p*l
2 楼
地球磁场是怎么产生的, 有定论吗?
r*s
4 楼
没准哪天北磁极翻转到南半球去了
s*2
11 楼
瞎扯的太多。
“磁场一消失,大气也会被慢慢剥离。”大气是被磁场吸住的吗?实际上地磁场反转的
时候它的强度会降到很弱(5%甚至更低) ,大气也没有消失。还有geomagnetic
excursions的时候磁场也会变弱。
“地球大概上亿年反一次”就更扯了,google一下很难么?
“磁场一消失,大气也会被慢慢剥离。”大气是被磁场吸住的吗?实际上地磁场反转的
时候它的强度会降到很弱(5%甚至更低) ,大气也没有消失。还有geomagnetic
excursions的时候磁场也会变弱。
“地球大概上亿年反一次”就更扯了,google一下很难么?
l*o
12 楼
听收音机说如果苹果手机两年不更新,里面的狗狗地图你把你带沟里去。需要科普来理
解这个。
解这个。
r*s
17 楼
Mars, which has little or no magnetic field, is thought to have lost much of
its former oceans and atmosphere to space. This loss was caused, at least
in part, by the direct impact of the solar wind on Mars' upper atmosphere.
Earth's other close planetary neighbor, Venus, has no appreciable magnetic
field, either. Venus is also thought to have lost nearly all of its water to
space, in large part owing to solar wind-powered ablation.
its former oceans and atmosphere to space. This loss was caused, at least
in part, by the direct impact of the solar wind on Mars' upper atmosphere.
Earth's other close planetary neighbor, Venus, has no appreciable magnetic
field, either. Venus is also thought to have lost nearly all of its water to
space, in large part owing to solar wind-powered ablation.
f*l
19 楼
再等几年就可以去西伯利亚看极光了,说不定漠河也能看到极光了。
s*2
20 楼
其实如果我们有生之年能看到地磁反转会是一件激动人心的事件!当然通讯设备、电网
什么的会遭到可能是毁灭性的破坏,许多末日片里的情景将会在现实里出现。
什么的会遭到可能是毁灭性的破坏,许多末日片里的情景将会在现实里出现。
k*l
22 楼
:瞎扯的太多。
:
whoops,我是半内行,只注意研究可以理解的部分了。不理解的数据随便诌了一下---
反正这个地质记录误差很大。。。
a*e
26 楼
失水,严格说是失氢
地球环境水分不见得能到很好层
火星那点引力差点意思
of
to
★ 发自iPhone App: ChinaWeb 1.1.5
【在 r*s 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: Mars, which has little or no magnetic field, is thought to have lost much of
: its former oceans and atmosphere to space. This loss was caused, at least
: in part, by the direct impact of the solar wind on Mars' upper atmosphere.
: Earth's other close planetary neighbor, Venus, has no appreciable magnetic
: field, either. Venus is also thought to have lost nearly all of its water to
: space, in large part owing to solar wind-powered ablation.
地球环境水分不见得能到很好层
火星那点引力差点意思
of
to
★ 发自iPhone App: ChinaWeb 1.1.5
【在 r*s 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: Mars, which has little or no magnetic field, is thought to have lost much of
: its former oceans and atmosphere to space. This loss was caused, at least
: in part, by the direct impact of the solar wind on Mars' upper atmosphere.
: Earth's other close planetary neighbor, Venus, has no appreciable magnetic
: field, either. Venus is also thought to have lost nearly all of its water to
: space, in large part owing to solar wind-powered ablation.
k*l
28 楼
:这是猜测 还是已经被证明的定论
:
是公认的理论,因为太多非线性方程所以只是数值模拟“证明”了,细节上还有些小漏
洞。
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