40 facts that you learned in the twentieth century that are totally wrong today
These facts of elementary school are not held in the 21st century.
The 20th century may not seem so long, but when you look commonly taught lessons in schools, then, science to technology to culture in history, you will realize how long there is really. That's why we have compiled some of the greatest rumors that have been considered "facts" that have been demonstrated since it would be wrong.
So, read it, and know that our solar system is not as big, our coffee is not so dangerous and Thomas Edison can get a lot more credit than it deserves. And for amazing things, we hope to learn in the future, consult the30 the craziest predictions on future experts say they go.
1 Pluto was a planet
It seems that yesterday, we were walking in Pluto thought was part of the planets of our solar system. We had songs and nursery rhymes to help us remind us how much it had come from the sun and how much it was smaller than the other planets. Then, the International Astronomical Union occurred in August 2006 and stated that it was not a planet at all. Instead, it's a dwarf planet. I'll miss you, Pluto! And for more knowledge to exhaust your friends, here's100 great facts on everything.
2 There is no gravity in space
While the image of floating astronauts has weighting has led to the perception that space is a place of zero gravity, there is a lot of gravitational sweaters that occur there. AsYale Scientific.Chidi akusobi explains: "It is important to distinguish" the weightless "of" zero gravity ". The astronauts feel without form because their shuttle is in a continuous free fall state. However, the spatial shuttle never falls on the Earth, because it moves horizontally at about 18,000 km / h, opposing the force of gravity. If the spaceship was not moving quite quickly, it would fall in the grip of the gravitational field of the earth and would fall to the earth. "And for more amusing trivia on thingsa lot closer to the house, here is20 amazing facts that you have never known about your smartphone.
3 Sputnik caught the us.s. totally out of keeping.
The popular narrative of the spatial race is that the Soviet launch ofSputnik Caught the Eisenhower administration entirely off guardian and creates a constant shock of fate that our cold war enemies were further in their space program. However, historians have recently pointed out that, while many scientists were surprised, the administration was well aware of how the Soviet program had progressed (thanks to the photos of Spy U-2 aircraft). In fact, US officials were slightly relieved, since the legality of spatial exploration was still in the air at the time, then going first, the USSR has facilitated the task of the United States.
4 The nearest planet of the sun is the hottest
We believed that mercury, the closest planet of the sun was the hottest. But the researchers have found that the hottest planet is, in fact, Venus, which can reach temperatures of 863 degrees Fahrenheit (mercuryalone Can reach 800 degrees Fahrenheit). The reason is that Venus has a thicker atmosphere, trapping in the heat of the sun. And for more good knowledge, here is10 amazing facts that will make you smarter.
5 You can see the great wall of China space
It was a generally held belief for years, based on nothing but anecdotes. As Alan Bean, Apollo 12 astronaut clarified: "The only thing you can see from the moon is a beautiful sphere, mainly white, blue and yellow spots, and from time to time for a certain green vegetation."
6 The fat is terrible
Health fadadads go and go, but a fear of afflicted fat the United States for decades. Diet books and nutrition regiments urged us to cut all the fats of what we eat. But it turns out, not only was it practically impossible to eliminate the fat of the food we put in our body, it was not really good for us we would have said.
This myth took a big success in 2006 witha studyNearly 50,000 menopausal women who have followed incidents of heart disease, stroke and cardiovascular disease. It turned out that if a person in high fat or low fat plans had little effect on these consequences of health. In addition, since we learned that healthy greases are essential. As proof, see these40 foods to eat after 40 years.
7 All Foods of Large Grease Increase Cholesterol
It was a just as false related and believe that took place for a long time. The waxy cholesterol that lives fat in the blood was supposed to increase our risk of heart attacks and brain strokes we maintaining eggs and other high cholesterol foods. It turns out, cholesterol more concerns the types of fat that we consume, with saturated and trans greases being the most likely higher cholesterol levels.
8 All carbohydrates are created equal
We swayed believing carbohydrates were great for our energy and health, the biggest enemy to keep our weight down. It has become clear now that the truth is somewhere in the middle.
"The main reason [bad reputation carbohydrates] is that when people think" carbohydrates ", they think" starch ", like white rice, pasta, potatoes or white bread," Susan Bowerman, Director of Worldwide Nutrition Education and training at Herbalife Nutrition,RecountNBC News. "While many refined carbohydrates do not work much on the nutritional level, there are many" good carbohydrates "- healthy foods that provide carbohydrates that your body absolutely need every day to work properly. For good carbohydrates to eat, see the10 Healthiest Carbohydrates that does not derify your six-pack.
