What would happen if Earth stopped spinning ?

What would happen if Earth stopped spinning ..?? 

 

 As you probably know, the Earth is rotating on its axis. This gives us day and night. Of course it’s impossible, but what would happen if the Earth stopped spinning? Remember, this isn’t possible, it can’t happen, so don’t worry.

Everything would be launched in a ballistic trajectory sideways
The first thing to think about is the momentum of everything on the surface of the Earth. You’re held down by gravity and you’re whizzing through space at a rotational velocity of 1,674.4 km/h (at the equator). You can’t feel it because of momentum. Just like how you can’t feel that you’re moving in a car going down the highway. But you feel the effects when you stop, or get into an accident. And so, if the Earth suddenly stopped spinning, everything on the surface of the Earth at the equator would suddenly be moving at more than 1,600 km/hour sideways. The escape velocity of Earth is about 40,000 km/hour, so that isn’t enough to fly off into space; but it would cause some horrible damage as everything flew in a ballistic trajectory sideways. Imagine the oceans sloshing sideways at 1,600 km/hour.

The rotational velocity of the Earth decreases as you head away from the equator, towards the poles. So as you got further away from the equator, your speed would decrease. If you were standing right on the north or south pole, you’d barely even feel it.

A day would last 365 days
The next problem is that day and night wouldn’t work the same any more. Right now the Earth is rotating on its axis, returning the Sun to the same position every 24 hours. But if the Earth stopped spinning, it would then take 365 days for the Sun to move through the sky and return to the same position. Half of the Earth would be baked for half a year, while the other hemisphere was in darkness. It would get very hot on the sunny side, and very cold in the shadowed side. You can imagine how that would be devastating to plants and animals. We get a hint of this at the poles, where you can experience weeks of permanent night and then weeks of permanent day. But imagine 6 months of night, followed by 6 months of day.

What Would Happen if the Earth Stopped Spinning

The Earth would become a perfect sphere
This might seem minor compared to the other catastrophes, but the Earth would become an almost perfect sphere. The Earth is currently rotating on its axis, completing one turn approximately every 24 hours. This rotational velocity causes the Earth to bulge out around its equator, turning our planet into an oblate spheroid (a flattened ball). Without this spin, gravity would be able to pull the Earth into a nice perfect sphere. This sounds interesting and probably harmless, but it’s actually a *big* problem. Because of the Earth’s bulge in the middle, the oceans are held out at the equator by 8 km. On perfect sphere Earth, the world’s oceans would redistribute, flooding many regions of the planet with an immense volume of water. We’d end up with a single continent around the middle of the planet, with oceans surrounding the north and south poles.

The Earth would no longer be tilted
The Earth’s tilt is defined by how the planet is rotating compared to the Sun. This axis of rotation defines the Earth’s seasons. But without any rotation, the concept doesn’t make sense any more. There’s still a north pole of the planet, where the radiation from the Sun is at its lowest angle, and an equator, where the light hits most directly. But there would no longer be seasons.

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Interesting Facts About Earth

Interesting Facts About Earth

 

Earth is the place that each person calls home. It is home to over six billion people and around 8.7 million different species. While everyone lives on Earth, there are many interesting facts that people do not know about the planet. Earth is unique in our solar system as being the only known planet to support the multitudes of different life. Earth facts can reveal the true nature of the place life calls home.

The Earth is not a Perfect Circle

It was long thought that Earth was spherical in shape. After careful studies and measurements by scientists, it is now known that earth is more of an oval. If you look at the diameter from pole to pole, Earth is 7882.4 miles long. If you measure the diameter from the equator line, earth measures 7908.9 miles long. The reason for the difference is how the Earth spins. It spins on its axes, which goes through the poles, making some of its mass move away from the poles and to its outside center.

