SpaceX satellites could have led to a great cosmic catastrophe

In May, Elon Muska launched the first group of microsatellites of the constellation of the cosmic Internet called StarLink into Earth’s orbit. However, the project encountered many problems on its development path.

Astronomers have accused SpaceX and other companies that are building constellations of the cosmic Internet that tens of thousands of such devices can hinder observations conducted by terrestrial systems. Each microsatellite will be equipped with solar panels, thanks to which it will be able to function normally dark net hub. The problem is that both its body and solar panels reflect some of the sunlight, which can dazzle observers and prevent observations with ground-based telescopes.

However, Elon Musk claims that nothing like this will happen in the future. He has already commissioned his engineers to reduce the albedo of new microsatellites as much as possible, i.e. the ratio of the amount of light radiation reflected from the satellites and directed towards the Earth’s surface. When one problem was solved, the other appeared.

The European Space Agency has announced that SpaceX and its microsatellites have been forced to change the orbit of their observation satellite called Aeolus. Engineers calculated that if the agency did not react, then Elon Musk’s devices could lead to a cosmic catastrophe by colliding with the satellite, and then lead to a domino effect.

So ESA decided to blow it cold and put its device into safe orbit. In low Earth orbit, it gets tighter every year. Many companies plan to put tens of thousands of new microsatellites there. In their opinion, they will be observing our planet and making important measurements and ensuring communication between Earth’s metropolises. Such a large number of devices may pose a threat to future space missions. If one was lost of control, it could end in cosmic catastrophes, which would be very hard to handle.

More StarLink devices are expected to hit orbit this year. Each of the microsatellites is equipped with a hall-ion ion engine based on krypton. The first part of the constellation will operate at an altitude of 550 kilometers above the Earth’s surface. Ultimately, 7,518 microsatellites are expected to reach orbit, and by 2030 there will be several thousand of them. They will be at an altitude of 340 kilometers, 550 kilometers and 1150 kilometers.

Wireless space Internet from SpaceX is to provide access to the world’s largest treasury of knowledge wherever we find ourselves, namely in the forests of the Amazon, in the Sahara or even on a desert island. The system is to offer network speeds of up to 1 Gb / s, with ping not exceeding 24 ms.

Elon Musk wrote on his Twitter profile that his system would in fact not use the IP protocol. Of course, it will support it in the exchange of packets with the global network, but inside the StarLink network it will be done directly on the basis of a peer to peer network, with encryption on the entire communication channel (end-to-end encryption).

Interestingly, Musk wants to raise the security level of its network to a very high level, thanks to the encryption at the network code level (firmware level). If an attack occurs, the network will be able to be updated in express mode and repel cyber attacks, offering its users maximum security.

A few months ago, Elona Muska applied to the FCC authorities for permission to use up to one million earth stations for the StarLink constellation. The terminals are to have flat transceiver antennas. Elona Muska revealed that the interest in the space Internet is enormous. The first customers will be able to enjoy the Internet from microsatellites this year.


First look at new technologies in Formula 1 cars in 2021

Formula 1 cars are the result of real craftsmanship of the development of the latest technologies in the world of motor sports, which has happened over the last decades. See what the future promises.

The FIA ​​is preparing great changes in the world of Formula 1, which are announced for 2021 free top web tutorials. Their goal is to significantly reduce the costs associated with racing, ensure better quality of racing on the track, higher safety for drivers and more efficient use of vehicle power.

The organization will present new guidelines on the principles of driver competition, as well as the aerodynamics of cars and their shapes. The FIA ​​has published on its YouTube channel video footage where we can see the prototype of one of the cars tested in the wind tunnel of all the well-known Sauber company in Switzerland.

Engineers are experimenting with various configurations of the front wing shape and aerodynamic spoilers. In 2021, the car will focus on significantly reducing the air fluctuations generated behind the cars moving at high speeds. The new aerodynamics of the cars are to allow drivers to better drive vehicles moving one after the other, and fans and spectators of F1 racing will provide a much more interesting experience.


