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Why is the Earth’s core cooling so fast?

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A new study has revealed that the Earth’s core could be cooling faster than previously expected. The extremely hot interior of the planet we inhabit is cooling, and scientists are unclear as to why this process might be accelerating.

Human beings have set their sights on discovering new planets like Mars, through different space missions and also through documentaries about the red planet, but the reality is that many aspects of the nature of the Earth are still unknown. while the researchers from Carnegie and ETH Zurich studying a mineral found at the boundary between Earth’s outer core and lower mantle, they found that our planet’s interior may be cooling much faster than we had imagined.

Earth Evolution

Earth is a planet that has been cooling for 4.5 billion years. Originally it was very hot from the surface to the core covered by oceans of magma. As it cooled from the outside in, a solid crust of rock formed.

At present, the core still emanates large amounts of heat towards the mantle, which gives rise to vital processes such as the movement of tectonic plates and the activity of volcanoes. How long it will take for Earth to cool down is a mystery, but the scientists of the study that we will explain next are already looking for answers.

A key mineral: bridgmanite

The boundary layer between the outer core and the lower mantle is mainly composed of bridgmanite, so studying the heat conductivity of this mineral could imply important discoveries, although reproducing the conditions in a laboratory is not an easy task.

The researchers place samples of bridgmanite in a diamond anvil cell that is heated using a laser system to simulate the intense pressures and temperatures deep inside the Earth. They then measure the thermal conductivity of this mineral through a optical absorption system.

Following this analysis, the researchers found that bridgmanite was about 1.5 times better at conducting heat than had long been thought. This, in turn, denotes that heat passes more easily from the core to the mantle, thereby accelerating the rate at which the Earth’s interior cools.”

This process could become even faster over time, because as bridgmanite cools, it turns into another mineral called post-perovskite which is an even more efficient conductor of heat. By the time this new mineral starts to make up the majority at the boundary, the Earth’s interior could cool even faster.

Research Findings

“Our results could give us a new perspective on the evolution of Earth dynamics,” said Motohiko Murakami, corresponding author of the study. “They suggest that Earth, like the other rocky planets Mercury and Mars, is cooling and going idle much faster than expected”. Although the researchers cannot say for sure how long this process might take, it is important to note that this acceleration is occurring on geological timescales. The process may be accelerating, but the cooling of the Earth will still take place for billions of years.

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Wearables

Xiaomi Mi Band 7 with NFC is already available for order. Named price

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Xiaomi Mi Band 7 with NFC is already available for

According to the source, the latest Xiaomi Mi Band 7 fitness bracelet is already available for pre-order in China, where it is priced at about $40.

Xiaomi Mi Band 7 with NFC is already available for order.  Named price

Xiaomi Mi Band 6

Earlier, there was information that the production of Xiaomi Mi Band 7 has already begun, and the company is preparing to launch a new generation of branded fitness bracelets. The official poster confirmed that the presentation will take place on May 24th. Usually, Xiaomi new products come out in China immediately after the announcement.

Xiaomi Mi Band 7 with NFC is already available for order.  Named price

According to preliminary information, Xiaomi Mi Band 7 will be available in two versions: standard and with NFC module. It will be equipped with a 1.56-inch AMOLED screen with a resolution of 490×192 pixels, a 250 mAh rechargeable battery, heart rate and SpO2 sensors, and a GPS module.

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Rostec introduced a portable radar system to protect against drones

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Rostec introduced a portable radar system to protect against drones

Ruselectronics holding, part of the Rostec State Corporation, has developed a portable radar station (RLS) to protect critical infrastructure from small drones. This was stated in the press service of Rostec.

Rostec introduced a portable radar system to protect against drones

“The device can detect small-sized drones at a distance of more than 1,000 m, including at ultra-low altitudes. The radar was created on a domestic element base, weighs only 5 kg and can be used as a wearable device.– said the press service.

They noted that the station is capable of detecting even inconspicuous drones that are in hover mode by rotating the propellers. In addition, the device can be used to search for ground objects: the radar is able to detect a car at a distance of more than 10 km.

As part of the Ruselectronics holding, the development of the radar is carried out by the Rybinsk Instrument Engineering Plant. “The radar can simultaneously track up to 32 targets, and also work in conjunction with other radar monitoring systems. To date, the station has already passed preliminary tests.– Andrey Komogortsev, General Director of the Rybinsk Instrument-Making Plant, described the novelty.

Rostec is creating a line of various means of combating UAVs. Among them are the Rat multifunctional mobile complex with a laser destruction system, the Ataka-DBS anti-civil UAV complex and electromagnetic guns.

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Components

The GeForce RTX 3050 can now also be almost fully used for Ethereum mining. Nvidia LHR v3 security cracked 90%

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The GeForce RTX 3050 can now also be almost fully

A couple of weeks ago, the LHR protection in Nvidia graphics cards was cracked, which allowed everyone to use accelerators for Ethereum mining at full capacity again. But in fact, then the protection of LHR v2 was cracked, but not LHR v3.

The GeForce RTX 3050 can now also be almost fully used for Ethereum mining.  Nvidia LHR v3 security cracked 90%

The LHR v3 version is present in Nvidia’s latest releases: RTX 3050 and RTX 3080 12GB. And it is still not completely hacked, but now the NiceHash miner is able to use 90% of the performance of these cards when mining cryptocurrency. It’s not a complete hack yet, but it’s getting very close.

Fortunately, at the moment the cryptocurrency market is in a state of decline, so it hardly makes any sense to buy the same RTX 3050 for mining, which means that gamers need not worry for now.

By the way, a large article has been published on our website with an analysis of methods for cracking Nvidia protection.

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