There are Few Craters on Earth

When Earth is compared to the Moon, it has less impact craters caused by space debris. The Moon is documented to have billions of craters, as can be seen by looking at it. The reason behind so few craters on the Earth is that Earth possesses an atmosphere, which creates fiction for anything coming into it. The friction caused by an object moving at hundreds of thousands of miles per second entering the Earth?s atmosphere causes the object to burn up before hitting the ground. The Moon has no atmosphere and cannot stop even the smallest meteor hitting its surface, which is why there are so many craters on the Moon.

The Earth's Atmosphere

The atmosphere around the Earth keeps the animals and creatures living upon its surface a great deal as far as the requirements of life goes. It weighs around five trillions tons altogether, which is calculated based on the atmospheric pressure it exudes on the surface. The pressure is around one kilogram per square centimeter. The atmosphere protects its inhabitants from harmful space objects like meteors by burning them up before impact as well as harmful light rays such as X-rays, ultraviolet light, infrared and gamma rays.

Gravity is not the Same Everywhere

v There is an area in Canada called Hudson Bay that has a lower gravitational force than other regions of the earth. Scientists believe that 25 to 45 percent of the gravitational flux is due to a giant glacier sheet that was in the area long ago causing the Earth's crust to subside somewhat. The rest of the reason behind the gravitational flux can be explained by down drag due to the magma in the Earth's mantle.

The place that all known living creatures live is a fascinating place. The Earth facts discussed in this article can give an idea of the type of place life call home. The most important thing that people of planet Earth can do is to look after Earth so that all future generations can experience the wonders that Earth holds.

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In the earth where the gravity of the earth becomes zero..?

In the earth where the gravity of the earth becomes zero..?

In a perfectly-shaped sphere, with a smooth surface, and composed of exactly the same substance with the same density throughout it, the force of gravity is zero at the exact center of the sphere. That does NOT mean that 'gravity becomes zero' at the center. It means that at the center, for every speck of mass pulling on you in any direction with any force, there's another speck of mass pulling you in exactly the opposite direction with exactly the same amount of force, so the whole thing adds up to zero. In the real Earth, we can't tell exactly where that point is, because the Earth is not a perfect sphere shape, It doesn't have a smooth surface, and we don't know every last little detail about the distribution of mass inside it.

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Can you have zero gravity conditions on Earth..?

 Can you have zero gravity conditions on Earth..?

Gravity will always be there, but you can set up an arrangement where you will appear to be weightless. Such an arrangement is in a plane that flies up and swoops down so that its path is a circle standing on edge. You will hang in the plane and appear to be weightless. What is actually happening is that for a few seconds the plane is falling at the same speed as you are so if you measured your weight on scales in the plane, you would appear to weigh zero.

Zero gravity is impossible on earth. Actually, zero gravity is impossible anywhere. Gravity acts through millions of light-years, holding galaxy groups together, so there's no way that you can eliminate gravity this close to a major mass like the earth.

However - you CAN have a situation that is mathematically and physically equivalent to zero gravity, and that is free fall. Jump on a trampoline, you'll spend a few fractions of a second in free fall, which is just like zero-G. NASA does it with the Vomit Comet, which is a modified KC-135 aircraft that flies in parabolic paths to give astronauts-in-training a free fall experience. 

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Some Amazing Facts Collection part 2

Some Amazing Facts Collection part 2

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1.The diameter of a proton is approximately 0.000000000001 mm (1/25,000,000,000,000 in).
2.The lightning bolt is 3 times hotter than the Sun.

3.If an item moves very, very fast, it becomes smaller and heavier.
4.The bark of the redwood tree is fireproof.
5.The Atlantic Ocean grows at about the same rate as your fingernails.
6.Lightning strikes about 6,000 times per minute on our planet.
7.The sum of the digits of a number which is a multiple of 9 is always 9
8.The Earth revolves around the Sun at a speed of about 18.5 miles/sec (30 km/sec)
9. there is no atmosphere on moon
10.If an atom were the size of a stadium, its electrons would be as small as bees
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Which Came First, The Chicken Or The Egg?

