MiDire

  Home  Blog  News  Downloads  Links  FAQ  Guestbook  Forum
News

OSIRIS-Rex sends asteroid samples - by cronywell 24/09/2023 » 12:07

The capsule with samples from the asteroid Bennu separated from the OSIRIS-Rex probe before landing

A capsule containing soil samples collected on the asteroid Bennu on Sunday separated from the US OSIRIS-Rex spacecraft flying near Earth ahead of an upcoming landing, NASA said.

The separation was carried out at an altitude of 102 thousand km about four hours before landing. After re-entering Earth's atmosphere around 10:42 a.m. EDT, the capsule should land in 13 minutes using a parachute system at the Pentagon test site in the Utah desert, 122 km from the city of Salt Lake City.

The capsule will deliver about 250 grams of soil from the asteroid to Earth. After landing, it will be sent to NASA's Johnson Space Center in Houston, Texas.

The OSIRIS-REx spacecraft was launched in 2016 and arrived at the asteroid Bennu in December 2018. The probe was in orbit of the asteroid for two years, during which it was studied remotely.

Having approached the surface of the asteroid in October 2020, the probe touched down with the help of a manipulator arm.

Scientists hope soil samples from Bennu will provide new data on the formation of the solar system 4.5 million years ago. It is assumed that the asteroid's surface may contain matter preserved from the moment of its inception.

This is NASA's first mission to return soil samples from asteroids to Earth. After flying close to Earth, the OSIRIS-REx spacecraft will continue its journey to the asteroid Apophis to study it.

The OSIRIS-REx mission is named after the Egyptian god of the underworld, Osiris, and the asteroid Benn was named after a bird in 2013, symbolizing the resurrection of this god. According to calculations of the trajectory of movement, the asteroid Bennu, discovered in September 1999, has a chance of colliding with the Earth in the period from 2169 to 2199. NASA considers this object to be a potentially dangerous celestial body for the planet.

The mass of Bennu reaches 140 million tons, the diameter is 560 m. the fall of such a body to Earth would lead to catastrophic consequences. Illustration provided by NASA of the OSIRIS-Rex spacecraft on the asteroid Bennu.

Ilustración proporcionada por la NASA de la nave espacial OSIRIS-Rex en el asteroide Bennu


How is a mobile phone made? - by cronywell 22/09/2023 » 13:18

How do you make a cell phone?

Cell phones have a wide variety of uses, from making calls and sending text messages to browsing the Internet and taking photos. In addition, cell phones are used to work, study, make online purchases, play video games and listen to music. Mobile phones are one of the most popular and used technological devices around the world. Since their invention, cell phones have evolved significantly with new features and designs. But have you ever wondered how cell phones are made? In this article, we will explain the step-by-step production process of cell phones. Materials necessary for its manufacture The manufacture of cell phones requires a large amount of materials. The most important components are the processor, RAM, screen, battery and case. In addition, other materials such as copper, aluminum, plastic, glass, gold and silver are needed.fa Industrial processes necessary for its manufacturing The cell phone production process is very complex and requires the intervention of several industries. Below are the processes necessary to manufacture a cell phone: 1. Design: The first step is the design of the cell phone, which includes the selection of materials and the definition of technical specifications. 2. Manufacturing of components: The components of the cell phone are manufactured separately in different factories. For example, the processor is manufactured in a semiconductor factory, the display in an LCD panel factory, and the battery in a battery factory. 3. Assembly: Once the components are ready, they are sent to the assembly factory where they are joined together to form the cell phone. This process includes soldering the components to the motherboard, installing the battery, and placing the case. 4. Testing: After assembly, each cell phone is subjected to rigorous quality tests to ensure that it works correctly. 5. Packaging: Finally, the cell phones are packaged and sent to the distributors. Main global cell phone manufacturers and where they have their factories The main cell phone manufacturers globally are Samsung, Apple, Huawei, Xiaomi and Oppo. These companies have factories around the world, including China, South Korea, the United States and Mexico. Samsung is the largest cell phone manufacturer in the world and has factories in South Korea, Vietnam, India, Brazil and China. Apple, for its part, manufactures the iPhone in China and the United States. Huawei has factories in China and Europe, while Xiaomi and Oppo have most of their factories in China. All consumer technology manufacturers are very wary of showing off their machinery. Perhaps because what for some would be showing their power, for them means exposing themselves to imitations. However, we investigate and can make known the production process of mobile phones, from the first filament to the final packaging. Accessing different factories where millions of smartphones are generated per month is not easy. Before going to the production room you must remove all metal, belts, jackets... even earrings and shoes. Wearing a white coat, rubber flip-flops and a hat that collects hair, everyone who enters the factory must pass through airport-style security arches. Once inside, the plant is divided into production lines in which units of the firm's smartphone are manufactured non-stop. “One every XX seconds”, as highlighted by the different guides of the different factories that opened their doors to us. It all begins in the area called 'SMT', the first phase of order preparation. It is an area where dozens of rolls similar to cinema films are accumulated, but instead of scenes they contain metal filaments that are the raw material for what will later become a high-performance smartphone. The motherboard is prepared in this first phase. All the following components are included with different machines prepared for each of them on the motherboard. A scan is made of each component and if there has been an error, engineers are called to solve the problem. The different robots place the insulator, the glue that ensures that if the phone falls to the ground it is protected, the element that balances the internal and external temperature, etc. Until now the mobile phone has not been touched by anyone. It is from this step that the technicians appear on the scene. A row of workers assembles the parts of several devices at the same time. They place the camera lenses and other external components such as the screen, the touch panel and the fingerprint recognition sensor. Once finished, we move on to 'testing' where the terminal is tested under “extreme” conditions to determine how it works.


