主题：【文摘】月球之迷 -- 面包车

"伪科学主张超感官知觉、心灵能、闹鬼、飞碟和其它奇异现象。但我们只需要一条基本的科学原理，即能量守恒定律，即可证明我们对这些主张持极端怀疑论的立场是正当的。"

能量守恒定律并不与 "超感官知觉、心灵能、闹鬼" 矛盾. 另, 老衲对"伪科学"这个叫法不感冒, 应该称为"边缘科学"比较合适. 量子力学就显示有非局域瞬时感应. 人的意识也是一个体系(生物神经网络)的量子态, 为何不能与远处的事物entangle呢? 虽然现在的实验只显示在量子缠绕态中的粒子会退缠绕, 但其逆过程也应该可能(当然需要额外的能量), 正如历代修道者所证悟. "超感官知觉"被证实过 (e.g. 钱学森提出做人体科学 当然不是毫无根据 头脑发昏, 他是有实验证据的. 释尊就说过"六根互用", i.e., 各种感官可以作别的使用, 如耳朵看字. Note, 老衲可不是FLG, 佛经(楞严经)中早就明白指出其为邪道.)

老衲基本同意上文用潮汐现象(特:固体潮)以解释月球的一面总是朝向地球.

但上文试图证伪月球为空心的建模过程过于简化, 以致其推论缺乏说服力. 首先, 月球外表有68km厚的岩石层, 由久远劫以来的陨石撞击后的残余(部份熔化)堆积而成. 里面是坚硬的月幔(60-1000 km) 现在假设此月幔是特种合金 无比坚硬, 为"空心月球"的承力外壳, 厚60km. 但月球内部当然不会是全空的(如上文中粗心地假设的那样), "外星人"造个空壳有什么意思? 内部必然有建筑结构. 姑且假定是楼层结构(忽略直立的墙,柱) 每3米高的楼层有30cm厚的楼板, 于是球内1/10的体积为建筑结构所占据. 这样算下来这种承力材料的比重是月球平均密度的5倍而已, 大概就是汞的比重, 完全不荒谬! 而且, 就算用上文的模型及其参数, 结论也不太离谱, 因为上文中体积计算公式犯了个低级错误(不知是否有意为之), 使得过于高估了月壳的比重:

V 应该正比于 R3，故"挖去的体积是原来的"(1708/1738)^3≈94.9%, 所以月球的平均密度应为原来的19.6倍 = 65g/cm3.

月球是空心的猜想不是为了想引入"外星人"而作, 而是基于月震的"余音绕梁,三日不绝", 象敲钟的震荡. 参见:

http://history.nasa.gov/EP-95/surface.htm

(scroll down to "Passive Seismic Experiment" and "Active Seismic Experiment")

http://vesuvius.jsc.nasa.gov/er/seh/ap12.html

(scroll to

"Meantime the experiments we had left on the lunar surface were busy recording and transmitting data. They all worked well, with one exception, and were really producing useful data. One unexpected result came from the seismic experiment recording the impact of Intrepid on the surface after we had jettisoned it. The entire Moon rang like a gong, vibrating and resonating for almost on hour after the impact. The best guess was that the Moon was composed of rubble a lot deeper below its surface than anybody had assumed. The internal structure, being fractured instead of a solid mass, could bounce the seismic energy from piece to piece for quite a while.

The same phenomenon was observed at two ALSEP stations when the Apollo 14 crew jettisoned their lunar module Antares and programmed it to crash between the Apollo 12 and 14 sites.

With every mission after Apollo 12, additional seismic calibrations were obtained by aiming the Saturn S-IVB stage to impact a selected point on the Moon after separation from the spacecraft. The seismic vibrations from these impacts lasted about three hours...")

上面是NASA的链接.

当然, 有别的模型也可以解释该现象. 但至少"空心月球"模型并不能被证明不合理. 另: 前文引用的陨石速度具体数据不正确, 并不说明那个结论完全错误. 定性上讲, 确实在高速陨石撞击下, 月球的crater的深度相对其广度要浅很多(对比地球的counterparts), 暗示月球的crust下面有很坚硬的东西.

究竟是不是有外星人, 老衲不知. 不过如果说地球是唯一有智慧生物的行星 我是不信的, 就像说上帝造了这个特殊的星体供人类居住, 宇宙也绕着它转一样荒谬.