Ebbinghaus illusion
The Ebbinghaus illusion, an optical illusion, occurs when a stimulus appears bigger than its surroundings. Its appearance depends on its size perception and retinal size. The size perception is confirmed by the flash-lag effect, which causes the objects to appear similar at a later time. Participants were shown four identical surrounding disks in two sets at different times. There was a significant flash-lag effect when the central disks were larger on one side than the other.
FAQ
Which is the most secretive city in the world?
The answer to that question may shock you. You might be uncomfortable with the truth of it, as it may challenge your perception of reality. But there is a reason why this place exists. And it is not what you would expect.
The City of God was its name by the ancient Greeks. It was also called the City of Destruction in the Bible.
It's known in India as Kashi (Kashmir). It is also called Novgorod in Russia.
It is known as The Town That Disappeared in America.
A small community of 1200 people in western New York State vanished. With the exception of a road marker pointing to its former site, there were no remains: cars, bodies, houses.
This little town disappeared, leaving no clues about where it went or when. Some claim the earth swallowed it. Others claim that a meteorite hit destroyed it. Others claim it was taken away by aliens.
Whatever happened, the residents of this once-thriving community are convinced that their town isn't gone forever. They had just moved from one town to the other.
Even a website exists to help track down the disappearances of the lost city Zugspitz.
You might be wondering where this town went. Well, it's in Switzerland!
Zugspitze is located on the border between Germany and Austria. Lake Zugspitze can be found just beyond the summit.
I have always been fascinated by the fact that so many towns have vanished, but some remain. Why is it that some disappear while others live on? I decided to investigate.
I was interested in learning more about these mysterious towns that are disappearing. What is the secret to a town's disappearance? How can a town disappear from existence?
There are many theories to explain the phenomenon of disappearing towns. One theory says that a town disappears when all the buildings are demolished. Another theory states that the town simply moves to another location. A third theory claims that the town never existed at all.
Theories aside, the fact remains that dozens of towns around the globe have been swallowed up by the ground. This video explores the history of these towns and examines their current state.
What is the most intriguing fact about the human anatomy?
We have two eyes and two ears, two nostrils each, four limbs, four limbs and a penis. Yes, more than 50 parts to our bodies. But one thing is missing. A heart.
The heart is a pump which circulates blood throughout the body. The blood flows through the veins and arteries to carry oxygen and nutrients to the cells.
The heart pumps out approximately 5 liters of blood per minute. This amount is equivalent to an adult drinking 2-3 cups of coffee daily.
The blood flows throughout the heart 24/7, 365 days a calendar. Your heart beats nearly 100 times a minute while sleeping.
Skin color can be used to determine if someone has a medical condition. Looking closely at the skin's surface, you can see tiny blood vessels called capillaries. These small vessels carry blood from the large blood vessel in the skin back towards the heart. When blood flow is blocked, the skin turns blue or purple.
People with sickle cells lack red blood cell. Their blood becomes extremely sticky and hardened, which can lead to very serious illnesses.
A bandage can be used to stop bleeding if you have cut your own skin. Blood must continue to flow to allow the wounds to heal properly. Doctors insert a needle into the injured area through the skin. This allows blood to drain from the area.
The doctor may also insert catheters (catheters), into the artery at the site of the blood clot. This keeps the patient alive till the blood clot dissolves naturally.
These 5 facts are amazing about the liver
The liver is responsible to detoxify toxins and store vitamins and minerals. It helps to regulate blood pressure and keep our bodies temperature stable.
What number of times have you heard someone say that they feel sluggish or heavy? These symptoms could be signs of liver problems.
Other symptoms include itching, yellowing of the skin, heavy urine, yellowing of the skin, fatigue and nausea. These are not the only warning signs. If you experience any of them, make an appointment with your doctor immediately.
The liver is a vital organ. It is an important organ that plays a vital role in detoxification.
-
The average adult liver weighs 1,400g.
-
The liver of a baby is roughly half the size that of an adult at birth. It becomes about four times more large by the age of three than an infant's liver.
-
The liver is located on the left side, just below your rib cage.
-
There are 16 major liver lobes. However there are many smaller, more intimate lobules.
-
The liver contains about 10 million individual red blood cells.
What is the most mysterious place on earth?
Antarctica is the world's most mysterious place on Earth.
Why is this place so amazing? Because it is unlike anything else on Earth.
It is remote and difficult to reach. But there is more to this site than meets the eye.
