A remarkable discovery, recently?
2017-10-23 8:34 pm
At the instant of fertilization by a sperm cell, the egg emits a flash of light. My question is: Would this phenomenon qualify as the point at which human life begins?
回答 (3)
2017-10-23 8:37 pm
So I looked it up, and you're wrong.
There is NO "flash of light", but seevral newspapers such as the Telegraph reported there was, because they;re frankly morons who misunderstood what was actually reported.
Here's the explanation of what the paper was ACTUALLY talking about:
http://www.ncregister.com/blog/trasancos/pro-lifers-there-is-no-flash-of-light-at-conception
There is NO "flash of light", but seevral newspapers such as the Telegraph reported there was, because they;re frankly morons who misunderstood what was actually reported.
Here's the explanation of what the paper was ACTUALLY talking about:
http://www.ncregister.com/blog/trasancos/pro-lifers-there-is-no-flash-of-light-at-conception
2017-10-23 9:43 pm
No, it doesn't. That's a complete and total lie.
The video that has prompted this idiotic notion was from an experiment that used a dye that fluoresces when calcium is released. It has been known for many years that a release of intracellular calcium is the trigger that starts the changes that accompany fertilization; this experiment found a way to make that trigger visible. OUTSIDE OF THIS PARTICULAR ARTIFICIAL EXPERIMENT, NO SUCH FLASH EXISTS.
The video that has prompted this idiotic notion was from an experiment that used a dye that fluoresces when calcium is released. It has been known for many years that a release of intracellular calcium is the trigger that starts the changes that accompany fertilization; this experiment found a way to make that trigger visible. OUTSIDE OF THIS PARTICULAR ARTIFICIAL EXPERIMENT, NO SUCH FLASH EXISTS.
2017-10-23 11:11 pm
No. Human life began about 195,000 years ago.
... or maybe you would like to use different criteria.
People who look like us: 195,000 years ago
People who think like us: 50,000 years ago (upper Paleolithic cultural revolution)
People who live like us: 20,000 years ago (invention of agriculture)
... or maybe you would like to use different criteria.
People who look like us: 195,000 years ago
People who think like us: 50,000 years ago (upper Paleolithic cultural revolution)
People who live like us: 20,000 years ago (invention of agriculture)
收錄日期: 2021-04-24 00:52:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20171023123445AANu5bo