Ukraine has broken the naval blockade of Russia - by cronywell 21/09/2023 » 11:50

Ukraine has broken the naval blockade of Russia; the first grain ship is already in Istanbul

The Resilient Africa cargo ship crossed the Bosphorus Strait on Thursday, becoming the first Ukrainian grain ship to reach the Black Sea through a temporary corridor. Citing sources that monitor maritime traffic in the area.

Ukrainian officials said the Palau-flagged ship Resilient Africa had an international crew that left the Ukrainian port of Chornomorsk on Tuesday with a cargo of 3,000.20 tons of wheat. A "small test batch." The Aroyat ship with almost 4,000 tons of cargo is expected to depart next. Ukraine is the region's second-largest grain exporter after Russia, achieving a record wheat harvest for the second year in a row.

The new shipping corridor for Ukraine's main export item is not comparable to the previous one, neither in terms of volume nor security.

But for Ukraine, which faces an invasion by Russian forces, any ship carrying corn or wheat heading to the Black Sea is vital. It needs to sell its crops and there are fewer export routes every day due to Russian aggression and dissatisfaction in some EU states with the import of cheap Ukrainian grain. After withdrawing from the grain export agreement, Russia declared all ships bound for Ukrainian ports military objectives, which, together with the danger of planted mines, de facto closed the Black Sea route to most aircraft carriers.

In early September, Turkish President Recep Tayyip Erdogan attempted to persuade Russian President Vladimir Putin to restore a safe corridor from Odessa to Istanbul, but Putin rejected the proposal. As a result, Ukraine agreed to an alternative route with Turkey, and at the end of August five ships that had been stuck in Ukrainian ports since February last year, when the Russian invasion began, passed through this humanitarian corridor.

Experts have warned that the Kremlin's attempts to crack down on Ukraine's grain exports, the associated effort to deprive it of revenue and get rid of its main grain rival, could result in an escalation in the Black Sea region and disruption of Russian grain supplies, which would result in a jump in global food prices.

According to the Russian analysis company Sovecon, it is politically important for kyiv to demonstrate that it can export grain by sea from the Odessa terminals, even without a deal and without Russian participation. "Moscow will certainly try to cut off supplies through this corridor to show its strength in the Black Sea," analysts said.


More weapons to prolong the war - by cronywell 16/09/2023 » 17:18

The volume of weapons requested by kyiv exceeds NATO capabilities

The scale of military assistance requested by Ukraine exceeds NATO's production capacity, Rob Bauer, chairman of the alliance's military committee, said Saturday.

"The volume of weapons and ammunition that Ukraine is requesting is enormous. (...) The scale and volume of weapons used exceeds our production capabilities," Bauer said at a news conference in Oslo".

According to him, now NATO countries "give away weapons and order new ones, and there is no balance in this process".

In addition, the head of the military committee noted that, when deciding on the supply of weapons to Kiev, countries must also think about the risks to the security of their state and the North Atlantic Alliance as a whole.


Top

© 2004-2026

Document generated in 0.01 second