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What is the fourth state of matter plasma?
We all know about these three different states of matter solid, liquid, and gas. But beyond these three states, there can be a fourth state of matter called plasma. We know that the number of positively charged protons in the nucleus of a molecule or atom has the same number of negatively charged elRead more
We all know about these three different states of matter solid, liquid, and gas. But beyond these three states, there can be a fourth state of matter called plasma. We know that the number of positively charged protons in the nucleus of a molecule or atom has the same number of negatively charged electrons outside. That is why the collective charge of a molecule or atom is neutral or zero. But we can make any atom negatively or positively charged with electrons or extra electrons. We call them ions. Plasma is an ionized gas in which the number of free electrons and positive ions is approximately equal.
Gases can be transformed into plasma by intense heat. Even applying a strong electric field can create plasma. Plasma is produced inside tube lights at home. The bright advertisements seen in neon lights also contain plasma. The electric light seen during lightning is also called plasma, and the matter between distant stars is also plasma. We currently use nuclear energy by splitting heavy nuclei through fission. Fusion attempts to use plasma to create energy by combining light nuclei and is now an important area of physics research.
See lessWhy is the body hot even if it is fever?
That's our natural defence mechanism to fight the bacteria or virus. But that doesn't mean persistent or low-grade fever with interval is good for human.
That’s our natural defence mechanism to fight the bacteria or virus. But that doesn’t mean persistent or low-grade fever with interval is good for human.
See lessHow is it possible for a whale to breastfeed its young in the middle of the ocean?
The answer lies in the composition of milk. When these young whales are ready to feed, the mother whale releases her milk directly into the water while her baby is near her. But because whale milk contains so much fatty content, it does not dissolve in water and does not mix with water. Instead, thiRead more
The answer lies in the composition of milk. When these young whales are ready to feed, the mother whale releases her milk directly into the water while her baby is near her. But because whale milk contains so much fatty content, it does not dissolve in water and does not mix with water.
Instead, this thick and sticky form of milk floats separately in the water so that the baby whale can eat it.
See lessCan the laptop/battery be damaged by using the laptop while charging? What is the best way to charge a laptop, is there any standard rule?
The idea of a laptop is that it is your PC, but when you are on the move and need to do urgent work, your battery will help you do that work. That means it's best to charge whenever you can.
The idea of a laptop is that it is your PC, but when you are on the move and need to do urgent work, your battery will help you do that work. That means it’s best to charge whenever you can.
See lessWhat is luminiferous ether?
A fictional medium. As sound travels through the medium of air, it is assumed that light travels from one place to another through the medium of the luminiferous ether. Michelson and Morley later proved through experiments that this medium does not actually exist.
A fictional medium. As sound travels through the medium of air, it is assumed that light travels from one place to another through the medium of the luminiferous ether.
See lessMichelson and Morley later proved through experiments that this medium does not actually exist.
Is it possible to drive a car on the moon?
Yes, definitely possible. Because the moon also has its own gravity.
Yes, definitely possible. Because the moon also has its own gravity.
See lessHow are human made?
Man is made from the basic elements of nature. Because of this, human behavior is similar to the behavior of inanimate objects in nature.
Man is made from the basic elements of nature. Because of this, human behavior is similar to the behavior of inanimate objects in nature.
See lessCompanies like Google, Facebook, Microsoft and Amazon pay very high salaries to their employee. How is the job security in these companies?
Top-level tech companies are firing their employees. Recently they fired several huge numbers of experienced employees. Facebook fired – 11,000 Google fired - 12,000 Microsoft fired – 10,000 Amazon fired – 18,000 That means there are no security of these jobs
Top-level tech companies are firing their employees. Recently they fired several huge numbers of experienced employees.
See lessFacebook fired – 11,000
Google fired – 12,000
Microsoft fired – 10,000
Amazon fired – 18,000
That means there are no security of these jobs
What is friction?
If two objects are in contact and try to slide against each other, the force that arises between them is called friction.
If two objects are in contact and try to slide against each other, the force that arises between them is called friction.
