太阳内部光速不到1 mm/s？为何没有人感兴趣？

所有跟贴·加跟贴·新语丝读书论坛

送交者: suprathinker 于 2012-09-12, 13:28:21:

太阳半径7亿米，如果需要1万年才能穿越，光速不到1 mm/s。

冲击波（声波）的速度也不至于这么小吧。

这么低的能量传播速度如何解释太阳是稳定的？如果gamma光子是被离子阻挡了，而核反应是在不断进行的，这样不会导致内部能量堆积（温度上升）而使得核反应加速吗？

单个被散射的光子虽然是随机的，但是由于产生的光子数目是巨大的，与入射光子同向的被散射光子还是很多。

不懂！

所有跟贴:

are you kidding? It is immoral to spread bullshit intensionally - 008 (127 bytes) 2012-09-12, 15:51:21 (683414)
What so special about it? - steven (83 bytes) 2012-09-12, 14:29:25 (683399)
- n_water = 1.33, n_plasma < 1! n_sun ~ 10^11. Explain. (无内容) - suprathinker (0 bytes) 2012-09-12, 14:37:10 (683403)
这“科普”灌输错误概念，误人子弟。请不要滥用物理名词，哗众取宠 (无内容) - pgss (0 bytes) 2012-09-12, 14:18:27 (683393)
因为这不是光速！这是作者在玩文字游戏。其实是能量传递速度 - pgss (26 bytes) 2012-09-12, 14:13:06 (683391)
- no. That is still light speed, but not 'c'. - steven (80 bytes) 2012-09-12, 14:26:40 (683397)
  - The diffraction index inside the sun is 10^11? (无内容) - suprathinker (0 bytes) 2012-09-12, 14:31:34 (683402)
    - the core of sun has density 150 times of water, and it is - steven (35 bytes) 2012-09-12, 17:07:56 (683422)
Only massive mass/gravity can affect the speed of light (无内容) - silxirt (0 bytes) 2012-09-12, 13:57:58 (683384)
- And this is "true" with the "time" it takes, which is affected by gravity - silxirt (134 bytes) 2012-09-12, 14:02:33 (683385)
  - GR effect is surely negligible here. (无内容) - suprathinker (0 bytes) 2012-09-12, 14:06:02 (683386)
Get it right please, the light is not passing straight to the surface - silxirt (139 bytes) 2012-09-12, 13:56:52 (683383)
- it is not even reflection/refraction. scattering has a relaxation time as well (无内容) - pgss (0 bytes) 2012-09-12, 14:19:34 (683395)
怎么定义（1）低？（2）稳定？ (无内容) - chouqilozi (0 bytes) 2012-09-12, 13:38:49 (683374)

加跟贴