9 Search "Net" Carbohydrates on Nutrition Labeling
On the same subject, looking at the "net carbohydrates" of an element has often been proposed as a solution to determine how good / bad that particular food product was. In fact, just understanding the total amount of carbohydrates tells us little about their quality.
"For example, I do not drink milk because of the carbohydrate content, but the carbohydrate in milk is not added, it is simply natural sugar (lactose)," Bowerman has also underlinedNBC News. "But it's hard to say from a carbohydrate label are natural and are added, and unless you read the list of ingredients as well, you will not know the source of the carbohydrate. »
10 Café breaks your growth
A common belief a few years ago was that letting drink coffee for children would be stunting their growth a notion that was promotedat least as far As in the early 1900s by the postum alternative coffee. But these statements have been demystified more recently. For example,a study 81 adolescents over a six-year period found no correlation between daily ingestion of caffeine and growth or bone density. And yes, this false belief is one of theThe worst myths of food still persist.
11 Any sugar is created equality
In 1992, the US Department of Agriculture presented the "Pyramid Food Guide" poses some simple rules on the proportion of greases, vegetables, carbohydrates and sugars we should eat. It turns out, he had some problems, and these started at the top, with the little triangle that pushed to keep "sugar", as a very limited part of a diet. This lumped all sugars together, whether it came from gelled bears or apples and pears. In fact, not all the sugar is bad for you, a fact that we finally learn to accept.
12 Fruits and fruit juice are also nutritive
Speaking of sugar and food pyramid, it also spread the idea that "fruit" was a vast category of healthy foods that included fruit juices. In fact, treatises, high-calorie fruit juices offer miniscox health benefits compared to raw fruits. The new approach of the pyramid, known as myplate, takes into account these variations. And for the more wrong health news, here is the40 myths of the health you hear every day.
13 Preparation do not nutrition
Let's just look at the errors in the approach of the food pyramid. It also feeds presented as being equally nutritive, but they have been prepared. But while the chicken can offer valuable proteins, there is a big difference between a skinless chicken breast and one of the dozen buffalo wings. The government has since been a key part of the food recommendations, encourage consumers to avoid frying foods. And for more disturbing trivia, consult the20 Fools that will blow your mind.
14 Bread and pasta should be the bulk of your diet
A plus on the food pyramid. It also recommended that carbohydrate-rich dishes, such as bread and pasta should serve as a basis for healthy diet. Not only recommended to eat more bread than protein and vegetables, it did not specify which types of bread consumers should eat-whole grain was as good as Wonder bread in the department of the view of agriculture. We have since wised. And for greater knowledge of health, consult the30 is the worst of women myths of health that will not die.
15 The founding fathers were Christians
When you talk about the United States Foundation, the word "God" is used to appear. A popular belief was that the United States was founded as a Christian nation. Although it is true that the colonies were initially established by those who seek to escape the religious persecution, it was clearthrough recent books And historical criticism that the relationship of the country with Christianity is much more complicated. These historians say that if there was a primordial religious notion at the United States Foundation, it was the skepticism of organized religion and a conviction that the citizens of a country should be able to worship with whom they liked. And for more lies more enlightened in history, check the28 sustainable myths in American history.
16 Thomas Edison invented the bulb
The great inventor Thomas Edison (with 1,093 patents of his name) was also an excellent self-promoter promoter and usually receives a total credit for creating the bulb when it was far from the only person to develop this new technology. In fact, other inventors, including Warren of the street, William Staite and Joseph Swan have developed theirclean versions From the light bulb before Edison, and it is unlikely that he could have hit his revolutionary design without standing on their shoulders.
17 Your tongue had different areas for different tastes
We all saw this language card: sweetness at the front, bitter in the back, acid and salty on the sides. Proves, everything is absurd. Do not scientists do not prove that you will taste salt on the tip of your tongue or sweetness on the sides, but this myth persisted for a good part of the 20the century. And for more on your body, here is20 amazing facts that you have never known on your body.
18 There are people in the right hen and left hen
For years, we were delighted by the idea that there were two types of people - people with left analytics and numbers-oriented, as well as the creative Wordsmiths that make most of their thinking with the right side of their brain. Although brain studies have found that there are corrections of activity in some parts (for example, speech emanates from the left side of the brain for right-handes), on averagePeople use both sides of their brain equally. And for more your body,That's what a cigarette a day does.
