Did You Know... Why Earth's Core Is Younger Than You Think

Today with exciting news must be shared to everyone. We must feel proud because that are so many things humans have discover in space. If we keep doing this, the technology must be more powerful than what we have before. But today we are trying not to talk about spacecraft. We leaving it to another topic.

The scientists play a major role for human civilization. Eventhough they are not appreciated enough in the society. They don't need a praise to give something useful to society. What we have right now is a bless in disguise. Scientist discover the Earth core might be younger than you think.

Our Earth is 4.54 million years old. At least, it is at the surface. The rocks and minerals at the centre of the earth, on the other hand, are very slightly more youthful. They formed at the same time as the rest of the planet, but recent calculations suggest Earth's core is nevertheless about two and a half years younger than the ground immediately beneath your feet.

Stay close to me because there is no easy way to explain relativity. It takes time to understand Einstein theory. But most people try to carry a simple message that is easy to understand reality is a lot stranger than it might appear.

In our daily life, there are things are surely constant. An hour always takes exactly the same amount of time to pass, for instance and the distance between two stationary objects never changes. In reality, both space and time are rendered malleable by the need to maintain a constant speed of light everywhere in the known universe. Strange as it seems, space and time are stretch and squeeze depending on your position in the universe and the speed at which you are moving.

Earth is 4.54 billion year lifespan. Physicist have known that time will have run at a slower rate in the Earth's core. Earth's core should be a day or two younger than the surface. No one thought to check Feynman's math until 2016. Then phycisist Ulrik Uggerhoj at Aarhus Universiti in Denmark and his colleague ran the calculations for themselves.

The core actually not not two days younger but 2 years. Relativity is anything but arcane: adjusting for the effects of relativity ensures the GPS navigation apps built into smartphones and tablet PCs continue to work as they should.

The GPS system is based on series of very acurate clocks in satelites orbiting earth. Those clocks tick at a different rate in orbit thanthey would at ground level-just as time passes at a slightly different rate for astronauts on the ISS. That's clearly a problem: GPS receivers in smart phones and other devices rely on the clocks in orbit retaining their accuracy.

But now this is where Einstein theories of relativity can help. Physicist think that time passes slightly quicker on the satelites, because they are moving at high speed. Confusingly, they also tell physicist that time passes slightly more slowly on the satelites because the pull of gravity is different in orbit.

Taking both sources of error into account, scientist can calculate exactly how much the GPS clocks will drift each day, and compensate for the error. Doing so keeps the GPS system working accurately day after day, year after year. Einsteins theoris of relativity might seem to have a little impact on everyday life. But without them, many of us would be lost.

Thank you so much for reading my article. I hope you can appreciate the effort of scientist for what we have right now. Leave a comment below.