#news high technology 260 | Russian engine on alcohol and reforms Google

Every Monday in the new issue of "News of high technologies" we summarize the results of the last week, talking about some of the most important events, the key discoveries and inventions. Today — of Russian engine on alcohol, accidents «Union» and much more. Below the news you can find in a text format.

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What caused problems with the integrity of the ISS

The Hole in the hull of a spacecraft "Union" could appear at the stage of Assembly of the spacecraft. A formal report on the results of the inspection are planned to be presented in mid-September, but some sources have already reported that the reason for the depressurization of the "Union" was the hole from the drill, which could appear in the shop of the General Assembly of the ships in the suburban Queen, and not on Baikonur or in space.

According to another source, some staff of the Assembly Department knew about the manufacturing defect because "the work was carried out to eliminate it, still on the Ground in the Assembly". The source also explained that at the last stage of Assembly of the apparatus when the Soyuz was already almost fully stocked with equipment, the hole was sealed with a special glue. Also mentioned was the inability to cut a hole in the "Union" at the cosmodrome.

Leakage of oxygen on the Russian segment of the International space station was discovered by astronauts on August 30. The Russian crew noted a decrease in the pressure. After some time was discovered and the cause of the incident. It turned out that in the inner hull of a ship "Soyuz MS-09" has "hairline fracture". The astronauts took measures for emergency repair station, and close up the hole with epoxy resins and then additionally coated the fracture sealing for reliability.

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In Russia has developed a new engine for nanosatellites

Russia has developed a new engine for nanosatellites. The developers of the prototype propulsion system in a mixture of distilled water and ethyl alcohol are the engineers of the Samara University. The choice of such a working body of the Russian University scientists explain that water has small molecular weight, which allows to obtain high velocity of the steam, and the addition of a mixture of alcohol, in turn, allows to prevent the fuel freezing at low temperatures in earth orbit.

Before the fuel mixture enters the nozzle, it evaporates with the help of electric heater. The resulting evaporation steam heated to the desired temperature of the same heater. The ratio of water and alcohol is 60 to 40%. According to the developers, this mixture is safe because it does not contain combustible components. In addition, it is non-toxic, therefore not harmful to the environment. Maximum mass of the fully fueled new propulsion system is of the order of 1.55 kg. the Expected total impulse speed — 80 m/s.

The New development will significantly broaden the capabilities of the compact spacecraft. With the help of nano-satellites to solve the most different tasks. For example, they can be used to study the ionosphere of the Earth, to collect data for analysis of the likelihood of natural disasters, to monitor the asteroids, and also to inspect other spacecraft in earth orbit.

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Reform from Google

Google Engineers are going to arrange another reform on the Internet. The Google Chrome browser already eradicates the HTTP Protocol, marking using his sites as unsafe and forcing administrators to move to HTTPS encryption. According to Wired, before the end of the second half of 2019, the company will come up with a replacement for the standard URL.

The Company believes that it invented in 1990, way to go on the websites is outdated. With the development of the Internet, the URLS are longer, so users do not always see the address of the site completely. This could allow attackers to lure them to malicious sites, for example, changing the domain .com .biz. The victim may not notice the difference and lose important data.

"We want to come to what each user will be sure of the authenticity of the sites visited. The changes will affect how Google Chrome will display URL — talking to Google."

What will be used to navigate to sites — is still unknown. The company's engineers think about this for a few years and still have not come to a consensus. In 2014, the beta version of Chrome showed only the domain name of the website and the full URL was revealed only after clicking on the address bar. The experiment received the same ratio of positive and negative reviews, so the company froze him.

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Autonomous drone for the first time crossed the Atlantic

A Device, resembling a small surfboard with a few solar panels and a rigid sail, was launched from the island of Newfoundland (USA) the staff of the Maritime Institute of the United States June 7, 2018, and, having overcome a distance of 3000 miles, reached the coast of Ireland on August 26.

Last year, another apparatus Sailbuoy Wave of the same Norwegian company for two months in total covered a distance of about 4500 kilometers in the North Atlantic until he was caught fishing boat in working condition. The checking apparatus after his return home revealed that several dropped out of the plating of the bolts caused a shortcircuit in the autopilot system of an Autonomous ship, which did not allow to successfully complete the task.

In the company Offshore Sensing note that during the Atlantic crossing the ship encountered very different weather conditions from dead calm to these storms. The conquest of the Atlantic Autonomous courts is part of the Microtransat Challenge competition since 2010. For all the time it was attended by more than 200 vessels, but Sailbuoy was the first drone, which was subjected to the ocean.

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