1. What if the sun suddenly disappeared?
This question listens to be silly but the results for this will be very serious. The sun is responsible for all the planets in the solar system. The energy released from the sun per second is equal to the energy released from the blasting of 1,00,00,00,00,000 hydrogen bombs. It takes 8 minutes and 20 seconds for the sunlight to reach our Earth so, we will not notice that the sun has disappeared immediately. If the sun disappeared we will notice it after 8 minutes and 20 seconds. Because of the suns gravitational force, all the planets are revolving in their orbits correctly. So if the sun disappeared all the planets in our solar system will go randomly and may hit me another. If any planet or asteroid doesn't hit our earth it will move nearly with a speed of 1,08,000 km/hr and after travelling for 1,00,00,00,000 years it will cross our milky way galaxy and may go into another galaxy or in our milky way there are crores of other stars so, our earth may go near of any star and because of its gravitational force, it will revolve around it like how it revolves around the sun. If we see the environment on our earth there will be no day. It will be dark always but, the light will be there because of electricity from power plants. Because there is no sun photosynthesis will not happen in pants and small plants will die but some very big trees can survive for a few months and there is no problem for us as oxygen will not be there as all plants will die because all the living things on the earth can survive up to 1000 years with the oxygen present in the earth now as we have 1,000,000,000,000,000,000 kg of oxygen. But as there are no plants, the 0.04% of carbon dioxide which is present on our earth will increase and by breathing that carbon dioxide we may die or go into a coma and all the animals and humans will die because of no food as there are no plats and temperature on our earth will go to -73 degrees celsius and with this, the surface of the seas will freeze and almost every animal will die but the animals which are underwater will survive because of the heat from the core of our earth. Our beautiful earth will convert into an ice ball. These are the results if the sun suddenly disappears.
2. Why Sky is in blue colour?
This is also one question that most people had in this world. Most of us will think that as the sea was in blue colour the light reflected by the sea was the reason which made the sky blue colour but, it is wrong. There are 2 main reasons for the sky to look in blue they are the light from the sun and the atmosphere of our earth. We all know that the light from our sun is a mixture of Violet, indigo, blue, green, yellow, orange and red. the wavelength will be different for different colours in this mixture, red colour will have a large wavelength and violet, blue and indigo will have a small wavelength. Our earth contains many gases like nitrogen and oxygen. Now when the light from our sun will hit these gas molecules it will scatter in different directions and this phenomenon is called light scattering. As the red colour has a large wavelength the chance for hitting gas molecules was very low and s the blue light has a low wavelength this will collide with most of the gas molecules and will scatter in all directions and make the sky blue. Now, you may get a doubt that the wavelength of violet colour was less when compared to blue so the violet colour should scatter much and should make our sky violet and there are also two reasons for it if we see the solar spectrum violet colour is less when compared to blue colour.
Even violet colour was more scattering as the blue colour was more than violet colour makes the sky blue. Also if we see the rainbow we are not able to see violet colour clearly. Our eyes are more sensitive to see blue colour than the violet colour and this is also a reason. And the favourite colour of 33.5% of the world is blue because of this reason.
3. Spy Cat:
American ''Central intelligence agency'' (CIA) was started a project called ''Operation Acoustic Kitty'' in 1961. With this, they will make cats spy cats. This project was done because to know what the Russian ambassador is talking about when they came to America. They chose cats as they will go silently. First, they chose a cat and surgeons have done surgery for it and arranged a transmitter in its head and a microphone in its ears and thin antennas through its hair and arranged few small batteries to power all these items in its body. they gave a lot of training for that cat and done an operation so that it feels less hunger and it took 5 years to complete the training for it. It took 20 Million dollars for operations and those tiny components and for its training in the 1960s and now it is nearly equal to 1,47,00,00,000 today. Now the cat is completely ready in 1966 and if that cat goes to a place the components in its body will record sounds and sent them to the CIA. So they wanted to test the cat and they wanted to hear the sounds of two persons who were in a park so, they left the cat to go to them but while it's crossing the road a taxi hit that cat and it died immediately. So, the CIA stopped this project from the year 1697.
4. The longest train:
BHP Iron Ore Train is the longest train in the world and it is 7300 meters long which means this train is more than 7 km long. To run this train we require 8 diesel engines. This train will carry iron ore from the iron mining site to the port in Australia. This train can transport 82,000 metric tons of iron ore in a single trip. This train requires 20,800 litres of diesel for a single trip. From the year 2001, this train has a record of the longest and heaviest train in the world.
5. Alien Hand Syndrome:
Some people will have this ''Alien Hand Syndrome'' this is a neurological disorder and the people who will have this syndrome their one hand will not be in their control it means one of their hand will move or do anything without their control. This will mostly happen with a non-dominant hand. With this syndrome sometimes that hand will do the opposite of what we think, for example, if we want to open the door it will try to close it and sometimes it will hit the same person. This syndrome will come for most people who have brain stroke, tumour and more than 150 people are affected by this syndrome worldwide.
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