A jet fighter that could affect the fate of World War II
In more than 100 years of aviation history, several innovations were real milestones that totally changed the image of aviation. One such example is without doubt introducing a jet engine. Messerschmitt Me 262 was the first combat aircraft used in this type of propulsion. A machine to help Hitler win World War II.
The early beginnings of jet technology
Contrary to popular opinion, jet engines were created relatively soon after the first Wright brothers plane crashed into the air. The first type of construction that can be classified as a full fledged jet engine is the work of English builder Sir Frank Whittle. In 1930 he designed and patented the first jet engine, initially designated as WU, and then W.1. This extremely simple from today’s perspective, the design with centrifugal compressor for its first flight onboard the Gloster E.28 / 39 jet had to wait more than 10 years. Faster, as already in August 1939, his first flight was made German experimental aircraft Heinkel He 178. It became the first jet aircraft in the world. Thus the German engineers overrun their English rivals. And real development of this type of construction was supposed to come only in times of World War II.
Messerschmitt Me-262 – how was the first mass-produced jet fighter of the world?
The experience gained during the design and flight study of He 178 was later added to the design of the Messerschmitt Me 262. Conceptual work on this plane began in 1938. The first hull pattern was presented a year later. After obtaining approval of the authorities of the Third Reich, the construction and testing of the first flight was commenced. The delay in the parallel-to-air engines of the Me-262 resulted in the Messerschmitt’s self-propelled fleets having flown with a 700 hp piston-type engine. Only jet engines powered by jet engines had to wait until July 1942. Junkers engines with the designation Jumo 004 were compliant with this version (previously the BMW gas turbines were abandoned due to their serious failure).
This innovative design still needed nearly a year to be fully ready for mass production. During this time, it was tested and tested on the fly. This process lasted for an additional six months, when unexpectedly Hitler ordered a change of concept and the fighter-bomber Me-262 was …
Chinese hackers have stolen confidential US anti-missile data
Data on US missile defense systems have been stolen by Chinese hackers – the Washington Post reported Tuesday. In Australia, the media report similar cyberattacks. Stolen data is important for the security of both countries.
Cyberslides have managed to steal secret construction plans or their elements, America’s most technologically advanced US missile defense systems Patriot PAC-3, THAAD, or Aegis, according to the Pentagon’s expert report, citing “WP”.
Data on F-35 and F / A-18 fighter jets, the V-22 Osprey multi-purpose vertical launch and landing aircraft, and the Black Hawk helicopter were also stolen, the Washington daily said.
Experts warn that such data obtained by Chinese intelligence can give you a colossal strategic advantage and at the same time undermine the US military superiority in the event of armed conflict.
High-ranking Pentagon officers who commented anonymously report that the acquisition of anti-missile defense data is part of Beijing’s extensive and intensified spying on not only American military structures but also Pentecostal civilian companies such as Boeing, Lockheed Martin, Raytheon and Northrop Grumman – writes “WP”. The newspaper adds that none of the companies commented on the report, stating that some of the information was stolen from their computer systems.
Hackers treat private companies working for the Pentagon as a weak link in the security system. “In many cases, these companies do not know they have been attacked by hackers until the FBI has knocked on their doors,” he said in a high-profile Washington Post interview.
In Australia ABC television reported Monday that Chinese hackers have stolen confidential plans to build a future Australian intelligence headquarters. On Tuesday the authorities refused to comment on this information, but they were not denied.
As explained by ABC’s cyber-security expert Des Ball, the acquisition of future intelligence headquarters plans, including details such as computer network information, makes the building exceptionally vulnerable to cyber-bullying or spy surveillance.…
VirnetX wants Apple to make more money
Apple has been involved in patent infringement lawsuits against companies for years, but it is not itself against the use of technology owned by various companies. One company that has long struggled in court with US corporations is VirnetX, which is asking for millions more from it.
VirnetX has been filing with Apple since 2011, accusing the company of illegally using many of its technologies and is not groundless as it draws hundreds of millions of dollars in compensation from Cupertino. In 2012, Apple paid $ 368 million for patents related to VPN technology, and this year, VirnetX received $ 625 million in damages for infringing patents related to FaceTime technology.
These gigantic compensation apparently are not enough for the VirnetX boss, because the company is again demanding money from Apple. This time, the amount of claims is $ 190 million, and the case applies to FaceTime and iMessages.
The next process can be extremely painful for Apple, as VirnetX claims not only damages, but also the prohibition of using products that use conflicting technologies. If the court agrees, this will mean that Apple will be forced to give up its two flagship products that have been used in every US device.…
Britons slim the rims
In sports cars, the key factor is performance, so designers are trying to lower it in all available ways so that the car can drive even faster. The British company BAC, together with Dymag, decided to take a few extra pounds off the rim, an inherent component of each car.
The enemy of racing cars is mass, because every kilogram you need to put on the move and stop, and the more they have, the more power they need. When constructing high-performance cars, unnecessary components are thrown away and lightweight composites are used to lower the weight.
Quite a few pounds in the rims, so Ford announced recently that his Shelby GT350R model will be equipped with carbon fiber wheels. The American giant is not the only company that goes in that direction and the same idea came from the British company BAC. The problem is that the carbon fiber rims are extremely expensive, so the British have developed hybrid wheels that are slightly cheaper, and at the same time 20% lighter than standard aluminum alloy wheels.