Chickens, as a species, became chickens through a long, slow process of evolution. At some point, a chicken-like bird produced an offspring that, due to some mutation in its DNA, crossed the threshold from mere chicken likeness into chicken actuality. That is to say, a proto-chicken gave birth to a real-life official chicken. And since that real-life official chicken came out of its own egg, we can say that the egg came first.

Another way to look at the question would be to ask which came first in evolutionary history. Once again, the egg takes precedence. Many characteristics of the modern avian egg—namely an oblong, asymmetrical shape and a hardened shell—were in place before birds diverged from dinosaurs about 150 million years ago. "A lot of the traits that we see in bird eggs evolved prior to birds in theropod dinosaurs," says Darla Zelenitsky, of the University of Calgary.

Another key moment in the history of avian eggs occurred at least 150 million years before that, when a subset of four-limbed vertebrates evolved to produce amniotic eggs. The embryos within the eggs were surrounded by three fluid-filled membranes that provide nourishment, protection, and a way to breathe. The earliest amniotic eggs contained large amounts of yolk, says James R. Stewart, a reproductive physiologist at East Tennessee State University. "You still see that in birds, crocodilians, and snakes," he explains. Like other placental mammals, we humans lost our yolk somewhere along the line, but our eggs still come with a vestigial yolk sac.

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Why 0! is equal to 1 ..??

Why 0! is equal to 1 ..??

We Know ,

n! = n x (n-1)!

Dividing both sides by n , We get

n!/n = n x (n-1)!/n 

Or, n!/n = (n-1)!

Or, (n-1)! = n!/n

Now , Putting n=1 , We get

(1-1)! = 1!/1

i.e. 0! = 1 

  

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What would happen if you drilled a tunnel through the center of the Earth and jumped into it?

What would happen if you drilled a tunnel through the center of the Earth and jumped into it..?

Want to really get away from it all? The farthest you can travel from home (and still remain on Earth) is about 7,900 miles (12,700 kilometers) straight down, but you'll have to journey the long way round to get there: 12,450 miles (20,036 kilometers) over land and sea.

Why not take a shortcut, straight down? You can get there in about 42 minutes -- that's short enough for a long lunch, assuming you can avoid Mole Men, prehistoric reptiles and underworld denizens en route. Granted, most Americans would end up in the Indian Ocean, but Chileans could dine out on authentic Chinese, and Kiwis could tuck into Spanish tapas for tea [sources: NOVA; Shegelski].

Of course, you'd be in for a rough ride. First, you'd have to pass through 22-44 miles (35-70 kilometers) of continental crust (3-6 miles/5-10 kilometers on the ocean floor) followed by 1,800 miles (2,900 kilometers) of mantle. After that, you'd have to traverse a Mars-sized outer core of liquid iron churning as hot as the sun's surface (10,000 degrees F, or 5,500 degrees C), then a solid, moon-sized inner core, and, some studies suggest, a liquid innermost core [sources: Angier; Locke; NOVA].

For sake of argument (and survival) let's pretend the Earth is a cold, uniform, inert ball of rock. While we're at it, let's ignore air resistance.

At the Earth's surface, gravity pulls on us at 32 feet (9.8 meters) per second squared. That means that, for each second you fall, you speed up by 32 feet per second -- but only near Earth's surface. Gravity is a function of mass, and mass is a property of matter. On the surface, all of Earth's matter lies below your feet but, as you fall, more and more of it surrounds you, exerting its own gravity. These horizontal tugs counterbalance each other and cancel out, but the increasing proportion of mass above your head exerts a growing counterforce to the proportionately decreasing mass below, so your acceleration slows as you near the core. At the planet's center, your acceleration due to gravity is zero -- Earth's mass surrounds you, gravity cancels out and you are weightless [sources: Locke; Singh].

