p***y
发帖数: 32 | 1 四十五年后它将掠过半人马座，宇航员们将短暂苏醒，自中国太阳启程一个世纪后
，地球才能收到他们发回的关于半人马座的探测信息；这时，中国太阳正在飞向天狼星的
路上，由于半人马座三星的加速，它的速度将达到光速的百分之十五，将于六十年后，也
就是自地球启程一个世纪后到达天狼星，当中国太阳掠过这个由天狼星Ａ、Ｂ构成的双星
系统后，它的速度将增加到光速的十分之二，向星空的更深处飞去 |
a******y
发帖数: 61 | 2 Here we go again.
His novel is full with tech errors.
Does he seriously think somone can accelerate a spaceship to 0.15C by another
star's gravity? That violates the law of energy conservation. Without doing
the calculation, I could say that no matter can be accelerated to more
than several hundred kms/s by the gravity of a star not too much bigger than
our Sun.
It can't be larger than the escape speed of that particular star.
【在 p***y 的大作中提到】
: 四十五年后它将掠过半人马座，宇航员们将短暂苏醒，自中国太阳启程一个世纪后
: ，地球才能收到他们发回的关于半人马座的探测信息；这时，中国太阳正在飞向天狼星的
: 路上，由于半人马座三星的加速，它的速度将达到光速的百分之十五，将于六十年后，也
: 就是自地球启程一个世纪后到达天狼星，当中国太阳掠过这个由天狼星Ａ、Ｂ构成的双星
: 系统后，它的速度将增加到光速的十分之二，向星空的更深处飞去
|
s*******y
发帖数: 558 | 3 你要是来科幻小说里面找错误 那你是来对地方叻
【在 a******y 的大作中提到】
: Here we go again.
: His novel is full with tech errors.
: Does he seriously think somone can accelerate a spaceship to 0.15C by another
: star's gravity? That violates the law of energy conservation. Without doing
: the calculation, I could say that no matter can be accelerated to more
: than several hundred kms/s by the gravity of a star not too much bigger than
: our Sun.
: It can't be larger than the escape speed of that particular star.
|
i*********e
发帖数: 204 | 4 科幻小说里的错误就像苹果里的虫子，有虫子的苹果不一定不好吃，不过要是每口咬下去
都能吃到半条大虫子，那还真叫人倒胃口。
another
doing
than
狼星的
后，也
的双星
light
Centaurus is
arrived
【在 s*******y 的大作中提到】
: 你要是来科幻小说里面找错误 那你是来对地方叻
|
a******y
发帖数: 61 | 5 The point is he doesn't have to list that many numbers in the novel if he can't
make them look "real". Many SF novels are just fine without listing any accurate
numbers.
【在 s*******y 的大作中提到】
: 你要是来科幻小说里面找错误 那你是来对地方叻
|