Mysterious dark matter can be super-heavy gravitino particles

Dark matter has been sleeping scientists for decades. Although it occurs commonly in the Universe, we have not yet been able to detect the particles that make it up. But this may change soon.

At least such plans have German scientists from the Max Planck Institute streamingaudit. Their analysis of dark matter data obtained over the years and computer simulations allowed them to present a new candidate responsible for the essence of dark matter. The super-heavy gravitino is expected to have a mass of 0.02 milligrams, or as much as a flea egg. It doesn’t seem like much, but we are talking about particles here, which means that it is as much as 10 quintillions times more mass than the mass of a proton or neutron.

Gravitino is to be a unique particle of its kind, which not only interacts with ordinary matter by gravity, but also electromagnetically. Although this first assumption is nothing new, the second one is quite a bold move on the part of the Germans, because if the particle interacted electromagnetically with matter, we could find signs of it even on Earth.

Scientists intend to turn our planet into one large particle detector and use its 4.5 billion years of evolution and interaction with hypothetical particles to ultimately detect them. Gravitino particles, interacting with electromagnetic forces with ordinary matter, must leave traces of ionization, e.g. in rocks, as defects in crystalline structures. The ambitious goal set by the Germans will not be easy to achieve, but the latest technology advances should help in this. We keep our fingers crossed.


Festo presented the latest incarnation of its amazing robo-bird

Engineers from the German company Festo have been surprising the world for several years with their stunning designs slick tricks. They specialize in building robots that are deceptively similar to their living counterparts.

Festo presented one of its bionic works at the World Robot Congress in Beijing, China. Its engineers decided to create a robo-bird in 2011. The robo-seagull has been improved in recent years. From a distance, SmartBird is easily mistaken for a real creature, and this is because not only is it deceptively similar to it, but also very realistically moves in the air. The robot is extremely light, weighs only 400 grams, is able to start and fly in autonomous mode for several dozen minutes.

The Chinese announced some time ago that they would start installing Big Brother spy cameras in robo-animals, specifically in robo-birds. The idea is to take care of the appearance of the metropolises that change into one huge camera with each new year.


Here is AlienGo, the latest robo-dog straight from China and a great rival of SpotaMini

Chinese engineers do not want to lag behind American, Korean and Japanese in terms of robot development for special tasks. AlienGo is their new child. The machine impresses with its abilities.

Last year, Unitree Robotics presented its walking robot named LaikaGo, actually Łajka. As you can guess, he received it in honor of the famous dog, which flew on November 3, 1957 to Earth orbit on the Soviet satellite Sputnik 2. If you believe the Russians, it was the first dog placed in Earth orbit.

The robo-animal was tested in various conditions, was kicked, hit with various objects, and had to overcome several obstacles. Recently, the Chinese have even tempted to copy the idea of ​​the people of Boston Dynamics who created a team of their robots to pull a truck. The machines did very well in all the tests. Check more on technologi. Now the company has announced the construction of the successor to LaikaGo, which will become a tough competition for the famous robot called SpotMini from Boston Dynamics.

AlienGo, because it received such a name, is a machine with amazing capabilities. The robot is smaller and lighter than the SpotMini, but it is not inferior to its system of movement in even the most difficult terrain. For this it can work on batteries without interruption for up to 4 hours. Little is known about him yet. For now, you can see it on a short video material that appeared on the company’s official YouTube channel.

It’s no secret and no one should be surprised that the engineers in the design and construction of AlienGo were strongly inspired by SpotemMini from Boston Dynamics. You can even say that they copied it in large part, but this is standard in the Middle Kingdom. Unitree Robotics intends to start selling its robo dogs around the world this year.

LaikaGo robots can be bought for 45,000 dollars. For some time they have been hosted at all major technological events. However, they enjoy the greatest interest at universities and research centers, where they serve as the objects of various tests.


The massive black hole in the center of our galaxy has become 75 times brighter

This mysterious object is called Sagittarius A * and has been sleeping scientists for years. Unfortunately, we do not know much about him, and the recent registered phenomena associated with it, surprise us more and more with their power.