19 There are only four types of taste
Sweet, salty, acid and bitter were the four basic qualities we believe that people had. But over the last two decades, scientistscase For the fifth category of taste, the elusive tasty flavor that became called Umami. It has now become such a conventional concept, in restaurants, cookbooks and even fast food dishes, it's hard to believe it was a fairly recent discovery.
20 We only have five senses
Just as we thought we had only four types of taste, we have long asked that there were only five senses. In fact, scientists pointed out that we have at least two more. There areproprioception (sense of pain) andnocagion(sense of space). And some researchers have identified a handful of other particular senses - unfortunately, especially to see dead.
21 Diamonds are made from coal
The idea that coal crushing with enough power can produce a diamond is a convincing idea and makes a beautiful metaphor on how the work can create wonders. But unfortunately, that's not true.
Although diamonds and coal are element carbon forms, and the pressure is essential to create both coal and diamonds, both are not the same. These are two different forms of carbon. Coal comes from decaying plants and other forms of life, which could no longer be transformed into diamonds. Diamonds are found in meteorites of the outside space, whose coal is not. Oh, and speaking of diamonds: here is the20 Best Engagement Rings for Each Budget.
22 Blood flows blue inside you
Once we believe that the blood has flowed blue inside us and when exposed to oxygen, through a cut or wound, then offset on the red color. In fact, while the veins may seem blue on the surface of the skin, which connects more toHow light strikes your eye That the actual color of the blood itself, which goes from brilliant to dark red, but is never blue.
23 We use only 10% of our brain
Although it is true that we do not use all parts of our brain simultaneously at any time, researchers using cerebral imaging technology have found that most parts of the organ are active all day. Roynne Boydexplains inAmerican scientist:
"Take the simple act of pouring coffee in the morning: walking towards the coffee maker, lighting up, pouring the brewing into the cup, even leaving an extra room for cream, the occipital lobes and parietal, the sensory and sensory corsets, Basal Ganglia, cerebellar and frontal lobes are all enabled. A neuronal activity lighting storm occurs almost throughout the brain in a few seconds. "To make sure your brain works at full capacity, here is the7 ways to stimulate your brain after 40 years.
24 You can train your body to become double articulated
Being "double articulated" -When doctors formally call "hypermobility" or "joint laxity" - in fact something you are born, not something you can learn. It is believed that it was something you could train your body to do thanks to the practice. In fact, while athletes and dancers can become more flexible over years of training, they will not really be "hypermobiles". So call your friend of the fifth yard and tell him that he is wrong! And for more incredible lessons, here is the40 ways your body changes after 40.
25 America won as a world war
We like to imagine that the United States is at the origin of Europe as the cavalry and to overcome almost a Hitler and won the Second World War. Although it can make great films, each historian of good reputation will tell you that the war has been won thanks to the contributions of the Russians, English and many other nations, with the United States playing a crucial role, but not the only role. Role . In fact, Russia has no doubt played the more important role that wins the war by holding the eastfront and has lost many more soldiers than any other nation.
26 Tryptophan in Turkey you tires
Every Thanksgiving, we hear about how we feel exhausted after the large meal due to the tryptophan amino acids contained in Turkey. While the hen receives the reputation of napping, this notion wasdilapidated of scientists Which noted that the bird contains more tryptophan than many other meat, cheeses and other foods. If you are tired, it's probably because you have eaten too much.
27 You lose half of your body of heat through your head
We believed that our heads were the areas of our body where we lost most of our body heat. On a cold day, put a hat and miraculously notice the difference. But in fact, scientists have found little evidence that your head releases more heat than average compared to other parts of your body exposed to the same cold. It seems that more heat escapes through your head because this is usually the part that is not covered with clothing.
28 Crickets do not have ears
Researchers recently discovered that crickets have actually heard of the bodies - on their knees. They are three parts that capture all the sound vibrations and send them to the brain crickets, grasshoppers or katydides.
29 Bats are blind
The conventional wisdom is that "blind as a bat" is not an expression - that bats are actually blind and only use its sonar to guide their path and avoid obstacles. In fact, bats can actually see, at least to a limited extent, and there are times when they search for food that creatures do not use their natural sonar, only their view.
