>我收集,但可能是错误的,目前地球质量的增加约10 <一口> < /一口> 8公斤/天。在其他条件保持不变的情况下,一个希望地球获得了质量,自7500万年前,:> $ $ 75 ^ 6 \乘以365 \ * 10 ^ 8公斤= 6.496 \ * 10 ^ $ ${21}公斤首先,应该75美元\ times10 ^ 6美元,不是^ 6 75美元。孤独使你估计高了2373倍。纠正这个错误,获得质量只有2.7美元\ times10 ^{18}公斤美元,而不是6.5美元\ times10 ^{21} $公斤。其次,我从未见过任何大规模获得接近级。你引用的文章的评论给了一系列5到300吨/天。你10 ^ 8千克每美元的价值是100000吨/天,由至少333倍高(20000)。,1.5美元之间的质量获得\ times10 ^{14} $和$ 8.2 \ times10 ^{15} $公斤。这似乎很大,但它是与地球的质量相比很小。第三,你忽略大气损失。 Almost all of the atmospheric losses are in the form of hydrogen and helium. Most of the lost hydrogen results from water vapor that makes its way from the surface of the Earth into the stratosphere and is dissociated. Most of the lost helium results from radioactive decay in the Earth. Both forms of atmospheric loss represent a decrease in the mass of the Earth. Estimates on this mass loss also vary widely, from 100 to 300 metric tons per day. Putting these widely varying estimates together means the mass of the Earth is increasing by as much as 200 metric tons per day (+300 mass gain, -100 mass loss), or decreasing by as much as 300 metric tons per day (+5 mass gain, -300 mass loss, and since the numbers vary so widely, that's just -300). Either way, it's small potatoes, even over the course of 75 million years. This means *g* was between $13\times10^{-9}\,\text{m/s}^2$ smaller than it is now and $9\times10^{-9}\,\text{m/s}^2$ larger than it is now. Both of those numbers are very small.