Science and technology have made a lot of progress in the last decade. Many new discoveries, new inventions and modifications in previous theories have been done owing to continuous handwork work of scientists in this regard. There are so big names like Einstein, Isaac Newton, Marie Curie, Charles Darwin and many more that had done such amazing and astounding work in the field of science. However to our surprise there are certain Simple Questions we still do not know the answers even in the modern 21st century.
There are some things that a knowledgeable, expert Scientist cannot answer and reacts just like a layman to these questions. Here are some simple questions we still don’t know the answer and you will be shocked to read that is it true? We don’t know the answers to these questions yet? That may make you laugh and curious at the same time.
10. Very Simple Questions Why do we Sleep?
What we know through previous studies on the species discovered up till now, most of them sleep. Nearly every creation of this earth requires a good night’s sleep to make his or her body fresh and to make it comfortable at rest just like all humans. It shows that sleep is one of the most important things living organisms need but it is one of the simple questions we still don’t know the answers of that.
Sleep is such a topic on which we don’t know much. There are certain theories given on this question we still don’t know the answer that why we sleep. According to one theory it is said that our brain cells require cleaning the mess after the whole day learning and working. Sleeping allows the brain to toss out all the useless information.
According to another theory it is said that sleep allows the brain cells to reinforce the stuff that you may need. However experimental studies shown that sleep is crucial to memories and learning processes. But these theories could not be applied on plants and animals. Latest theories of gene mutations have changed the meaning of above theories. Instead of all the theories given, why we sleep, is one of the simple questions we still don’t know the answer of it.
9. Why do Cats Purr?
It is considered that the cat purr when they enjoy and feel happy but it is one of the mysterious questions we still don’t know the answer. The exact reason of purring and also the exact anatomy and physiology of purring are still not known. Some of the studies showed that it occurs due to laryngeal contraction and relaxation but it lacks evidence.
However it was found that the sound frequency of purring is near the frequency of bone breaking but this anatomical superpower has not been found yet. This lack of explanation makes it one of the simple questions we still don’t know the answer.
8. Why do the Birds Migrate?
It is one of the known things that birds do travel over long distances from one area to another for the purpose of escaping winters and laying eggs. However why the birds do so is one of the imple questions we still don’t know the answer. It is considered that the birds migrate under the effect of magnetic field of Earth but it fails to explain the migration and inhibition of other areas. This mysterious behavior of birds is among the simple questions we still don’t know the reason behind.
7. Why is the ice Slippery?
The ice is slippery, it is a known fact, but the reason behind is one of the simple questions we still don’t know the reason. This fact of ice being slippery is being known since ages but the reason is still unknown. One of the hypotheses to explain the reason was that the surface of ice remains watery because of the air around it even after being frozen. This hypothesis was proved right as well but still the layer is so thin to prevent friction hence it was rejected. Many of the scientists say that it is not slippery while others say that pressure exerted by a person makes it slippery but there is no satisfactory explanation and it is one of the simple questions we still don’t know the reason.
6. How many Species of Animal Exist on Earth?
Yes! This is one of the simple questions we still don’t know the answer and we are not even close to the answer. In this modern time of technology nobody is much interested to explore the undiscovered areas around the globe. The exact number of species existing on the earth is not even known by taxonomists who say that they do not have any idea about it. There are around fifteen thousand new species discoveries that are added each year in the total 2 million species that are discovered yet. According to an estimate there are around 100 million based on researches however this still one of the questions we still don’t know what to say about yet.
5. What is the cause of Hypnic Jerks?
This is a very common phenomenon experienced by nearly everyone but it is one of the simple questions but we still don’t know the explanation. Hypnic jerks are actually the falling sensation when we are near to sleep and it wakes you up to start sleeping again. Surprisingly Science has no idea how this works and this among questions we still don’t know the reason behind hypnic jerks.
A hypothesis was put forth that said our body has developed this jerking phenomenon when we used to sleep on trees and branches and it used to save us from falling but it had no support of evidences. There is one more hypothesis which stated that it occurs due to slowing of our body processes during sleeping however none of these explain the reason that makes it such a question we still don’t know how to approach it.
4. Why do Giraffes have long Necks?
Giraffe are one of the herbivores with long necks however the explanation of the long neck is not found yet and it is one of the simple questions we still don’t know the answer. It has been tried to explain that the long necks of giraffe are because of the process of evolution. The giraffe with longer necks were able to survive but this theory was not accepted.
Another theory explained that it helped with the females and also they have long necks because of their long legs. But in actual the long neck of giraffe puts it in trouble to eat and drink. Science does not have any other reason to explain these simple questions.
3. How do we store and Retrieve Memories?
Every person has memories in his life that are stored in brain of a person. They can be long term or short term. With the passage of time new memories are stored in the brain and previous ones are forgotten or become blurry. However the mechanism of storage of memories is one of the simple questions we still don’t know the explanation of that. Science has explained many processes related to our body but the functions related to brain are still unexplained.
Even there are many simple questions we still don’t know the answer. Scientists have tried to explain the process of storage of the memories and their retrieval that many brain areas are involved in it with neurons making several connections with one another. No doubt this is one of the mysterious and simple questions we still don’t know the answer.
2. How does the Gravity Work?
This is one of the simple questions we still don’t know the answer but we are learning about gravity since our childhood in our science books. It looks so simple that gravity is the attraction the earth imparts on you as a result everything thrown upward come back to the ground. But how gravity actually works is the question we still do not know the explanation of this simple question.
Scientists have put forth a lot of theories to explain the gravity which is one of the four. You will be thinking that what is to answer in the function of gravity but it is not as simple as it looks. This force that holds the whole of the universe and the whole galaxy together is basically the weakest force of the universe.
Unlike all the other forces, gravity does not work using its particles as it has none. Adding to the confusion of this question, as soon as you consider the effect of gravity on small particles, it does not work the way it does on larger particles. Both the quantum physics and real world physics can’t be related to each other. So it is one of the simple questions but we still don’t know the answer.
1. What are Dreams?
Every person has experienced the process of dreaming and it is a common phenomenon. However not everybody sees the same dreams, the different dreams of different persons depend upon basically the brain activity. But what are dreams? This is one of the questions we still do not know the answer.
According to the theories of science dreams are basically the manifestation of the events or stuff present in our memories that we did not think about in the day. The modern explanation of dreams tells us that dreams symbolize the thoughts present in the depth of our brains.
Some scientists think that our brain decides to go in LSD mode at night however the others think that dreams are nothing but the images of random moment we experience in the day and dreams have no deep meaning or sign in them. However none of this theory satisfies the scientist and they are still looking to solve this simple question but we still don’t know the answer.