Mechanical Engineer Answers Car Questions From Twitter | Tech Support | WIRED



Mechanical engineer and Stanford professor Chris Gerdes answers the internet’s automotive questions. Why aren’t solar powered …

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21 thoughts on “Mechanical Engineer Answers Car Questions From Twitter | Tech Support | WIRED

  1. Does anyone know, how autonomous cars determine grip? You have to adjust your driving style whether you drive on tarmac or ice. And you don't know how much grip you have until you start losing it. Any ideas?

  2. Regarding Hydrogen vs. Electric trucks. Building capable chargers is a way smaller task than building a hydrogen infrastructure. In fact, European truck charging infrastructure is already starting to provide megawatt charging (IIRC top is around 1.2 Gigawatt), while trucks come with battery sizes of 600 to 1000 MWh. A 1 MWh truck can charge in less than 45 Minutes to full and drive a good 1000+ km. So technology has closed the gap already. Charging can happen within a regular break time after a distance when a trucker has to stop anyway. Hydrogen simply can't deliver. The advantage of existing electric infrastructure makes all the difference.

  3. The Ev's are a bit disgusting imo. I'll just stick with the petrol cars, I care for the environment though, that means if I can install something to make the car less gas consuming, I'm all in.

  4. I've owned and loved both, but there is zero chance that the majority of 1970s cars were more reliable than 2020s. Every one of my old cars were in constant need of attention and maintenance. My modern Toyotas have needed literally nothing but oil, tires, and $35,000 worth of fuel over the past several years and several hundred thousand miles.

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