You're still moving at a heck of a clip, though, so don't expect to stop there. Halfway to the center, your speed hits 15,000 mph (24,000 kph); 21 minutes after jumping in, you blow past the center at 18,000 mph (29,000 kph). Another 21 minutes later, with gravity slowing you as you go, you reach the far side and stop briefly in midair. Unless someone catches you, you'll then head back the way you came and start all over again. In our idealized case, this will continue indefinitely, like a pendulum or a spring, in a process called harmonic motion

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Funniest Math/Science Questions and answers

Q. How can you drop a raw egg onto a concrete floor without cracking it?

A. Concrete floors are very hard to crack!



Q. If it took eight men ten hours to build a wall, how long would it take
four men to build it?

A. No time at all it is already built.



Q. If you had three apples and four oranges in one hand and four apples
and three oranges in the other hand, what would you have?

A. Very large hands. (Good one)



Q. How can you lift an elephant with one hand?

A. It is not a problem, since you will never find an elephant with
one hand.




Q. How can a man go eight days without sleep?

A. No Probs , He sleeps at night.



Q. If you throw a red stone into the blue sea what it will become?

A. It will Wet or Sink as simple as that.



Q. What looks like half apple ?

A: The other half.



Q. What can you never eat for breakfast ?

A: Dinner.



Q. What happened when wheel was invented ?

A: It caused a revolution.



Q. Bay of Bengal is in which state?

A: Liquid

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Math Puzzle Questions

1. What is come in place of question mark (?) in the following series?





(a) HS

(b) IT

(c) IS

(d) HT



Solution:

2. If A is substituted by 4, B by 3, C by 2, D by 4, E by 3, F by 2 and so on, then what will be total of the numerical values of the letters of the word SICK?

(a) 11

(b) 12

(c) 10

(d) 9



Solution:

Total value = 4 + 2 + 2 + 3 = 11.

Answer: (a)



3. Four of the following five are alike in a certain way and hence form a group. Which one does not belong to the group?

(a) 52

(b) 70

(c) 48

(d) 68



Solution:All the numbers are multiple of 4, except 70.

Answer: (b)



4. If U is denoted by 7, M by 2, I by 5, O by 1, K by 8 and J by 4, then what will be the numeric form of the word MOUJIK when written in the reverse order?

(a) 217458

(b) 845712

(c) 854712

(d) 857412



Solution:

217458 is the number.

Now reverse the number 854712

Answer: (c)



5. How many letters of the word FAINTS, will their order in the word and that when the letters are arranged in the alphabetical order, remain the same?

(a) Two

(b) One

(c) Three

(d) Nil



Solution:

When the letters are arranged in the alphabetical order, two remains the same.

Answer: (a)



6. In a certain code GARNISH is written as RGAINHS. How will GENIOUS be written in that code?

(a) NEGOISU

(b) NGEOISU

(c) NGESUOI

(d) NEGSUOI



Solution:

So now, GENIOUS be written as;

Answer: (b)



7. How many such pairs of letters are there in the word MISPLACE each of which has as many letters between its two letters in the word as there are between them in the English alphabet?

(a) One

(b) Nil

(c) Two

(d) Three



Solution:

Answer: (c)



8. In a certain code INKER is written as GLLGT and GLIDE is written as EJJFG. How will JINKS be written in that code?

(a) GFOMU

(b) HGMMU

(c) HGOGH

(d) HGOMU



Solution:

As,

And,

Similarly, JINKS be written as;

Answer: (d)



9. If ‘AND’ is written as ‘EQF’ and ‘THE’ as ‘XKG’ then how will ‘COM’ be written?

(a) HRO

(b) GQO

(c) GRO

(d) GRN



Solution:

As,

And,

Similarly, ‘COM’ be written as;

Answer: (c)



10. Four of the following five are alike in a certain way based on the positions of their elements in the English alphabet and hence form a group. Which one does not belong to the group?

(a) UQ

(b) KG

(c) SO

(d) QL



Solution:

QL

Answer: (d)

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