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Well, considering current events…


The Tesla HEPA Filter and Bioweapon Defense Mode have repeatedly proven their usefulness and even vital necessity. At the moment, only Model S and Model X have the air-cleaning feature, however, there is a high probability that the HEPA filter will be installed in Model Y.

Hacker @greentheonly/Twitter has once again noticed several updates that should be made available to Model Y. He claims that the car will receive a HEPA filter and the corresponding Bioweapon Defense Mode. He also clarified that Model 3 most likely won’t receive it at this point.

ModelY gets the 3rd row “flat fold”. It also got HEPA filter and corresponding biohazard mode — this apparently is not planned for model3 at this time. Standard/Adaptive air suspension made reappearance on 3/Y so it’s also certainly in the works.— green (@greentheonly) October 22, 2020

Ivan Smirnov, Leading Research Fellow of the Laboratory of Computational Social Sciences at the Institute of Education of HSE University, has created a computer model that can distinguish high academic achievers from lower ones based on their social media posts. The prediction model uses a mathematical textual analysis that registers users’ vocabulary (its range and the semantic fields from which concepts are taken), characters and symbols, post length, and word length.

Every word has its own rating (a kind of IQ). Scientific and cultural topics, English words, and words and posts that are longer in length rank highly and serve as indicators of good academic performance. An abundance of emojis, words or whole phrases written in capital letters, and vocabulary related to horoscopes, driving, and military service indicate lower grades in school. At the same time, posts can be quite short—even tweets are quite informative. The study was supported by a grant from the Russian Science Foundation (RSF), and an article detailing the study’s results was published in EPJ Data Science.

Foreign studies have long shown that users’ social media behavior—their posts, comments, likes, profile features, user pics, and photos—can be used to paint a comprehensive portrait of them. A person’s social media behavior can be analyzed to determine their lifestyle, personal qualities, individual characteristics, and even their mental health status. It is also very easy to determine a person’s socio-demographic characteristics, including their age, gender, race, and income. This is where profile pictures, Twitter hashtags, and Facebook posts come in.

Circa 2019


NASA’s X-Plane Program has been around for 70 years. Over the course of those decades, the agency has developed a series of airplanes and rockets to test out various technologies and design advances. Now NASA has cleared the newest one, the X-59, for final assembly.

The X-59 is a supersonic aircraft design. Its full name is the X-59 Quiet SuperSonic Technology (QueSST) aircraft. Rather than pushing for greater speeds or higher altitudes like some previous X-Plane’s, the X-59 is designed to break the sound barrier without the sonic boom. The X-59 will produce no more than a loud thump, if anything at all, when it passes the sound barrier.

Preliminary design for the X-59 began in February 2016. NASA wanted to develop a supersonic aircraft that eliminated the sonic boom. Supersonic aircraft have been around for a while, and have served as commercial airline aircraft. The Concorde was in service until 2003, but the tell-tale sonic boom that the Concorde created is problematic: the Concorde was only allowed on ocean-crossing flights as the noise was too much for populated areas.

This craft uses laminar flow 😃


Aviation startup Boom Supersonic has unveiled a fully assembled version of its demonstrator aircraft, taking an important step forward in its efforts to build the world’s fastest airliner. The company’s XB-1 is a sleek, one-third-scale prototype of its Overture passenger plane, and is designed to break the sound barrier itself with test flights due to kick off next year.

Boom Supersonic is one of a number of aviation companies working to make supersonic air travel a part of the civilian transport mix, with Virgin Galactic, Aerion and Spike Aerospace all sharing similar visions. The startup only emerged in 2016, with the lofty ambition of one day flying passengers from London to New York in 3.6 hours on a US$5,000 return ticket.

Austrian company Cyclotech is planning to begin flight-testing an 80-kg (176-lb) demonstrator of its unique electric VTOL airframe, which uses Voith-Schneider propellers instead of rotors for exceptional agility and control in the air.

The prop design, which looks a bit like it belongs on the back of an 1850s paddle steamer, was patented nearly 100 years ago but hasn’t made it into a production aircraft yet. Each prop is a spinning cylinder whose walls are formed by a number of wing blades.

The secret to the agility of this “Cyclogyro” arrangement is analogous to the way helicopter blades work, continuously altering the angle of the blades as they spin to adjust and direct lift using a “swashplate.” In the Cyclogyro arrangement, a mechanical linkage – conrods connected to a central hub – is able to tilt and angle the wing blades as they spin around the cylinder, tilting them gradually into the wind as they reach a certain point in their rotation, and then gradually back to flat as they pass the peak point.