http://crypto-news.in/

NASA and MIT decide to build new revolutionary aircraft

Experts at the US space agency NASA and the Massachusetts Institute of Technology (MIT) have jointly envisioned a revolutionary change in aircraft arm (wings) that radically altered the process of aircraft and flight. will make. According to research published in the journal Smart Materials, the aircraft's design will be combined with smaller cubic structures that are extremely strong and lightweight. Special pieces of polymer will be mounted on small pieces like jigsaw puzzles. Wings formed this way will be able to change their appearance and appearance as needed. We know that aerospace and speed are different when flying and landing on a plane, and in this regard, the new arm will adjust itself as needed to make the flight better and more efficient. As far as the usefulness of this concept is concerned, scientists from both companies have said that they have tested the technology of the arm on a small aircraft. This test yields the same results that were expected. On the other hand, there is also a complete method for the preparation of wings that make this concept closer to reality. Experts believe the same design can be used for space riders

The WhatsApp offers a solution for users' biggest problems

WhatsApp, the most popular messaging app, eases a long-standing consumer problem. In general, any WhatsApp user user group without the permission to add any users to whom users expressed strong disapproval and criticized the messaging app for being coerced into unknowing groups ۔ Now WhatsApp has offered a solution to this problem, in addition to improving admin control, WhatsApp gives the user the option to add or not to add groups, due to this new update Will need the user's permission to do so. If you also want to use this feature, click on 'Account' after going to WhatsApp 'Settings', click on 'Privacy' when a new window opens, on the new page you will be given three options. When you select 'No Boddy', no one will automatically be allowed to add you to the group. The other option is 'My Contact', whereby you can add users to the address book in the group while 'Everyone' 'The option will not require any permission from the use.

A drone in the air and a robot on the ground

A few months ago, there was a mention of a drone floating in the water and flying in the air, and now Israeli experts have created a drone that flies in one direction while flying on the other. It's a quadcopter-type drone, but as soon as it touches the ground, its propeller arms curl up and form wheels. It's named F-Star (Flying Sproll-tuned Autonomous Robot). Experts at Ben-Goreo University in Israel have successfully converted a four-propeller quadcopter into a car. The four horizontal propellers provide the power to lift it and the drone can fly easily in any direction. But there are also four rotating wheels mounted with propeller arms mounted on brush-equipped motors that propel the propeller to the wheels, and the car runs at a speed of eight feet a second. A practical demonstration of this can also be seen in the video below. As soon as it is on the ground, its propellers rotate at 55 degrees and form the wheels. Thus in the case of any obstacle, it moves forward and overcomes the small obstacles. Once charged, it remains active for up to 20 minutes and can be used in search and rescue operations after an accident. It can easily carry 400 kilograms of goods, medicine or food in debris and tight spaces. Several versions of drone robots are working for different applications. Professor David Zarok, an associate professor at Ben-Gurion University, says that the next step can be improved by improving programs and algorithms and improving their performance

Plastic fragments in the oceans are now becoming pollution bases

Fine pieces of plastic that are less than five millimeters in size are now billions of billions of beaches and oceans, and they are now carrying around pollution and disease-causing components from one place to another by humans and marine animals. Have become a serious threat to the world. Alexander Toura, an expert on the Oceanographic Institute at the Brazilian University of Sao Paulo, says that fine pieces of plastic have now become a foam for pollutants, organic compounds and other hazardous chemicals, in which they are absorbed at the tip of the wave. And are becoming a threat to marine life. These pieces of plastic come from old clothes, seams, plastic bags, tires and garbage dumped on the beaches. The mutual conflicts in the sea keep them divided into fine pieces, and now the news is that the harmful chemicals and compounds are spreading far and wide. Brazilian experts have deposited microplastics 39 km from the coast in southern Brazil. They found that the plastics also contained organic compounds, including polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs). The pollution is caused by the extraction and transport of oil into the oceans. Experts say that the pollution itself can severely affect the physical, nervous and hormone systems of humans and animals. Thus, pieces of plastic have now become floating sponges that can adversely affect marine life. The dangerous thing is that if creatures swallow them, they continue to move from one animal to another as part of their food chain, even through fish and shrimps. Experts say 80 million tons of plastic is being dumped into the oceans every year. This plastic is being transported to the oceans by the world's 10 largest river

Facebook discontinued its services for Huawei

Facebook also decided not to uninstall its apps in Huawei after Google suspended its business with Huawei. The ongoing trade tensions in the United States and China have taken a new turn, with the technology companies of the two countries ending trade agreements with each other after the US president blacklisted the Chinese mobile company Huawei. In this regard, the US company Facebook, a step forward, has banned Huawei from installing all its apps in the future, refusing to provide services to Huawei. Facebook will not provide Huawei with social media sites owned by Instagram and WhatsApp, though users who are using Huawei phones will continue to use Facebook and its other apps without interruption. Facebook has assured Huawei users that updates of all future updates will be made regularly. Huawei's company, on the other hand, did not respond to Facebook's move.

Dinosaurs were "birds" before birds, research

now, it was thought that most dinosaurs were almost bald, whereas there were very few types of hair and good luck dinosaurs. But after analyzing 25 million years of ancient ruckus (fossils) from China, experts say that flying "Tyrosar", including reptiles, used to do good on most dinosaurs' bodies. However, experts say the wings were not intended to help them fly, but they probably helped protect the dinosaurs from the harsh weather conditions. Other purposes of the wings such as flight, beauty and anti-gender matching would have appeared later. Interestingly, the genetic system for hair follicles is essentially the same on the bodies of reptiles, birds and birds, so there is a strong possibility that birds will be millions of years ago. But have come into existence. It should be noted that according to evolutionary theory till date, it is said that modern birds originated from dinosaurs. This discovery also supports the same view, and at the same time, suggests that birds existed long ago. This research was published in the latest issue of the research journal "Trends in Ecology and Evolution."