These wild animals are also found in this natural wonder.
Let's see how this incredible destination became famous for its mystery.
Antarctica: The South Pole
Antarctica is not known by anyone. Some believe it means "land of ice." Others believe it derives from Greek mythology.
Antarktis is the name Antarktis was given to an island in ancient Greece by Zeus' twin brothers. According to some legends, one of these twins was born in winter. This is why the word "antarctic" was chosen.
Others believe that it is the Greek word anti, which means against, and tropos, which refers to turning. This would translate to land that is turned away from the sun.
Whatever the reason, Antarctica has always held a special fascination for people.
It is the driest, windiest of all continents. Because it is too frigid, there are no trees, animals, or plants.
Yet, this frozen wasteland is alive.
It houses approximately 90% of all Earth's living organisms. There are about 50% of the world's animal, plant and plant species.
What makes Antarctica so special? Here water freezes to ice and not evaporates into the atmosphere.
This causes large amounts of ice to float above ground.
These floating glaciers make up 80%. And they're growing larger every year.
The Antarctic Ice Sheet has grown 60 feet in the past 60 years.
The sea level could rise to 200 feet if the melting continues. It could result in massive flooding all over the world.
This is not necessarily bad news. Some scientists claim that global warming could be good for us. They say that as temperatures rise, the ice sheets might melt faster, causing floods that flush out tons of toxic chemicals from our soil and bodies.
Others cautioned that this theory sounds too science fiction.
Statistics
- A 2012 paper published in the Proceedings of the National Academy of Sciences reported that people blink about 15 to 20 times each minute, meaning, if you do the math, you spend about 10% of the time that you're awake blinking. (romper.com)
- The average human adult male heart rate is between 70 and 72 beats per minute, while the average for adult women is between 78 and 82 beats, which is significantly faster, according to 2014 published in the Journal of Clinical and Diagnostic Research. (romper.com)
- According to a 2018 study published in Free Radical Biology & Medicine, this is because blood pressure is regulated by our innate circadian rhythm and internal clock. (romper.com)
- It might not sound like something that's truly plausible — and it is quite rare — but according to a 2015 study published in the Asian Cardiovascular & Thoracic Annals, it's possible to hurt yourself and even break a rib just by sneezing. (romper.com)
- In fact, according to the American Academy of Ophthalmology, you make 15 to 30 gallons of tears each year, which is insane when you think about it. (romper.com)
External Links
How To
What's the scariest movie ever made?
You're likely to get 10 different answers if you ask people about the most frightening movies.
Some people love horror films. Some others enjoy sci-fi flicks. And then some prefer comedies.
No matter your preferences, everyone has seen some truly frightening movies.
These are ten of most terrifying scary movies ever made, including the classic Halloween and the modern Paranormal Activity.
-
"Cabin Fever" - "Cabin Fever" is considered one of the scariest zombie movies made. It depicts a virus causing humans to become zombies.
-
"Thir13en Ghosts", a story about a group of teenage ghost-possessed teenagers, is based on the true story Jack the Ripper.
-
"Pulse", a thriller, tells the story about a man held captive in his apartment by a violent crime spree. Only his personal belongings are allowed to help him defeat the attackers.
-
"The Descent", one of the earliest found footage horror films, "The Descent", follows a group exploring underground for an adventure. Things quickly go horribly wrong once they reach their destination.
-
"Get Out" - Jordan Peele is known for making one of the most frightening horror films ever made in 2017. "Get Out" is about a young black man who visits his white girlfriend to celebrate the holidays. Untold dark secrets reveal themselves when he arrives.
-
"Paranormal Activity", 2007 - "Paranormal Activity," was one of the first found footage movies. The movie featured a new spin on ghost stories, starring Katie Featherston.
-
"Audition" in Japan - To stand before an audience and to be judged. Kiyoko, high school student, waits in anticipation to find out if her dream of becoming a pop singer will come true.
-
James Wan's "Saw Series" - After many years of low-budget horror films, he grew tired of trying to shock the public. Jigsaw was his idea.
-
"Tales From the Crypt". "Tales From the Crypt," is becoming more and more disturbing with each passing year. Hollywood has made numerous sequels featuring the crypt keeper terrorizing various US cities over the years.
-
"Carrie," 1976. "Carrie", 1976. Telekinesis was introduced to viewers by Carrie. Carrie White can just think about objects and move them.