Interesting Science Facts that Nobody Knows
Interesting Science Facts- Part 1
Amazon Rainforest produces 20% of the entire world’s oxygen
The Amazon rainforest is one of the most important ecosystems on Earth. Not only do these lush green forests produce 1/5th of our oxygen, they also help regulate the global climate by capturing carbon dioxide. The Amazon river alone transports 11 billion cubic meters of water each day – enough to fill 1 million Olympic-sized swimming pools!
Each year, 20% of Earth’s oxygen is produced by the Amazon rainforest. This means that it produces more oxygen than all the forests in Canada, Siberia, and the United States combined. The amount of carbon stored in a single Amazon tree is often greater than what is stored in an entire field planted with the same tree species. The Amazon rainforest is so important for regulating Earth’s climate that if deforestation reached 50%, it could cause a spike in global temperatures by 1-2 degrees Celsius.
Some metals are so reactive that they spontaneously react with water and even explode
There are certain metals that are so reactive that they will explode on contact with water. These metals cause an explosion of hydrogen gas and some other chemicals which then react to produce heat, light, and pressure. This is known as the ‘water-gas’ reaction.
The metals mentioned below are those that react explosively when they come into contact with water.
Sodium, caesium, rubidium, potassium, bismuth, mercury, and plutonium
This is a list of some metals which can react with water. With some it will only erupt in flame or simple fizzing, while with others it can be catastrophic.
The sun is so big that it could fit 1 million Earths inside of it.
Most people usually think of the planets when they’re told about sizes, but the sun is way bigger than even Jupiter, which is the largest planet. The sun is so big it could hold about 1,300 Earths.
What’s really big about the sun is that it has 150 times more mass than all the planets combined. The sun makes up 99 percent of the mass of our solar system. It has around 1063 kilograms of material in it, which is a 1 followed by 63 zeros!
The sun has a surface area of 1.4 million km2, which is the same as 3.3 billion football fields! This means that if you were standing on the surface of the earth, you’d see about 0.00000878% (about 878/100000ths) of the surface area of the sun if you looked at it from space!
Black holes are among the most abundant and mysterious objects in the universe
Time and time again, we hear that black holes are among the most powerful forces in the Universe. But what if I were to tell you that no life form could survive if they were to enter a black hole? No matter where a black hole is, it would be impossible for any living thing to survive inside of it. The reason for this has to do with how light behaves in space.
In space, there is an intense competition between gravity and electromagnetism. Since gravity has an infinite range whereas light does not, this means that gravity eventually wins out as long as it doesn’t meet any obstacles along the way.
Black holes are also known for being the most powerful objects in the Universe, because when they do consume things, they can spit them out at speeds faster than light. But what’s interesting about black holes is that no matter what goes in, nothing comes out! Any matter that goes in a black hole is never seen again. As you can see, black holes don’t just consume matter, but they also destroy it!
So if no light can escape a black hole, then how do we know that black holes really exist? The reason for this has to do with fact that when something does enter a black hole, there is so much gravity at play that the matter warps space-time itself. So if a massive amount of matter were to enter a tiny area like the center of a galaxy or even our own Solar System, we would be able to see this warped space-time on the outside of the object.
Water freeze and boil at the same
“Water can boil and freeze at the same time”? Wow, that sounds really confusing! We’ll explain it to you.
It’s a phenomenon called triple point, which occurs when three critical values of thermodynamic temperature, pressure, and amounts of substances are met. For example, as humans we experience the triple point of water at 273.17 K (0.01 ˚C), a pressure of 611.73 hPa, and a concentration of 0.05 molal (which is equal to 0.05 kg of solvent for every 1 kg solution). This means that the three phases – gas, liquid and solid – can co-exist in equilibrium. But this doesn’t happen at normal conditions for water (0˚C), since the maximum pressure that ice can take is about 0.0134 hPa. However, under certain special conditions, water can remain in a liquid form all the way down to -42˚C
Interesting Science Facts- Part 2
Superfluid helium can climb up vertical surfaces and even escape from containers whose top is not sealed
Helium is a noble gas that is very unreactive. However, it can form compounds with the elements such as fluorine, oxygen, or nitrogen. The behavior of helium-4 is governed by a simple set of rules: it cannot be compressed indefinitely and its boiling point (4 K) is the lowest among all other gases.