See lessHow many types of friction and what are these?
There are four types of friction • Status friction. • speed friction • rotational friction. • Flow friction.
There are four types of friction
See less• Status friction.
• speed friction
• rotational friction.
• Flow friction.
What is static friction?
The frictional force between one object when it is stationary relative to another object is called static friction. For example, when we are standing on the ground, we have a static frictional force with the ground.
The frictional force between one object when it is stationary relative to another object is called static friction.
For example, when we are standing on the ground, we have a static frictional force with the ground.
See lessWhat is dynamic friction?
The friction between one object and another object in motion is called kinetic friction. For example, when we write in a notebook with a pen, our pen moves with respect to the notebook. The friction of the notebook with the pen works while writing.
The friction between one object and another object in motion is called kinetic friction.
For example, when we write in a notebook with a pen, our pen moves with respect to the notebook. The friction of the notebook with the pen works while writing.
See lessWhat is rotational friction?
When an object rolls or rotates on a surface, that movement is called rotation. The friction of the object with the ground during this rotation is called rotational friction. For example, when the car moves on the road, the rotational friction of the road works with the wheels of the car.
When an object rolls or rotates on a surface, that movement is called rotation. The friction of the object with the ground during this rotation is called rotational friction.
For example, when the car moves on the road, the rotational friction of the road works with the wheels of the car.
See lessWhat is flow friction?
As a liquid or gaseous substances can flow, they are called flowing substances. When an object passes through a flowing i.e. liquid or gaseous substance, the frictional force applied by the object with the liquid or gaseous substance is called fluid friction. As we are immersed in the ocean of air oRead more
As a liquid or gaseous substances can flow, they are called flowing substances. When an object passes through a flowing i.e. liquid or gaseous substance, the frictional force applied by the object with the liquid or gaseous substance is called fluid friction. As we are immersed in the ocean of air on Earth, our flow friction with the air is active.
See lessWhat is the largest unit of distance ever?
Parsec or Parallactic second is the largest unit of distance. 1 parsec = 3.26 Light year
Parsec or Parallactic second is the largest unit of distance.
See less1 parsec = 3.26 Light year
How to draw the orthocenter of a triangle?
From the vertices of the triangle draw perpendiculars to their respective opposite sides. Three perpendiculars will intersect at a certain point. The point of intersection is called the orthocenter of the triangle.
From the vertices of the triangle draw perpendiculars to their respective opposite sides. Three perpendiculars will intersect at a certain point. The point of intersection is called the orthocenter of the triangle.
See lessWhat is the orthocenter of triangle?
The point of intersection of the perpendiculars drawn from the vertices of a triangle to their respective opposite sides is called the orthocenter of that triangle.
The point of intersection of the perpendiculars drawn from the vertices of a triangle to their respective opposite sides is called the orthocenter of that triangle.
See lessHow to draw the centroid of a triangle?
The line joining the trigonometric points of a triangle to the midpoints of their respective opposite sides is called the median of the triangle. For the three angular points and sides, we get three medians. These medians will intersect at a point. That point will be the centroid of the triangle.
The line joining the trigonometric points of a triangle to the midpoints of their respective opposite sides is called the median of the triangle. For the three angular points and sides, we get three medians. These medians will intersect at a point. That point will be the centroid of the triangle.
See lessWhat is the centroid of triangle?
The point where the medians of the triangle intersect is the centroid of the triangle.
The point where the medians of the triangle intersect is the centroid of the triangle.
See lessHow to draw circumcircle or circumcenter of a triangle?
If the perpendicular bisectors of the three sides of the triangle are drawn, they will intersect at a point. Any one of the angular points of the triangle must be joined to the point which intersects. Now, if you draw a circle with a radius equal to the length of this connecting arm, you will get thRead more
If the perpendicular bisectors of the three sides of the triangle are drawn, they will intersect at a point. Any one of the angular points of the triangle must be joined to the point which intersects. Now, if you draw a circle with a radius equal to the length of this connecting arm, you will get the circumcircle. Whose center is the circumcenter?
See less