Ostechno's Posts
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sleuthhound:Baba, sheybi u he Google, Google am now, I dey tell u something https://www.prisonpolicy.org/blog/2020/06/05/policekillings/ If you're note sure of something, use your Google |
Infinix is the most used phone in Nigeria |
Officialrero:Na empty barren dey make noise |
We think it's only in Nigeria corps kill civilian, infact there's much more cases in USA than Nigeria every year |
Come check Fuoye own ![]() |
Hi, I have an old hp laptop but the battery doesn't last 2 minutes I don't want to buy battery cause most of them are fake I decided to open up the battery What if I just buy the battery cells and then replace it, will that be ok
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2gbasky22:r The man doesn't give alot He donated $100 for corona, even people wey no rich pass am donate more than that He's not much a giver but na him money sha |
junior20202020:Bro, your weak erection isn't caused by masturbation, do you consume alot of alcohol, sugar or tobacco, do you have high or low blood pressure, or do you have cardiovascular disease, these are the things that could lead to weak erection, I'll say you should see your doctor Masturbation doesn't cause weak erection |
SultanOfAbia:Best comment on this thread You made my day |
Eulalia:A fool at 40 is a fool Forever You're a fool. Start shawarma did the right thing by waiting to get the bank statement Go to a website and place an order of 1500 with bank deposit, if you send 1600, you will not receive your order because the amount on the invoice is 1500, they'll refund your money until after you've confirmed you made the payment On a norms, the woman should win the court case because she did the right thing |
A 4.4 billion year old zircon crystal from Australia is the oldest piece of Earth yet found. The source rocks for the small shards have not yet been identified. (Image credit: John Valley, University of Wisconsin.)
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A fist-size sample of the Acasta Gneisses, rocks in northwest Canada that are the oldest known rocks on Earth. (Image credit: Mike Beauregard/Creative Commons.)
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Planet Earth doesn't have a birth certificate to record its formation, which means scientists spent hundreds of years struggling to determine the age of the planet. So, just how old is Earth? By dating the rocks in Earth's ever-changing crust, as well as the rocks in Earth's neighbors, such as the moon and visiting meteorites, scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years. How old are your rocks? Scientists have made several attempts to date the planet over the past 400 years. They've attempted to predict the age based on changing sea levels, the time it took for Earth or the sun to cool to present temperatures, and the salinity of the ocean. As the dating technology progressed, these methods proved unreliable; for instance, the rise and fall of the ocean was shown to be an ever-changing process rather than a gradually declining one. And in another effort to calculate the age of the planet, scientists turned to the rocks that cover its surface. However, because plate tectonics constantly changes and revamps the crust, the first rocks have long since been recycled, melted down and reformed into new outcrops. Scientists also must battle an issue called the Great Unconformity, which is where sedimentary layers of rock appear to be missing (at the Grand Canyon, for example, there's 1.2 billion years of rock that can't be found). There are multiple explanations for this uncomformity; in early 2019, one study suggested that a global ice age caused glaciers to grind into the rock, causing it to disintegrate. Plate tectonics then threw the crushed rock back into the interior of the Earth, removing the old evidence and turning it into new rock. In the early 20th century, scientists refined the process of radiometric dating. Earlier research had shown that isotopes of some radioactive elements decay into other elements at a predictable rate. By examining the existing elements, scientists can calculate the initial quantity of a radioactive element, and thus how long it took for the elements to decay, allowing them to determine the age of the rock. The oldest rocks on Earth found to date are the Acasta Gneiss in northwestern Canada near the Great Slave Lake, which are 4.03 billion years old. But rocks older than 3.5 billion years can be found on all continents. Greenland boasts the Isua supracrustal rocks (3.7 to 3.8 billion years old), while rocks in Swaziland are 3.4 billion to 3.5 billion years. Samples in Western Australia run 3.4 billion to 3.6 billion years old. Research groups in Australia found the oldest mineral grains on Earth. These tiny zirconium silicate crystals have ages that reach 4.3 billion years, making them the oldest materials found on Earth so far. Their source rocks have not yet been found. The rocks and