The black hole is about 25,000 light-years away and has a mass of 4.6 million times that of the Sun. These objects absorb unimaginable amounts of gas and matter. It makes their brightness change from time to time. However, astronomers who observe this object in the heart of the Milky Way have not yet expected how this could be a violent phenomenon. A few days ago, the black hole Sagittarius A * became 75 times brighter than usual for just 2 hours.

At first, the researchers downplayed the observation because they thought the increase in brightness was associated with the star S0-2. However, after deeper analysis, it turned out that most likely it was possible to record the absorption of a huge cloud of hydrogen in the event horizon. Astronomers intend to take a closer look at the acquired data to better understand this process. The problem is that this phenomenon has been considered unique. After analysis, however, it may turn out to be something natural, and we have not yet realized this fact.

Either way, the Sagittarius A *’s increase in brightness by up to 75 times than usual shows us how powerful and dynamic objects are black holes, and how little we know about them. It is worth adding that our black hole is not one of the largest in the Universe. Imagine what phenomena accompany the absorption of matter by such incredibly large objects found in other galaxies that we do not even know about.

On the subject of black holes, it’s worth mentioning that a few months ago, NASA published the first-ever image of this object, or rather the event horizon. The image was created on the basis of the Event Horyzont Telescope project and shows us a huge black hole located in the center of the galaxy Messier 87. You can see this amazing image above.

Amazon devices made in China with the illegal participation of children?

The American company decided to conduct an internal investigation to determine whether its subcontractor had actually violated the law while executing the contract for Alex’s voice assistant.

Recently, thanks to The Guardian, reports have appeared that Foxconn employed children in the production of equipment for Amazon and delegated them to work in violation of Chinese law, such as night shifts or overtime. And since the concern has a shameful story regarding the use of its employees and working conditions, this is not unbelievable, especially in the face of the trade war with the US, which could have led it to try to meet orders, even at the price of breaking labor law.

This information was obtained through talks with employees and document leaks that paint a very unpleasant picture of the Foxconn factory in Hengyang. 1,500 “interns” are to be employed there, aged 16-18, which in itself is not a violation of the law, but employees at such a young age cannot work night shifts and overtime. What’s the worst of all, the company paid schools for sending their students to their factory, and the teachers were to “encourage” them with easier passing from class to class.

According to some students, teachers assured them that they would work 8 hours a day, five days a week, but these quickly turned into 10 and even 12 hours, when orders began to pile up. What’s more, students spent 6 people in a single room and assembled an average of 60,000 devices a month to earn about $ 250. Foxconn is reportedly already looking into the matter, blaming local managers, but Amazon, who is risking his good name here, decided to investigate the subject himself, sending additional specialists to the site.

Is anyone else surprised? The sad truth is that probably not, because it’s not the first time we hear about using children to work beyond their strength and at terrible rates. Suffice it to recall 2017, when we learned that students worked after hours, just to be on time with orders for iPhone X for Apple. Amazon itself is also a bit behind the ears, because it is often said that it pays too little attention to the working conditions offered by its suppliers – is this time something going to change? It is difficult to judge, but hopefully yes.

See in action a flying car from the Country of Cherry Blossoms from NEC

The Japanese have recently started to seriously stand out from the rest of Asia in building innovative technologies. Now Koreans and Chinese are in the lead. NEC’s latest invention is the best example.

Designed and built by engineers, a flying car looks quite makeshift. Although the Japanese emphasize that this is only a prototype and is currently in the preliminary testing phase, but looking at it from the perspective of competition in the world of flying vehicles, it can be safely said that it is a pile of scrap metal.

South Korean and Chinese companies already have several such inventions, and they are almost ready for production and mass sale. Meanwhile, the Japanese from the NEC company just carried out a test in which their vehicle with the graceful name EVtol rose just a few meters, while its design vibrated as if it was about to fall apart.

We remind you that the government of the Country of Cherry Blossoms announced that already next year, during the opening ceremony of the Summer Olympics in Tokyo will present a futuristic flying car. Many local companies, including NEC, are working on it together. Apparently, during the flight it is supposed to use magnetic levitation technology.

