, , 17F
05/12 00:17, 17F
推
05/12 12:57, , 18F
05/12 12:57, 18F
→
05/12 13:24, , 19F
05/12 13:24, 19F
→
05/12 13:24, , 20F
05/12 13:24, 20F
→
05/12 13:26, , 21F
05/12 13:26, 21F
→
05/17 10:04, , 22F
05/17 10:04, 22F
Civil 近期熱門文章
12
29
10
34
PTT職涯區 即時熱門文章
12
26