These are 5 interesting questions you have on your mind, but never asked google.
▶1. WHY THERE ARE NO PARACHUTES IN AEROPLANE?
During a free fall, no one will survive without a parachute, and parachutes are compulsory in every military plane. But do you ever wonder why there are no parachutes in passenger planes where hundreds of people are traveling? While taking a decision we have to think about the pros and cons. Maintaining parachutes in a passenger plane has so many cons than pros, let see what are they?
1)Professionals who do free falls have already a lot of training about things such as in which altitude they have to jump, weather conditions, and the gap between person to person while jumping, etc. A normal person without knowing all these may not survive such fall with parachute also.
2)People who perform free falls as a habit consider an altitude 15,000 meters and such planes have a separate jumping ramp on the backside. But passenger Aeroplanes fly at an altitude of 35,000 meters with no jumping ramp, even if we jump from such height we have to wear an oxygen cylinder, regulator, mask, helmet, and flying suit, providing all these gear to passengers is impossible.
3)A parachute bag weighs 7 to 10 kilograms, maintaining hundreds of such bags increases fuel cost and to cover that, flight ticket cost must be raised.
4)Even if all parachutes are maintained, it is found that 90% of the plane crashes are occurring during takeoff and landing that's why it is better not to have parachuted in passenger planes.
▶2.WHY SEA SAND DOES NOT USE IN CONSTRUCTION?
Do you ever wonder why sea sand is not using in building or any other construction? Here some of the disadvantages of using sea sand in Construction.
1)Normal sand we use for building construction has a rough surface and uneven shape when we see through a microscope, this helps in better interlocking and bonding with cement and iron. When it comes to sea sand it has a very smooth surface and round shape when we see through a microscope this makes them slippery in nature and their interlocking with cement and iron is very poor.
2)Sea sand also contains too much salt in it and because of that iron gets rust easily and reduces bonding.
3)Removing salt from sea sand is also a costly process and time consuming.
4)If we build a building from sea sand it lasts only for 5 years and may collapse at any time after that.
That's why we don't use sea sand in construction.
▶3.WHAT HAPPENS IN OUR BODY WHEN WE GET AN ELECTRIC SHOCK?
Do you ever wonder what happens in our body when we get an electric shock? These are some interesting facts for you.
1)Flow of electrons is called current and we measure current in Amperes .The flow of 62,50,00,00,00,00,00,00,000 electrons in one second is called 1 Ampere.
2)Our body also runs on small electric pulses from the brain to other parts, but this current is very less.
3)When we get an electric shock from outside our muscles shrink, and our breathe stops because of lung damage. Here the amount of electricity and its damage.
1 milli Ampere - gives
Tingling
sensation.
20 milli Ampere - diaphragms
below
the Lungs get
shrink and
breathing
stops.
50-100 milli Ampere - Heart Beat stops.
1500 milli Ampere - Organs get burnt.
4)Not just taking lives, Electric shock also can revive, when someone gets Heart attack a small amount of electric shock from a device called Defibrillator can kick start the Heart again into functioning.
▶4.WHY APPLE COMPANY PRODUCTS ARE SO EXPENSIVE?
Do you ever wonder why Apple company products are too much costly than others? what is the specialty in Apple products? I clarify all these doubts for you.
1)Apple company doesn't compromise in its product Design, Quality, User Interface, Operating system, and mainly Privacy. We can say in all these aspects Apple is best than other company products.
2)Another reason for the high cost is because of its brand value, some people use it as a status symbol and Apple knows they will pay as much as they mention.
3)For example, the iPhone 10 manufacturing price is $370.25 dollars and its sale price is $999 dollars. It has 60% more margin that's why Apple company has more profits.
4)In 2019 Apple company announced a report. According to that report, it has a $245 Billion dollars cash reserve and it spends $16 billion dollars for research purposes to produce new innovative products every year.
Some people say if you use Apple company product you will addict to its environment and never came back to other products.
That is why Apple products are so expensive.
▶5.WHAT IS THE LETTER "E" IN A CALCULATOR?
Do you ever wonder what is the letter "E" while calculating big numbers in a mobile or calculator?I will clarify all doubts about it.
1)While calculating big numbers such as adding or multiplying we may end up getting a very big number than before. It is impossible to display the entire number on such a small screen. So we get ''E'' IN the middle.
2)'' E'' means exponent, it shows how many digits beside a number.
For example, 3E+6 displayed which means 6 zeroes beside 3.
3)If we multiply 100000 with 100000 we get 1E10 which means 1*10^10 or 1E+10 that is 10 zeroes beside 1.
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