the moon

there is a face on the moon that i visible by the naked eye. and when its full and on the horizon it looks amazing.but did you know that the moon is actually rotating on an axis, just like planet earth, while it is orbiting the around the earth?want to know why the face of the moon is the only side we see? well here is why. Earth has a rotational period of 24 hours. so each hemisphere can get equal number of light from the sun. the earth's orbit period is about 365 days. that the amount of time it takes the earth to rotate around the sun.(keep that in mind). Now the moon, has a rotational period of about 27 days, its orbital period is about 27 days. so when the moon is opposite of the sun and is very bright we will always see the same face, and when the moon is dark it will be closer to the sun so the moons own shadow from the sun prevents us from seeing the other side.its not a big mystery, but just a random fact many people may ask.

Organs

Wow, just learned some even more crazy stuff.aparrantly as a fetus in the womb we have both sets of sex organs the male and female. And if our body does not produce. Certain hormone at a certain time our organs began to develop into the female organs. But if it does begin to develop then the organs develop into the make internal sex organs.the two type of systems are called müllerian system (for the female sex organs ) and wolffian system( male sex organs). So it goes into much more detail but that is pretty much the summation of what goes on.naturally a fetus wants to be a girl, but certain hormone does not allow for it.
-credit for the picture goes to "physiology of behavior eleventh edition by Neil R. Carlson."

Sleep

Wow. Sleep is crazy, it's hard to explain, but the there are 4 stages of sleep, stage 1,2,3,4 and REM sleep. Your brain is most active in REM sleep. You go through the whole sleep cycle every 90 minutes, every 90 minutes you wake up and then immediately fall back asleep. As the night progresses, you do not enter 3rd or 4th cycle, you'll go into REM sleep.
REM sleep (described as rapid eye movement) is when the brain consolidating all the material that it has seen and Experienced. Baby's sleep in REM about 2/3 of the day. So as you can see sleeping is good for you, it allows for the mind to refresh it self and store all the things you experienced throughout the day. Most of the mind is being used while sleeping, even more than being awake.your body does go into a state of paralysis that allows it to relax and let the mind refresh.