No matter if you're a scientist (or a curious layperson), you can learn many fascinating facts regarding the human body. There are thousands upon thousands of biological systems that make up the human body. Each system is designed for a specific task. The human body is a wonderland. There are many things you can learn about the skeletal and circulatory systems, as well as the digestive system.
The human body is made up of about 7,000,000,000,000,000,000,000,000,000 (7-octillion) atoms. These atoms were created during the Big Bang 13 million years ago. The human body's microbial biome is believed to be 39 trillion cells.
Teeth are part of the skeletal system. An adult's set of teeth has approximately 32 teeth. Teeth are not considered as bones, but they make up part of the skeletal systems. The hardest substance in the human body is enamel.
Adult human hearts beat approximately 36,500,000x per year. The average adult blood supply is around five liters. An adult bladder can hold between 16 and 24 ounces of urine. Most people draw their lungs in the same way. The surface area for adult human lungs measures 70 square metres.
More than 600 skeletal muscle cells make up the human body. Each muscle functions in pairs. There are also muscles that pull differently. The human body can produce 20 tonnes of force. The heart is our only non-fatal muscle. The human eye is composed of two million parts that can distinguish between 10 million colors.
25 million human cells are made every second. It can boil half a gallon water in 30 minutes. It also generates heat to aid in the digestion of food. This heat is used for maintaining homeostasis. The heart can pump enough blood to reach 30 feet.
There are 100,000 miles of blood vessels in the human body. The circulatory systems consists of the heart as well as the arteries, veins, capillaries and blood vessels. It moves oxygen, carbon dioxide, and nutrients throughout the body. It also eliminates waste from your body. Two quarts of waste are removed from the body by the kidneys.
The human nose can identify 50,000 different smells. It can also produce enough electricity to light up a lightbulb. The human eye is capable of detecting ultraviolet light.
The brain, the largest organ in the body of a human being, is the human brain. It houses 100 billion nerve cells. The adult brain needs more oxygen than other parts of your body. The brain can survive for up to 10 minutes without oxygen. The adult human brain weighs three pounds. It takes 20% less oxygen than the rest. It also contains more nerve cells than Encyclopedia Britannica. The brain generates more electrical impulses per day than all of the telephones in the world combined.
There are over 500 functions in the human body. These functions include digestion, filtering out waste and breathing. The liver is often referred to as the "chemical factory of the body".
FAQ
How does your brain control the functions within your body?
The brain communicates with other organs to ensure their cooperation. Your body's functions are controlled by your brain. It tells both your stomach and lungs what to do; it also controls your legs and arms.
Your brain is made up billions of nerve cell networks connected in groups known as neurons. Action potentials are electrical signals that neurons send to one another. Each neuron has a cell membrane surrounding its nucleus. There are channels within the membrane that allow ions such a sodium or potassium to enter and exit the cell. Ion movement creates the electric charge that causes the neuron to fire.
Neurotransmitters are chemicals released when a neuron fires. Neurotransmitters bind to receptors on the second neuron, opening ion channels so ions can pass in and out of the channel. As a result, the second neuron fires too.
When another neuron sends an impulse to the presynaptic neural cell, neurotransmitter is released. The impulse travels along the synapse connecting the two neurons. The transmitter binds directly to the receptors in the postsynaptic nervous neuron, and triggers the firing.
The nervous system relies on neurotransmitters for communication. They coordinate activity between the different parts of your brain.
Is there a Hollywood blacklist of actors?
There is a Hollywood blacklist.
But the list isn't made public. The names are not known to us. But, here's why it matters.
The secretive nature of the information is due to the fact that actors and directors on blacklist won't be in a position to find work. So they'd go out of business, which means that the studios would lose money. Which means they'd cut back on spending money on movies. Which would mean fewer opportunities for the blacklisted filmmakers. This would make them bankrupt.
This could mean more victims.
In short, when someone tries to make an oscar winning movie, they might be asked to sign a contract saying they won't speak publicly against their employers. This applies to any producer or director who wishes to be nominated.
It's no surprise that directors are often forced to take out scenes in their films by producers. Directors threaten to abandon projects that don’t conform to their vision.
This is why Hollywood has a blacklist. If you make negative comments about your employer, it's likely that you will be unemployed. It's not good for anyone.
Problem is, many people have been falsely charged. And they've had to fight to clear their name.
This must be stopped before it happens again. It is essential that everyone has the freedom to express their opinions.
We must get rid of the Hollywood blacklist.
What is the most secretive town in the world?
It may surprise you to hear the answer. It could even make you uncomfortable, because it challenges how reality is perceived and lived. There is a reason this place exists and it's not as you might expect.
The City of God was its name by the ancient Greeks. It was called the City of Destruction by the Bible.
