A number of great discoveries have been discovered by scientists, but it turns out that the little things in our daily lives are still a mystery.
At least, there are seven things that we often encounter everyday, but there is no scientific explanation.
Why can anesthesia make us faint before surgery?
For those of you who have had surgery, must have experienced anesthesia or anesthesia. There is a local or total anesthetic. Both have different effects.
Local anesthesia is usually done by injecting drugs or spraying parts of our body with a spray of drugs to the body part is numb, while total anesthesia is usually done by inhaling the drug propofol or isofluran so we lose consciousness.
Can be done to plants, anesthesia is known to function by stopping the transmission of signals from the nerves in the body to our brain.
However, how is the explanation? One article published by New Scientist in 2011 explains that no one actually knows the explanation. However, recent research shows that scientists are drawing closer to a more vivid explanation.
How can a cat snore?
Cats snore when they feel happy, satisfied, or under pressure. However, why do they react with snoring?
Unfortunately, no one is really sure what makes the cat snore. (io9.Gizmodo)
Cats do not actually have a "snoring organ" or a special part of the cat's throat that serves to make a snore sound.
There are some explanations, for example, the cat has some kind of "neural oscillator" connected to the larynx, but no one knows for sure.
Meanwhile, there is another explanation that is a bit controversial because it considers snoring is beneficial to the health of cats.
What causes us to get drunk after drinking?
Until now, no one knows for sure why alcohol can make us feel dizzy and nauseous which is a sign of a hangover.
Many people think that drunk has something to do with dehydration, but many studies prove otherwise.
One of the best theories that exist today is that alcohol produces a toxic compound called acetaldehyde. These compounds are touted to make you drunk after drinking alcohol.
However, keep in mind also that according to science, the explanation is not 100 percent correct.
Why is ice slippery?
According to some scientists, ice is slippery because on its surface there is a liquid layer. When the blades of an ice skating shirt cross the ice, for example, will generate enough heat to melt the ice and form this layer.
However, in fact ice can still be slippery even if we just stand still on it. This is, according to other scientists' guesses, because of the "supersolid skin" that produces electrostatic forces that drive everything around it.
How can a pedal bike stand upright?
Everyone knows how to ride a bike, but no one can explain how we ride a bike.
That might sound weird, but it's true. Scientists have some ideas, but do not have the full picture yet.
One possibility is the gyroscope theory which shows that the spinning wheel produces a force that keeps the bike straight, or the theory of casters involving the steering wheel's axis connected to the ground.
Although it can explain why the bike stays stable, the two theories do not explain the balance of the bike.
We know this because researchers have assembled bicycles that do not follow the above theoretical procedures, and it turns out the bike can still be stable.
What causes static electricity?
You may have rubbed a ruler or balloon into the hair, and found that your hair could stand up when both of them were lifted. You know it is a static electricity event, but how does it explain?
We do not know how the static electricity works and once thought it was an energy imbalance.
However, other theories explain that static electricity exists because of the real transfer of matter. "The small piece of balloon really attaches to the hair interfering with the electrical patchwork on the balloon and causing attraction among the objects that we all know as static electricity," wrote Popular Science.
Is the universe just a simulation?
Elon Musk and some scientists once said that we may live in a simulation. According to them, if the simulation is good enough, we will never know for sure the answer from the allegations above.
Looking at our computer technology that is developing so fast, many people also think so, including NASA scientist Rich Terrile.
To The Guardian, Terrile says, if current technologies are increasing at the same pace in the next few decades, we will become a society in which artificial entities live in simulations that are much more abundant than humans.
However, recently a group of scientists have denied this assumption as opposed to the theory of quantum mechanics.