Let’s all hope and keep our fingers crossed that the Japanese have an ace up their sleeve, and the funny EVtol vehicle was only a research object on the basis of which engineers will gain valuable information for the implementation of this great undertaking. Let this filth disappear as soon as it appears.

This is what the freight version of the Dream Chaser mini-shuttle will look like

Soon, manned space missions to the International Space Station will be held not only by Boeing, Lockheed Martin and SpaceX capsules, but also an interesting looking mini-shuttle from Sierra Nevada.

Representatives of the company showed in June this year, how beautifully works the vehicle engine called Vortex. Engineers boast that the engine functions phenomenally, and at the same time it is cheap to produce and will serve the mini-shuttle for many years. Dream Chaser will not be flying into space thanks to its own drive. Similarly to the case of previously used shuttles, it will be carried into orbit at a certain height on the top of the rocket. The vehicle will then detach from the rocket and use the engine to move towards the space house.

The mini-shuttle has been adapted to all types of rockets, so each company will be able to carry out its mission. The vehicle will be coming back to Earth from space on its own. Takeoffs and landings will be made from Cape Canaveral, Florida. The first flight is planned for next year. Then the world of the private sector of the US space industry will reach another important milestone on the road to independence from the rest of the world.

Sierra Nevada provides for the commissioning of two versions of the Dream Chaser, one for the crew, and the other only for the transport of goods. From the outside, the machines will be different from each other. The manned version is to have windows through which astronauts will be able to observe the entire course of the mission, while the cargo will be windowless, and instead there will be thermal protection plates.

Interestingly, NASA and the UN anticipate the construction of another version of the vehicle. It will be adapted to carry out various experiments on Earth’s orbit. Both the commodity and experimental versions will have a set of two folding solar panel systems and detachable motors. Unfortunately, after completing the mission, they will become space debris, until it burns in the atmosphere. Apparently, the company calculated that it would make a lot of savings in this way.

The UN plans to get financing for the lease of the Dream Chaser mini-space shuttle from the Sierra Nevada Corporation (SNC), which will allow such experiments to be carried out in space. The launch of the vehicle with various tests from many countries is planned for 2021. Sierra Nevada has already won a contract for the supply of raw materials to the ISS by 2024. Its vehicles can fly both with the crew and autonomously. According to the UN plan, the countries participating in the project will have to pay a fee for research, but they are not to be large amounts, because the organization will pay for them from their own and acquired funds.

Where to Watch Movies and TV Series Online for Free?

where to watch movies online

Stream and watch movies online for free

Watching TV at its best: Who wants to spend a nice evening alone or with friends, likes to watch a movie. The online video library allows you without waiting for e.g. Watch action movies, dramas, horror films or comedies on your PC or TV or download them to your mobile phone – in many cases also razor-sharp in HD. The best classics and almost all new releases are available to you – often for download and as OV (original version). Don’t wait to watch the broadcast in television! Plan your TV evening now individually. On the vipmovies, you can watch movies for free. Watch movies without costs!

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Who does not know that? On television, only programs that are already known are on the program again. Or the current television program does not meet the own ideas of an interesting feature film evening. Just when you have time, there are no good movies on TV. That sounds familiar? Do not despair, because there is a good alternative to TV: watch movies online. Various Internet portals invite you to watch your favorite movies at any time directly on the PC or on your own TV. Often, a few clicks are enough to see your chosen favorite movie. The time of day does not matter, all films are playable around the clock without much effort.

The selection on the Internet is huge.

Each genre is represented, several thousand feature films are available. Series, children’s programs and documentaries are also available online at any time. Which video on demand portal one chooses also does not matter. The procedure is the same for everyone: visit the website and right away you can choose among a variety of films, series and other videos. There are no limits to personal taste.
The arduous way with public transport or with your own car to the next video library saves you in any case and the selection on the Internet is anyway much larger. You can not do a movie night or a movie afternoon more comfortably. Not only does it have to do with comfort if you choose to stream movies. In the meantime, Video on Demand has become a real alternative to television and the opportunity to watch the movies you want right at home. It’s worth a try.