4 ms·
Your post is pretty inaccurate. > actually the inefficiencies are spent on taxes rather than the engine itself. Incorrect - the efficiencies are to do with ba
by victorhooi 11y ago
Your post is pretty inaccurate.
> actually the inefficiencies are spent on taxes rather than the engine itself.
Incorrect - the efficiencies are to do with basic physics, and the laws of thermodynamics.
https://en.wikipedia.org/wiki/Engine_efficiency https://en.wikipedia.org/wiki/Engine_efficiency
"Modern gasoline engines have a maximum thermal efficiency of about 25% to 30% when used to power a car. In other words, even when the engine is operating at its point of maximum thermal efficiency, of the total heat energy released by the gasoline consumed, about 70-75% is rejected as heat without being turned into useful work, i.e. turning the crankshaft."
> its really hard to read through the extremely biased article. it literally admits airplanes are more inefficient but cars are worse because they are used more. That's a special kind of logic there.
Incorrect - what the article actually says is:
"Transportation is a principal cause of the global climate crisis, exacerbated by a stubborn attachment to archaic, wasteful, and inefficient transportation modes and machines. But are cars the true culprit? "
So we are talking about who contributes the most to global warming - and the answer, no matter how you look at it, is cars. Airplanes contribute around 8 percent - cars contribute some 83 percent.
> cars in many situations also save copius amounts of time. A trip to north east philly is about an hour and a half by mass transit, 25 minutes by car. time savings that would eclipse any theoretical 10 years of life expectancy loss from cars.
Incorrect - firstly, what exactly is the price of a life? I can tell you that to most people, if you told them, can I take 10 years off your life, you would hardly be met with joy. Secondly - this disparity you refer to isn't due to any inherent strength of cars - more, it's just to do with very poor investment in public transport in the US. If you journey outside the United States, to other lands, you will see what some good planning and smart investment in pubic transport can bring.
It's like saying, here are my two children - Alice and Bob. Alice is well fed and does sports every day after school. Bob is beaten and malnourished, and we keep him chained in the basement. Here, I'm going to race Alice and Bob - gosh, Alice can run fast!