It is also called Kashi in India (Kashmir). It is also called Novgorod in Russia.
Here in America, however, it is called The Village That Disappeared.
One small New York State town with just 1,200 people 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 say it was swallowed up by the Earth. Others say it was destroyed in a meteorite collision. Some claim that it was destroyed by a meteorite strike. Others still believe it was stolen away by aliens.
Despite what may have happened, the people who lived in this once-thriving area are confident that their town will not be lost forever. They had just moved to a new town.
There's even a website that tracks the disappearances and recoveries of Zugspitz.
So where is this town? It's in Switzerland.
You can find Zugspitze at the border of Austria and Germany. A huge lake, Lake Zugspitze, is located just beyond the summit.
It's always fascinated me how so many towns disappear, yet others remain. Why is it that some disappear while others live on? I decided that I would investigate.
I was curious about the disappearing towns. What causes a community to disappear? How can one place vanish from existence?
It turned out that there are many theories about disappearing towns. One theory states that a town vanishes when all its buildings are destroyed. Another theory is that the town moves to another place. The third theory is that the town was never actually there.
There are many theories, but the truth is that thousands of towns around the world have been submerged by the earth. This video examines both the history and current status.
What dark secrets can Hollywood keep from you?
Hollywood is filled secret societies. Some are cult-like groups where members follow strict rules and rituals, while others are simply clubs for those who share common interests.
Some of the most powerful organizations in the industry are even more dangerous. There are companies like the MPAA (Motion Picture Association of America), who sets film ratings and the RIAA, which sets music licensing fees.
Numerous unions and guilds also represent actors, directors, writers, producers, etc. Many of the major TV networks and movie studios are owned or controlled by large corporations.
It doesn't really matter how secretive an organization may appear, there is always someone who knows exactly what they do. But that doesn't mean we should fear them.
Instead, we should embrace them. Because they give us information that allows us to make better decisions.
They can tell us which movies and songs are likely to be successful, as well as what books and novels will be most popular.
In short, they help us decide what we'll buy, watch, read, and listen to.
We can trust their advice and we can ignore it if it contradicts our values.
And because we've chosen to ignore them, they become even more powerful. They become the ultimate arbiters for taste.
You are free to ignore their messages if that bothers you.
Let's now look at some lesser-known, but still very real Hollywood secret organizations.
You can see why they are so vital.
Statistics
- "It is estimated that 75% of people have at least mild gum disease, with the most common symptoms being bleeding when brushing, bad breath, and dark and swollen gums," Dr. Ron Baise, a London-based dentist, tells Romper. (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)
- 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)
- 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)
- In fact, nearly 24% of U.S. women are affected with one or more pelvic floor disorders, according to research funded by the National Institutes of Health. (romper.com)
External Links
How To
What's the scariest film you have ever seen?
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. Some people prefer comedies.
No matter your taste, there are some scary movies that everyone has seen.
These are ten top-rated scary movies from the past, such as "Halloween" or "Paranormal Activity".
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"Cabin Fieve" - "Cabin Faeve" is considered one the scariest movies about zombies. It depicts a virus that causes humans to turn into zombies after death.
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"Thir13en Ghosts” - Based on the true tale of Jack the Ripper the "Thirteen Ghosts", features a group teenaged victims of ghost possession.
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"Pulse", an action thriller, is about a man that was robbed and left in his home during a violent crime spree. Only the items in his home can help him fight off his attackers.
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"The Descent," one of the first found-footage horror movies, is about a group of strangers who go underground to find adventure. But things quickly go horribly sour once they arrive.
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"Get Out" was created by Jordan Peele in 2017, and is one of the scariest horror films ever made. "Get Out" portrays a young black photographer who visits his white girlfriend for the holidays. Dark secrets are revealed when he arrives at his destination.
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"Paranormal Activity" (2007) - "Paranormal Activity" was one of the very first found footage movies. It featured a new twist on ghost stories, starring Katie Featherston.
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"Audition" - In Japan, "audition" means to stand before an audience and be judged. This is exactly what happens when Kiyoko, a high school student, waits to find out if she will be a pop star.
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James Wan, creator of the "Saw," Series, was tired of creating low budget horror films that failed to impress audiences. Jigsaw was created by Wan, who decided to take a break.
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"Tales From the Crypt", "Tales From the Crypt", "Tales From the Crypt," - "Tales From the Crypt", becomes more frightening with each passing year. Over the decades, Hollywood has released many sequels featuring the crypt keeper terrorizing various cities in the US.
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"Carrie," 1976. "Carrie," introduced viewers to telekinesis. This powerful supernatural ability is known as "Carrie". Carrie White can manipulate objects simply by thinking about them.