BAC wheels are therefore not made entirely of carbon but of aluminum, and of carbon fiber formed rims. Thanks to that, the 17 “wheels in size 7.5 x 17″ for the front axle weigh only 5.7 kg each, which is 23% less than traditional wheels. In the case of the rim, on the rear axle size 9 x 17 “, the weight savings are slightly larger and amount to 6 kg per piece. For even greater weight reduction, titanium screws were used, each weighing 30.2 grams, allowing each wheel to save another 212.5 grams.…
Wireless 3D in HD
HP launches a device called HP Wireless TV Connect, a wireless signal transmitter, which can transmit a 2D or 3D signal via radio to our television.
People who would like to use a computer as a movie player and have a TV in a second room and do not want to pull long cables may have a different solution. HP’s recently introduced HP Wireless TV Connect.
This is a wireless signal transmitter from a PC, connected to a TV via HDMI. This way you can broadcast 1080p signals in 2D or 3D and broadcast it from your computer to watch on our large TV without any visible delays.…
The winning photo of the World Press Photo 2013 competition has been redone or not?
If you look at the picture that won this year’s prestigious World Press Photo competition you had the impression that something was seriously wrong with him, you were right. Indeed photography was retouched in Photoshop. Is the degree of its reworking a serious shadow on credibility?
The author of this photo is Paul Hanen, who claimed to have been made on 20 November last year in Gaza, when Israeli troops responded to the attack by the Palestinians. The photo shows two victims of the attack carried to a funeral.
Looking at this picture, however, it is possible to get the impression that it has been retouched because it is unnatural. The service proves that the photo actually consists of three overlapping photos, which in addition have been redesigned in Photoshop.
After careful analysis of the file, unnatural lighting was observed, which would not have been possible under normal conditions, and no artificial lighting was used. Shadows also do not work as they should, taking into account the time of shooting and the position of the sun.
It is said that the photo could be taken in serial mode, then some of them were combined and retouched. Of course, the situation presented in the photo took place, but the photograph itself was purposely redone, which in the case of World Press Photo competition is unacceptable.
The photographer denied that he manipulated the awarded work.…
ESA is planning a manned moon journey by 2020
Plans of space conquest, which have been put on the shelf for many years, are beginning to be realized again. The European Space Agency has just announced its latest project, which is sending people to the moon. It will be implemented jointly with international partners, and the goal is scheduled for 2020.
After a long break, the man will reappear on the moon. The European Space Agency has just announced a plan to send man to the surface of the Silver Globe and is planning to do so by 2020.
The project will be implemented in cooperation with international partners and is to consist of a series of manned missions to be sent to the Moon at the end of this decade. Of course, before a human again (or as some claim – for the first time) will set foot on the surface of the Earth’s satellite, there will first be sent robots, which will work to slash the trail and supplement the scientific data of this celestial body.
ESA plans to send mechanical explorers there and devices such as rovers, telephones, and hybrid equipment. Some of them will be used to collect samples on the surface of the planet, while others will help astronauts when they reach their destination.…
New Virgin Galactic ship tested
The Virgin Galactic consortium, led by Richard Branson, has just conducted the first VSS Unity test, also known as SpaceShipTwo. The test ended successfully.
Virgin Galactic found that the construction of aircraft was not easy. In 2014, during the test of the SpaceShipTwo ship, he suffered a crash during which his crew died. For the consortium, it was undoubtedly a huge blow that undermined trust in the company and caused retreating customers willing to pay gigantic money for the opportunity to travel to orbit.
Richard Branson did not surrender after this tragic event, and his engineers immediately began designing a new version of SpaceShipTwo. The ship called VSS Unity has just made its first flight. The test lasted only 10 minutes, and during the flight the machine did not accelerate above Mach 6, soaring at 15 km. However, engineers were sufficient to gather data showing how the ship behaves under real conditions.…
Photovoltaic cell as light as a feather
The world is increasingly willing to switch to renewable energy sources, and photovoltaic cells are the most common way to produce them. In the near future, it will be even more popular, thanks to a new type of cell developed by MIT engineers.
Fossil fuel resources are shrinking rapidly, so individual countries are investing more and more money in the production of renewable energy, water, wind and sunlight. The most popular method is the latter, but the technology of photovoltaic cells leaves much to be desired and there is plenty of room for innovation.
One of such innovations was demonstrated by MIT engineers and can contribute to the development of mobile devices, various types of electronic sensors, They have succeeded in creating a photovoltaic cell that is thin, flexible and extremely light, so that they can be placed practically on any surface. To show how much this cell is lightweight, the experiment was put on a regular soap bubble without destroying it.…
Service to spoil your favorite show
If you want to get revenge on a not-so-pleasant co-worker, schoolmate, or neighbor who is an avid fan of the Tron series, now you have the opportunity to do so. This is because a special site has been set up to reveal spoilers of the latest episodes by sending them an SMS.
Nobody likes it when someone tells the story of the episode of a favorite series or the latest movie and there are even suggestions for such action to be considered offenses – such an idea is reportedly being considered in Italy. For now, however, these are just plans, but meanwhile, a website named, which with the help of the spoiler of the latest episode of Games Tron, allows to annoy the fan of the show.
In other words, it’s enough to just give him a phone number of that person, and a spoiler will be posted to it telling the plot of the next episode. This is undoubtedly a very cruel action if a friend is a big fan of the show.
The whole revenge is completely anonymous, so the person we do not like will not know who cut that number. However, it is not free, as every such message costs $ 0.99.…