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Can anyone tell me how the Apollo 11 astronauts managed to keep the space shuttle flying in space and take off from the moon if there is no atmosphere on the moon and presumably no oxygen in space or on the moon for rocket fuel combustion?
I was just gonna start something like this!! Why does wind make us feel cooler? Seriously. No I won't google it because where's the romance in that? But yeah, I mean ok I understand if it's cold, more cold wind makes us colder...but when it's hot, why does wind make us cooler as well? After all, it's just more hot air blowing at us. If anything speed heats up molecules even more, amirite? One of you smart assholes answer me. Or one of you dumb-but-capable-of-googling idiots.
Because the wind blows away the body heat that surrounds us.
I was just gonna start something like this!!
Can anyone tell me how the Apollo 11 astronauts managed to keep the space shuttle flying in space and take off from the moon if there is no atmosphere on the moon and presumably no oxygen in space or on the moon for rocket fuel combustion?
The body gives off heat through the evaporation of moisture that's on the skin, and wind speeds up evaporation. Thus, it makes you feel cooler.
If time slows as velocity increases toward c, then if a person theoretically traveled at c couldn't they continually broadcast their actions to an audience that perceives them at the normal rate of time? How would such actions be interpreted by the audience? The broadcaster could do something like, say, recite the Declaration of Independence, but the audience would receive it as if no time had actually past. So the broadcaster is aware of his recital of the Declaration of Independence and it thus would be said to have actually occurred, yet is such an act even perceptible by the audience? And if not, would it actually occur in 'reality'? What if the velocity of the broadcaster was slowed to only near-c? How would the audience then perceive the recital?
If time slows as velocity increases toward c, then if a person theoretically traveled at c couldn't they continually broadcast their actions to an audience that perceives them at the normal rate of time? How would such actions be interpreted by the audience? The broadcaster could do something like, say, recite the Declaration of Independence, but the audience would receive it as if no time had actually past. So the broadcaster is aware of his recital of the Declaration of Independence and it thus would be said to have actually occurred, yet is such an act even perceptible by the audience? And if not, would it actually occur in 'reality'? What if the velocity of the broadcaster was slowed to only near-c? How would the audience then perceive the recital?
Me no understand deiner Gendankexperiment!!! Is he travelling towards or away from the audience?
if you are travelling at the speed of light you cant transmit anything because the transmittal is also at the speed of light
Because the wind blows away the body heat that surrounds us.
The body gives off heat through the evaporation of moisture that's on the skin, and wind speeds up evaporation. Thus, it makes you feel cooler.
Ding, ding, ding. Evaporating liquid carries away energy (heat), leaving the surface cooler. But you didn't need to be told to go stand under a hose during the summer.
Is that relevant? If so, I'm interested in answers for both possibilities.