VIDEO: 10 Things Science Still Hasn’t Figured Out Yet!

Science has solved a lot of mysteries in the past years, but there are still some things that we can’t find a logical explanation for or a reason of any kind. From why do we exist to how the universe actually appeared to things like what happens after death and why we do some things the way we do, there are plenty of things we still do not understand at all.
According to science.howstuffworks.com, when the Black Death ran rampant through cities in the Middle Ages, no one knew exactly how or why the awful disease spread. After many generations, we figured out that rat fleas and bacteria were to blame. It was a watershed moment for the power of science.
Centuries later, science continues to investigate difficult, bewildering questions every day. Yet even with brilliant minds converging via a worldwide computer network, we still don’t have all of the answers. In fact, some people might argue that we’re just now learning to ask the truly big questions.
What happens to us after we die? How did so much life appear on our planet when others seem devoid of any species at all? Who, if anyone, pulls the strings of our universe? Is it some all-powerful god in control or are there physical and mathematical principles driving the engine of our existence?
Sometimes, after centuries of missteps, we humans finally stumble into real answers to real questions, such as why diseases spread. Other times, we’re left grasping into the darkness of our own ignorance and wondering what any of it really means. In some cases, these questions are so difficult that even our children’s children will probably still be struggling for answers. But humanity will keep trying.
Scientists and sleep experts know when people normally dream. Typically, you dream during the rapid-eye movement(REM) portion of the sleep cycle. You can see when a person (or even your cat or dog) is experiencing REM sleep because their eyes zip to and fro and their bodies may twitch and jerk, too. The brain’s electrical patterns are very active in this phase, just like when you’re awake.
But researchers don’t really know WHY you dream.
Everyone on the planet would like a better idea of what happens to them after they die. And hey, there are billions of people who already know the answer to that question. Unfortunately, they can’t tell us about it because, well, they’re all dead.
The subject of the afterlife — or lack thereof — is one of the oldest questions troubling humankind. Will we all float off into eternal bliss? Will the evil among us be damned to the pits of Hell? Will our consciousness merely vanish once our bodies have expired? Or will we all be reincarnated as angry hippos or fluffy cats?
Scientist do understand the beginning stages of death. What happens after your brain clicks off, though, is still a complete mystery. Many people who have gone through near-death experiences and then come back to life speak about tunnels of light or flashbacks to life occurrences or conversations with loved ones who’ve passed away. All of those experiences could have biological origins, perhaps spurred by lack of oxygen or wild biochemical fluctuations.
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