30 Urinating on jellyfish neutralizes the Stings
The council has made for decades: if you are stung by a jellyfish, you can neutralize pain when urinating on it. In fact, the researchers exposed this as totally false. Applying urine, ammonia or alcohol, to an injection result in the opposite reaction, irritant active cells and making worse puncture. Instead, they urge those who are bitten by a nasty jelly use household vinegar.
31 Camels hold water in their humps
Whether Looney Toons cartoons or teachers who should know better, we came to the common misconception that camels store water in their humps. In fact, the lump is just a fat mound. That said, these desert roaming creatures are able to go without drinking water for a week or more, but because of their red blood cells and organs that retain water effectively, not because " they carry a canteen.
32 The ostriches bury the head in the sand
Another popular image of the animal kingdom that is not actually real. When these giant birds are frightened, they collapsed and are still on the ground, which is possible as the neck of the land as possible, which can resemble a distance as if it is buried. But having said that, these creatures are not cowards - they have been known to come out hard against predators with their feet when they scratched or eggs are threatened. And for more stories of the animal kingdom, hereAnimals that are tragically close to extinction.
33 Absinthe causes hallucinations
This was even true in the 19e century when drinking "the green fairy" was all the rage in European nightclubs. It was banned in the 20e Century in the United States and many other countries fear cause hallucinations and even death in its drinkers, but it was not based on an actual search as necessary to practice a goat emissary of the temperance movement and Industry French wine.
34 The "hair of the dog" helps overcome a hangover
The idea that "the dog hair that you bite" can help you overcome a hangover - drink a Bloody Mary or Greyhound to pass over the head - may be a compelling idea, especially if you are a big - boozer time. But those who reviewed it recently found little evidence that it works. The only thing that really seems to help a hangover is a healthy amount of water.
35 Ernest Hemingway pushed him until he wrote
This author is well known for his prowess drinking and had for much of the last century drinking like a fish when he wrote his work. But while the man loved being sousfainement, recent research on his life have found that it had not taken practice of trampling as he enters. A biographer notes that when asked whether it was true that he took a pitcher of martinis to work every morning, he replied: "Jeezus Have you ever heard of anyone who has been drinking while! working? You think of Faulkner. "
36 An apple falling on the head of Isaac Newton led to the idea of gravity
It is a simple history of science in action that we learn in primary school: a young Isaac Newton relaxes under a tree when an idea hits him in the form of a falling apple from the tree: gravity! In fact, the manuscripts of the Royal Society of London records that the story is partly true - it simply did not imply the striking fruit on the head. His biographer during his life,William Stukeley wrote:
"After dinner, the weather being hot, we went to the garden and drank tea, in the shadow of some apple trees ... He told me he was right in the same situation, as before, the concept of gravitation entered his mind. It was an opportunity for the fall of an apple, while sitting in contemplative mood. Why bring this apple always descends perpendicular to the ground, he thought to Himself ... "
37 Richard III did not look like his character Shakespeare
Richard III is one of the greatest wicked of William Shakespeare and is physically memorable as having a hunchback "gross stamp" and "distorted, unjustod'd," who can not "get a force leg in front of a nymph of Wilon ambilitation. " But it has been widely supposed that the bard had taken freedoms to describe the man, exaggerating his physical deformations for a dramatic effect. But when the king's bones were discovered in 2012, he was learned that he had a substantial hunchback like Shakespeare described.
38 Lighting never strike the same place twice
Provides that lighting can hit the same places of tens times. Just to givean exampleOn June 30, 2014, during a huge lighting storm in Chicago, the Willis Tower was struck 10 times, Trump Tower took eight hits and John Hancock Center had four strikes. In one year, the Willis Tower is estimated to be touched by lightning up to 100 times.
39 Mount Everest is the highest mountain in the world
Okay, this one involves a certain semantics, but the Everest is the highest mountain in the world, the Mauna Kea volcano from Hawaii is technically the highest measuring 33,476 feet from its base at its summit (Everest is only to just 29,035 feet). However, we do not hear so many things about Mauna Kea, because most of it is underwater, with only 13,796 feet rising above sea level.
40 Football is 100% safe
This is one of the biggest myths exploding in recent years. While football is also American and beloved as apple pie, proof of assembly and heartbreaking stories about the damage it can cause the brain of players made the courtroom that NFL claims that the jury is Always on the dangers that this sport involves.
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