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Moon plays key role in maintaining Earth’s magnetic field

Published

8 years ago

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moonLondon : The Moon plays a major role in maintaining the Earth’s magnetic field, say researchers, adding that the lunar action, overlooked till now, is thought to have kept the geodynamo active.

The Earth’s magnetic field permanently protects us from the charged particles and radiation that originate in the Sun.

This shield is produced by the geodynamo, the rapid motion of huge quantities of liquid iron alloy in the Earth’s outer core.

To maintain this magnetic field till the present day, the classical model required the Earth’s core to have cooled by around 3,000 degrees Celsius over the past 4.3 billion years.

Now, a team of researchers from the National Centre for Scientific Research and Universite Blaise Pascal in France suggests that on the contrary, its temperature has fallen by only 300 degrees Celsius.

According to the researchers, the Earth has a slightly flattened shape and rotates about an inclined axis that wobbles around the poles.

The Earth continuously receives 3,700 billion watts of power through the transfer of the gravitational and rotational energy of the Earth-Moon-Sun system and over 1,000 billion watts is thought to be available to bring about this type of motion in the outer core.

This energy is enough to generate the Earth’s magnetic field, which together with the Moon resolves the major paradox in the classical theory.

The effect of gravitational forces on a planet’s magnetic field has already been well documented for two of Jupiter’s moons, Io and Europa, and for a number of exoplanets.

This new model shows that the Moon’s effect on the Earth goes well beyond merely causing tides.

The work was published in the journal Earth and Planetary Science Letters.

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Apple is giving a huge discount on its gadgets: Details inside

Published

2 years ago

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May 5, 2022

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If you want to buy an iPhone and were waiting for a nice offer, then we have a piece of good news for you! Amazon Summer Sale May 2022 has begun and they are offering major discounts on various smartphones, laptops, and smart TVs, among others.

The sale is live now on the e-commerce platform with no-cost EMI options and exchange discounts on various products. In addition to this, Amazon has also partnered with several banks including ICICI, Kotak Bank, and RBL so that customers get instant discounts of up to 10% using their cards and EMI transactions.

Customers can easily enjoy this summer sale and get massive discounts on iPhones. They can also compare prices on Flipkart Big Saving Days Sale 2022 before making a purchase.

 

Amazon Summer Sale May 2022: Discount offer on iPhone 13 

Apple’s coveted phone model iPhone 13 in the 128 GB storage model will be available during the Amazon Summer Sale May 2022 for Rs 64,900. The MRP of the phone is Rs 79,900. This means that the customers will be able to enjoy a discount of up to Rs 15,000 on the purchase of the iPhone 13.

If you have an old iPhone in working condition then you will also be eligible to receive another additional discount worth up to Rs 17,000 on the iPhone 13.

Buy at Rs. 64,900 (MRP – Rs. 79,900)

Features of Apple iPhone 13 

The iPhone is powered by an A15 Bionic processor with 6 core CPU. Apart from this, it has 16 core neural engines. With the iPhone 13, up to 512 GB of storage will be available. The iPhone 13 has a 6.1-inch Retina XDR display with 1000 nits brightness.

The iPhone 13 has a 12-megapixel dual rear camera setup. This time a new wide-angle camera has been given, whose aperture is f/1.6. With this, there is support for sensor optical stabilisation. Night mode has been made better than before. The second lens is also 12 megapixels ultra-wide and has an aperture of f/2.4.

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