The goal of the apollo moon flight was to put a man on the moon. according to charles garfield, who worked at nasa on the apollo mission, the flight was off-course 90 percent of the time between here and the moon. but apollo used that allowed it to make rapid course corrections.

The answer is an optical navigation system.

Explanation:

This device used a telescope and a sextant (an instrument that measures the angular distance between two visible objects). This way, the astronauts could map the position of the starts and find their location in space. After this information was recorded, it was sent to Earth and analysed through the NASA computers. The station could now send them any instructions related to velocity or course changes.

yes, since there is a positive and a negetive if the positive and negitive wasn't there wouldn't a flow electricity in it.

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.