Most of us are far from science and understand little about it, but does this prevent us from learning interesting scientific facts about the world that surrounds us? A lot of interesting, funny and amazing things are hidden from our eyes.
Proven scientific facts
- Human activity is detrimental to the planet. So, over the past two centuries, 2.1 trillion tons of carbon dioxide have been released into the atmosphere, and the acidity of the ocean has increased by almost a third.
- Dark eyes are a dominant trait, so there are many more dark-eyed people in the world. In a couple where parents have dark and light eyes, children with dark eyes are more likely to be born.
- Also, eye color can change. Sometimes in a child with light eyes, as they age, they become dark due to the accumulation of melanin. In older people, on the contrary, the eyes may turn pale.
- People can even have red eyes, but only albinos. This is caused by a lack of melanin in the iris.
Miscellaneous scientific facts
- Satellites are located at a distance of 35 thousand km from the planet. It is from this distance that cable signals are received.television.
- One twentieth of a second is enough to identify an object.
- The smell of semen is caused by the protein spermine. Its main function is to protect spermatozoa.
- Scientific interesting facts also apply to our daily lives. The sodas that many people love contain artificial sweeteners that make you drink more and, accordingly, get fat.
- Saccharin, an artificial sweetener, was invented by accident. During tests to create a cure for an ulcer, a scientist decided to taste the mixture and it turned out to be sweet.
- Why do snowflakes fall slowly? The thing is that they are mostly air, and only 5% ice, which makes their flight graceful.
- Have you heard that the first flying machine was created by Leonardo da Vinci in the 16th century? He was indeed a brilliant scientist and artist, but in this area he was significantly ahead of the ancient Greek philosopher Archytas, who made a similar discovery as early as the 4th century BC. e.
Facts about people
- There is a certain altitude above sea level where the pressure is so low that a person's blood can boil. This point is called the Armstrong limit, and it is located at an altitude of 19200 meters.
- Human bones are similar in structure and mineral content to some types of corals.
- A person can tolerate temperatures of 200 degrees Celsius. This was proven by an experiment conducted in the USA in 1990.
- Russian researchers have determined that people who overload themselves with thoughts are much more likely to suffer from alcoholism.
- Some people can write equally well with both hands.
- The human heart begins to beat four weeks after conception.
- Blood moves through the capillaries at a speed of 109 cm/h, while it passes through the heart at a speed of 1.6 km/h.
- Human taste buds change in 10 days, so the same foods can seem different to us in a short period of time.
A little about the world around
- Scientific facts come to us each in a different form. For example, have you ever wondered why a rainbow appears in the sky? This phenomenon causes the refraction of light in raindrops and fog. They react differently to light, so the rainbow is colorful.
- Scientific facts will help solve even some everyday problems. For example, a simple knowledge of biology will help determine if an egg is fresh. The fact is that gas forms in the stale and this keeps it on the surface in the water, while the fresh sinks in the water.
- Sunlight is best reflected by snow, it accounts for about 90% of reflected light, while land can reflect no more than 10-20%.
- The purest alcohol is vodka because it has the fewest impurities.
Space is waiting for us
- The length of the day on Mars is almost the same as on Earth, they are only 39 minutes longer.
- The fastest planetThe solar system is Jupiter. It only takes ten hours for it to complete a full rotation.
- The galaxy we are in contains about 200-400 billion stars.
- At a decent distance, a spacecraft can take a photo of a million square kilometers of our planet in just ten minutes. You can do the same with an airplane in four years.
Interesting-incredible
- Scientific facts can sometimes even make you smile. For example, the French scientist Jean-Antoine Nollet, in his extravagant experiments, once made two hundred monks jump.
- During the flight, the sensitivity of our receptors changes, so we taste sweet and s alty differently.
- The semi-mythical G-spot was discovered by a German gynecologist in the 1940s. However, she gained popularity only with the release of a book on sexuality in 1980.
- Whiskey is he althier than wine because it contains elements that can prevent heart disease.
- The ignorant Spanish conquistadors did not know much about precious metals, so platinum means “silver” in translation. It seemed to them too refractory and therefore its value was half that of silver.
- Have you ever wondered where oil came from? In fact, oil was once alive, that is, it was formed from plankton, which once, tens of millions of years ago, floated in the sea.
Results
The concept of scientific fact is quite broad,therefore, this category of knowledge can include a lot of information from different areas of knowledge. To recognize a fact as such, it must not only be proved, but also verified. The problem with scientific fact is that very often this evidence is neglected and the product is presented in its raw form, but science will always be able to distinguish truth from lies.