In 1937, while passing through the liquid helium at 4K (and 5×10Pa), Otto Stern showed that in some circumstances helium atoms could become superfluid and climb up the side of their container – refusing to follow gravity’s law! This discovery was later described by Nobel Prize winner Harry Ketterle as “one of the most spectacular discoveries in physics since quantum mechanics.”
The first evidence of the effect was obtained in 1952 when Simon Klemperer, while investigating helium-3, observed that helium-3 becomes superfluid at temperatures above 1.8K. He then demonstrated the effect in helium-4 that same year.
In 1957, a Russian team including Yuri Latyshev showed that this odd behavior is caused by a quantum phenomenon known as Bose condensation. Theoretical work by Kenneth Wilson in 1963 related this property to the topology of the phase diagram of this system and also predicted how it should appear if there are two spin states for each atom (AHE).
Neutron stars are so dense that just a teaspoon of matter from one would weigh 6 billion tons.
What is a Neutron Star?
A neutron star is the collapsed remnant of an exploded star. When stars near the end of their lives, they can eventually explode in what’s called a supernova. This leaves behind a dense ball of neutrons that’s only about 12 miles but has the mass of 4.5 suns—which means it has higher gravity than any planet we know about, and even some white dwarfs. It does not have enough gravity to create nuclear fusion, so it doesn’t shine brightly like other stars; instead, it shines by emitting radio waves and light from its magnetic field.
A beam of laser light can get trapped in water
Lasers can get trapped in water, especially if the beam encounters something like a glass of water. This is because the molecule that make up water molecules reflect light when it strikes them. The process is called reflection and can be seen anytime a person sees their own face in a mirror or anything that reflects light. The laser entering the glass is reflected back out and since there’s nothing else to bounce off of, it will just bounce around inside until eventually beaming out through the top of the glass.
The Great Barrier Reef is the largest living structure on Earth
The Great Barrier Reef is the largest coral reef system in the world, stretching for over 2,600 kilometers (1,700 mi), and covering an area of approximately 344,400 square kilometers (133,000 sq mi). Sometimes called the “Eighth Wonder of the World”, it’s a magnificent place with many secrets yet to be discovered. This article will go through some of the fascinating things you can do when visiting this area.
People are often surprised to learn that there are two main sections of the reef: The Ribbon Reefs and The Outer Reef. It can take up to an hour by boat from one side to another. The Ribbon Reefs are located near the coast (42–60 km), where the water is shallow and contains many reefs. The Outer Reef is further out to sea, and fewer tourists visit it.
You can prove Pythagoras’ theorem with fluid
Pythagoras famously said that in a right-angled triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. Most people are familiar with this. This article will provide an experiment for proving that statement.
How to run the experiment that proves Pythagoras’ theorem?
The setup for this experiment is not complicated or expensive. All you need are some boards, nails, string, and a bucket or container full of water and food coloring. A tube can also be used to help cause a siphon effect if desired. First, a square is drawn on the floor and a small hole in the middle.
Four boards are nailed into place, forming a square with the dots representing nails.
Three strings are then tied to the nails with one string going to each corner of the big square and exiting through holes in two of the sides of the board frame. The other end is left loose in order to be used as a handle. The strings will be colored later to track their flow through this experiment. A siphon tube may be used for more accuracy if desired. The string attached to the lower right corner should have one end hanging loose, and this will be used to lower it into the bucket or container of water.
The string attached to the upper left corner should be lowered into the fluid container until it is a few inches below the surface. The food coloring will then be added to the water and observed. The food coloring will flow through the string and out of the loose end, showing that fluid does indeed flow from a higher level to a lower level.
After several minutes of allowing time for all of the food coloring to move through, more food coloring will be added. This will cause it to flow back up again, filling in the area between where it is being added and where it was before all of the color left. This happens because when the food coloring is being added, it wants to flow in the opposite direction of what is already in the tube. This is called a siphon.
The second part of this experiment will be performed using water instead of food coloring. The first set of strings should still be hanging loose except for the lower left string. The string attached to the upper right corner should now be placed into the original container of water and lowered without adding any new food coloring. When this new string has been lowered into the fluid, it will begin to fill with fluid because there are two heights separated by a tube, and fluid always flows from high to low levels. This can also be referred to as a siphon.
When the string has filled with fluid, it should now be pulled out of the water, causing the fluid on end to begin to fill again. When this happens, the stream of fluid coming out of the tube will turn into a siphon because there are two levels separated by a single tube.
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