Throughout history, people have wondered if there is another world under the earth. It existed even though ancient Greeks believed it, although their beliefs were more mythological that literal. Modern science now says that our planet is composed of a series of layers consisting of dense hot cores and liquid magma. The 17th century's most popular theory was that the earth is hollow and there exists another world beneath it.
Plate tectonics
Earth is in a constant state of plate-tectonics. It is responsible to the formation of mountains, rivers, and even incandescent eruptions. The planetwide conveyor belt that links plates tectonics to the surface will eventually stop rotating at some point in time. This will end the ongoing process of reshaping the Earth.
Habitable zones
The Earth is an example of a planet with a habitable zone under its surface. The inner and outer limits of the zone are determined by the solar irradiance and the planetary luminosity. The upper limit is at a value of 0.53 times the solar constant. This equals 1.37 astronomical units.
FAQ
Five interesting facts about your liver.
The liver is responsible of breaking down toxins and storing nutrients. It also regulates blood pressure, and maintains our body's temperature.
Is it not often that we hear people say "I feel sluggish today" and "my head feels heavier?" These symptoms may be a sign of liver disease.
Common signs include yellowing skin, dark urine, fatigue, nausea and vomiting, weight loss, stomach cramps (yellow coloration), itching, and jaundice (yellow colouration). These are not all the warning signs. If you feel any of these warning signs, consult your doctor immediately.
The liver, an essential organ, is vital. It is essential for detoxification and metabolism as well as reproduction.
-
An adult liver weighs around 1,400 grams.
-
The liver of a baby is roughly half the size that of an adult at birth. It grows to be about four times bigger by age three than an infant's.
-
The liver can be found on the left side of your abdomen, just below the lower rib cage.
-
There are 16 major liver lobes. However there are many smaller, more intimate lobules.
-
Red blood cells make up approximately 10 million of the liver's total.
What dark secrets do Hollywood have?
Hollywood is full 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.
There are other nefarious entities that have a significant influence on the industry. These include the MPAA (Motion Picture Association of America), the organization that sets film ratings and RIAA(Recording Industry Association of America), the company that sets music licensing fees.
Numerous unions or guilds also represent producers, writers, actors, etc. Many of the major TV networks and movie studios are owned or controlled by large corporations.
It doesn't matter how secretive a group might seem, someone somewhere knows what they are doing. But that doesn't mean we should fear them.
Instead, embrace them. Because they provide us with information that helps us make better decisions.
They tell us what movies will likely succeed, what songs will be popular, and what books will best sell.
They help us make decisions about what we will buy, watch, listen to, or read.
We can trust our advisors and ignore advice that isn't in accord with our tastes.
They are more powerful than ever because we chose to ignore them. They become the ultimate arbiters for taste.
You can ignore them if they don't agree with you.
Let's take a closer look at some of the less-known, yet still very real Hollywood secret clubs.
You'll see why they are so important.
How does the brain regulate the functions of the body?
To ensure that other organs and muscle functions work together, the brain sends messages. Everything that happens within your body is controlled by the brain. It tells the stomach to digest food, and the lungs to breath air. It also tells your legs and arms to move.
Your brain is made of billions, or neurons, of nerve cells. Action potentials, which are electrical signals sent by neurons to each other via axons, allow them to communicate with one another. Each neuron has its own cell membrane around its nucleus. The cell membrane houses channels that allow ions, such as potassium and sodium, to enter and exit the cells. The neuron fires when there is ion movement.
Neurotransmitters are chemicals released when a neuron fires. Neurotransmitters attach to the receptors of the second neuron and open ions channels for ions to pass in and out. In turn, the second neuron also fires.
Neurotransmitter release occurs when the presynaptic neuron receives an impulse from another neuron. An impulse travels along a synapse that connects the two neurons. The transmitter binds with the receptors of the postsynaptic nerve, activating the firing of the postsynaptic neurons.
Neurotransmitters are important for communication within the nervous system. They also help coordinate activity between different parts of the brain.
What is the most mysterious place on earth?
Antarctica is considered the most mysterious area on Earth.
Why do we find this place so intriguing? It is unlike any other place on Earth.
It is remote and difficult to reach. This site has more to it than meets your eye.
You will also find some of the oddest wildlife species in this natural wonder.
Let's see how this incredible destination became famous for its mystery.
Antarctica: The South Pole
Antarctica's name is a mystery. Some say it means "land on ice." Others think it comes from Greek mythology.
Antarktis was an ancient Greek name that was given to the island where Zeus and his twin brothers, Zeus. According to some legends, one of these twins was born in winter. The term antarctic is derived from this.
Others believe that the name is a combination of the Greek words anti and tropos which mean against and turn. This would be land turned away form the sun.
Whatever the reason, Antarctica has always held a special fascination for people.
It is the coldest, windiest, driest and highest continent. It is too cold to support trees, plants, and animals.
Yet, the frozen desert is alive with life.
Here are about 90% of all the living creatures on Earth. You can find approximately half the world's species of animal and plant plants here.
And what makes Antarctica such a unique environment? Here, water freezes and becomes ice instead of evaporated into the air.
This causes large amounts of ice to float above ground.
These floating glaciers cover over 80%. They're getting bigger every year.
So far, the Antarctic ice sheet has grown 60 feet since 1960.
If the melting continues, the sea level will rise by up to 200 feet. That could cause massive flooding around the globe.
But not everyone thinks this is bad news. Some scientists think global warming might be beneficial. They suggest that rising temperatures could cause ice sheet melt faster, leading to floods that flush out toxic chemicals from soil and bodies.
Others, however, warn that this theory sounds almost like a plot for a science fiction film.
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)
- Your mouth makes a lot of saliva every day It might seem like way too much, but your salivary glands typically produce anywhere from 0.5 and 1.5 liters a day, according to a 2009 study published in the Journal of Medicine and Life. (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)
- You spend about 10% of your time awake blinking (romper.com)
- 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)
External Links
How To
What is the scariest movie?
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 prefer comedies.
No matter what you like, we all have seen some truly scary movies.
These are ten great scary movies, ranging from the classic Halloween to the modern Paranormal Activity.
-
"Cabin Fever" - "Cabin Fever" is considered one of the scariest zombie movies made. It shows a virus that makes people turn into zombies.
-
"Thir13en Ghosts" - Based upon the true story of serial killer Jack the Ripper, "Thirteen Ghosts" features a group of teenagers possessed by ghosts.
-
"Pulse" - This thriller tells the story of a man trapped in his apartment during a violent crime spree. He must use only the items from his house to fight off his attackers.
-
"The Descent", one of the earliest found footage horror films, "The Descent", follows a group exploring underground for an adventure. They soon find out that things are not going as planned.
-
"Get Out" was created by Jordan Peele in 2017, and is one of the scariest horror films ever made. "Get Out" depicts a young black photographer visiting his white girlfriend's family for the holidays. Dark secrets are revealed when he arrives at his destination.
-
"Paranormal Activity" (2007) - "Paranormal Activity" was one of the very first found footage movies. The movie featured a new spin of ghost stories, starring Katie Featherston.
-
"Audition” in Japan means to give a speech before an audience. 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 the result of his decision to stop making low-budget horrors.
-
"Tales From the Crypt", a horror film that focuses on the stories of the Crypt, becomes more terrifying with each year. Hollywood has produced many sequels to the horror-stricken crypt keeper over the years.
-
"Carrie," 1976. "Carrie", 1976. Telekinesis was introduced to viewers by Carrie. Carrie White can just think about objects and move them.