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Basic Continuously Variable Transmission explained with Legos

In recent years, the search for better fuel efficiency and smoother shifting has produced automatic transmissions with double-digit gears. Alternatively, the same quest has boosted the popularity and usage of a different type of automatic transmission without any fixed gears, the continuously variable transmission, or CVT. YouTuber Sariel's Lego Workshop recently took the time to build a CVT demonstration model out of Legos to help explain how they work. Sariel begins by showing the model's input and output shafts that are parallel to each other. Each shaft has a cone attached to it, and they are inversely placed so that the large part of one cone is next to the small part of the other cone. The two cones are connected using a rounded rubber band.  By shifting the rubber band up and down the cones, the machine changes the effective ratio between the cones. So, a 1:4 ratio can be smoothly transitioned to 4:1. No clutch is required to operate the mechanism, and it eliminates hitches or pauses between gear changes. CVTs are also advantageous over 9- or 10-speed automatics in that they are far less complex and weigh less.  To demonstrate how the CVT operates in a vehicle, Sariel used a joke about Top Gear. The original Top Gear is represented by a faster-moving car that has the rubber band around the large part of the cone on the input shaft. Top Gear without former hosts Richard Hammond, Jeremy Clarkson, and James May is represented by a slow-moving car with the rubber band around the large part of the cone on the output shaft.  For an even more detailed explanation of how CVTs work — albeit one that doesn't involve toys — you can click here. Technology Toys/Games Nissan Subaru

In case you forgot, the Dubai Police supercar fleet is the coolest

Ever wonder why the Dubai Police have a fleet of vehicles worth millions and millions and millions of dollars? Why it has a Bugatti Veyron and a Bentley Continental and a Mercedes-Benz SLS AMG with sirens and light bars? Well, here's the reason. This video shows the fleet on display on the Emirate's roads and highways, while also reaching out to the people the police are meant to protect. It's an impressive display of machinery, to be sure. Alongside the Bentley, Bugatti and Mercedes, we spy a Ferrari FF, a Brabus G-Wagen, a BMW M6, a Nissan GT-R, an Audi R8 and a McLaren MP4-12C (although the latest Dubai Police car, the Lexus RC F, is absent). The video even has a very cinematic look and feel to it, which works well with the night scenes and the blues-and-twos of the exotics cruisers. News Source: Dubai Police via YouTube Audi Bentley BMW Bugatti Ferrari McLaren Mercedes-Benz Nissan Luxury Performance Videos dubai ferrari ff mclaren 12c

Ghosn's lawyers say he's 'happy' after days of French questioning

BEIRUT — Ex-Nissan boss Carlos Ghosn has answered hundreds of questions by French investigators over the past week in Beirut and was “happy and satisfied” to have had the opportunity to explain himself over accusations of financial misconduct, his lawyers said Friday. The 4 1/2 days of questioning marked the first opportunity for Ghosn, a French national, to defend himself against the French allegations — including spending on lavish parties and private planes — since his 2018 bombshell arrest in Japan and escape to Lebanon a year later. However, as Ghosn was being interrogated outside of French soil, it was unclear how he could, if at all, be handed down preliminary charges. His lawyers said they will now seek the right to ask for witnesses and expert testimony in the French investigation. Earlier, the auto magnate-turned-fugitive told The Associated Press that he has done nothing wrong and hopes the investigations are eventually dropped. He didn't speak to reporters throughout the Beirut interrogation, which began on Monday. It is an unusual move for French magistrates to question a suspect abroad. Ghosn, who was given sanctuary by Lebanese authorities, grew up in Lebanon and also has Lebanese citizenship. Lebanon will not extradite him. He is Brazilian-born. Ghosn was questioned about the financing of parties he threw at the Versailles Palace as the head of the Renault-Nissan car alliance. The French investigators, in cooperation with Lebanese judicial authorities, were also examining 11 million euros in spending on private planes and events arranged by a Dutch holding company, and subsidies to a car dealership in Oman. “It was his opportunity to explain his positions,” said Jean Yves Le Borgne, a member of GhosnÂ’ defense team. “It has now happened and he is satisfied and happy.” “Still unresolved, of course, is the problem of the next step in this procedure,” Le Borgne added. Ghosn has not so far been charged with anything in France, but could be, given preliminary accusations of fraud, corruption, money laundering, misuse of company assets, or aggravated breach of trust. Whether Ghosn could be charged or not by the French, Carlos Abou Jaoude, his Beirut-based lawyer, said Lebanese and French authorities have to determine what GhosnÂ’s “status” will be. Ghosn is campaigning to clear his name against multiple legal challenges in France after Japanese accusations triggered scrutiny of his activities there.