zircons set a lower limit on the age of Earth of 4.3 billion years, because the planet itself must be older than anything that lies on its surface. When life arose is still under debate, especially because some early fossils can appear as natural rock forms. Some of the earliest forms of life have been found in Western Australia, as announced in a 2018 study; the researchers found tiny filaments in 3.4-billion-year-old rocks that could be fossils. Other studies suggest that life originated even earlier. Hematite tubes in volcanic rock in Quebec could have included microbes between 3.77 and 4.29 billion years ago. Researchers looking at rocks in southwestern Greenland also saw cone-like structures that could have surrounded microbial colonies some 3.7 billion years ago. Meet the neighbors In an effort to further refine the age of Earth, scientists began to look outward. The material that formed the solar system was a cloud of dust and gas that surrounded the young sun. Gravitational interactions coalesced this material into the planets and moons at about the same time. By studying other bodies in the solar system, scientists are able to find out more about the early history of the planet. The nearest body to Earth, the moon, doesn't experience the resurfacing processes that occur across Earth's landscape. As such, rocks from early lunar history still sit on the surface of the moon. Samples returned from the Apollo and Luna missions revealed ages between 4.4 billion and 4.5 billion years, helping to constrain the age of Earth. How the moon formed is a matter of debate; while the dominant theory suggests a Mars-size object crashed into Earth and the fragments eventually coalesced into the moon, other theories suggest that the moon formed before Earth. [Related: How Was Earth Formed?] In addition to the large bodies of the solar system, scientists have studied smaller rocky visitors that have fallen to Earth. Meteorites spring from a variety of sources. Some are cast off from other planets after violent collisions, while others are leftover chunks from the early solar system that never grew large enough to form a cohesive body. Although no rocks have been deliberately returned from Mars, samples exist in the form of meteorites that fell to Earth long ago, allowing scientists to make approximations about the age of rocks on the Red Planet. Some of these samples have been dated to 4.5 billion years old, supporting other calculations of the date of early planetary formation. More than 70 meteorites that have fallen to Earth have had their ages calculated by radiometric dating. The oldest of these are between 4.4 billion and 4.5 billion years old. Fifty thousand years ago, a rock hurled down from space to form Meteor Crater in Arizona. Shards of that asteroid have been collected from the crater rim and named for the nearby Canyon Diablo. The Canyon Diablo meteorite is important because it represents a class of meteorites with components that allow for more precise dating. In 1953, Clair Cameron Patterson, a renowned geochemist at the California Institute of Technology, measured ratios of lead isotopes in samples of the meteorite that put tight constraints on Earth's age. Samples of the meteorite show a spread from 4.53 billion to 4.58 billion years. Scientists interpret this range as the time it took for the solar system to evolve, a gradual event that took place over approximately 50 million years. By using not only the rocks on Earth but also information gathered about the system that surrounds it, scientists have been able to place Earth's age at approximately 4.54 billion years. For comparison, the Milky Way galaxy that contains the solar system is approximately 13.2 billion years old, while the universe itself has been dated to 13.8 billion years. Source: https://www.space.com/24854-how-old-is-earth.html CC lalasticlala
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farem:You're a complete fool, idiot |
Newpost:RIP He died at 53 and not 54 |
farem:Oponu leleyi oo |
farem:You're the one that needs healing and deliverance, I can see your a bonafide member of his church All this so called men of God and pastors will go broke if and only if Nigerians come to their senses and then do the right thing |
Jashub:We all be scammer, this is not scam Sha, I no collect anybody money, na just to gain subs, it called blackhat bro |
Jashub:You no sabi anything, NAAT foundation na scam, lol |
scoundrel:Attention that won't get me anything While I'm thinking about how to make money amid this coronavirus, you're telling me I'm looking for attention or whatever, once again you be mumu |
scoundrel:you be mumu whose attenting am i seeking, just posted it in the name of posting and you started talking rubbish |
I just noticed what is written on my towel Corona secondary school What a coincidence The secondary school is actually located in Agbara Lagos
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ceeroh:Lol, cloud for accountant general's office |

