96

tl;dr: The claimed range is 50% higher than the worst assumptions for battery production, and 500% higher than the best assumptions. But it's not an apples to apples comparison. Carbon emissions from battery production The range of values estimated for emissions from battery production varies widely in the literature: In an answer on Sustainability.SE I ...


89

It's a PR stunt, and a very bad one at that. There are several debunkings out there, e.g. from ElecTrek, or (the best IMHO) from DÆrik @ YouTube. Strongest points made by DÆrik: The press release by PromoBot claims that the driver has "put the car in self-driving mode". Such a mode does not exist in available Tesla models. The Tesla "autopilot" would not ...


79

This is something of an urban myth - the drying time gains were made by using oven-dried enamel coatings on the parts that could withstand the required curing temperatures. The so-called "baked enamel" coating used by Ford was called "Japan Black" (produced for Ford by APV Engineered Coatings) - this is an asphalt-based enamel coating which is applied to ...


61

In addition to all the other great answers there is one very important fact that's always ignored in these comparisons (Google translation, lightly corrected by me): The total emissions of petrol and diesel are sugarcoated in this example. For oil extraction, refinery and transport on tankers, in pipelines and trucks 44 kWh of energy was used for ...


30

If I'd spent 30 seconds looking instead of 2 minutes posting here I'd have found the answer on Snopes. Its an old legend dating back to at least 1978. Origins: This legend surfaced in print in 1978, but an anecdotal sighting places it even earlier than that, in 1971. Though its exact beginnings can’t be pinpointed, according to Brunvand: The June ...


20

While I don't know if this particular company is doing something useful or not, I can talk about what an aluminum battery could be used for in electric cars. In general, electric cars use lithium ion batteries. The problem is that in order to get a decent range, you need a lot of batteries. From an engineering perspective, these batteries are heavy, which ...


18

There is no reason to doubt that Churchill explicitly mentioned Rolls-Royce in the context of the quote. A Google Books search limited to books published before 1960 returns at least four publications that feature the Churchill quote including the Rolls-Royce reference: Jackson, G. G. (1930). The world's aeroplanes and airships, p. 173. IPC Transport ...


17

IVL, the source of the 150 to 200 kilograms of CO2 figure, recently published a new study that ended up with a much lower estimate: 61-106kg per kWh of battery capacity, depending on the energy sources and efficiencies of different manufacturing plants. "[This] puts it much more in line with other studies."1 Reasons for the difference: The new study ...


16

Yes. In My Life and Work (1922) Ford wrote: Therefore in 1909 I announced one morning, without any previous warning, that in the future we were going to build only one model, that that model was going to be Model "T", that the chassis would be exactly the same for all cars and I remarked: "Any customer can have a car painted any color that he ...


13

The United States Department of Transportation, Bureau of Transportation Statistics (BTS) reports that there are 272,480,899 vehicles that are registered for for highway use as of 2017. An additional 63,759 mass transit buses are also registered. Given a population estimate of 327,167,434 as of July 1, 2018 of which 22.4% are below the age of 18, that gives ...


12

This is not intended as a complete answer, but we do know the inventor does exist and has made these claims. But the articles are misleading, especially the Daily Mail one using language like this: Imagine the satisfaction of driving your environmentally friendly electric car for 1,500 miles without having to stop to recharge the battery – a distance ...


9

More or less, yes. According to this source in the first 5 years model T's came in different colors- green, bright red, dark blue, brown, maroon and gray (this is supported by other sources as well) The model T came only in black from 1914 through 1925, and the article quotes a model T expert named Guy Zaninovich (this book mentions him as a model T ...


9

Does he exist and did he work for Mercedes Benz as a road safety expert? Yes Here's a picture of him from Cars Guide in 2010 Dr Ulrich Mellinghoff (pictured) heads all safety development for Mercedes-Benz. Did he present a recommendation to the government that a 140km/h speed limit would increase safety? Not really. His proposed changes involve ...


5

It would help to see the text of the interview, or at least a clear statement of the claim. Your phrasing "He claims that would have caused hundreds thousands of deaths (not clear, US or worldwide)." is ambiguous as to what "it" refers to, and you phrased it as a counterfactual (something that didn't happen), but if "it" refers to "The government taking ten ...


5

Is this video legitimate? This particular video appears to be a hoax: The video above is a joke that some people seem to not be getting. RIffing off the "you can put Doom on anything" meme, from graphing calculators to printers, YouTube user vexal put together this video showing the three simple steps to getting the classic first-person shooter running ...


4

Generally, every car has a specific speed where fuel efficiency (i.e. miles traveled per gallon) is highest. This is mostly around 40 - 60mph (~65 - 95 km/h). Above and below this speed fuel efficiency decreases. So if you travel the same distance, you will use more fuel and therefore produce more pollution. In this paper the authors use a pretty ...


3

The Question consists of three parts 1: Decline of insect populations. Is there any substantial and robust decline of insects in a large enough space and timespan to consider it a general decline? The overall abundance of butterfly species in Great Britain has declined by approx 70% in 20 years. http://science.sciencemag.org/content/303/5665/1879/tab-...


2

Obviously, my source is looking at headlights. However if one has internet access you can look it up. Wikipedia seemed to have the most info in one spot but additional info at other sites would be helpful . Lumens (L) are a measure of the amount of light. Old sealbeams = ?, early halogens = 1550 L later halogens =1820 L newest halogens = 2100 L HID = ...


1

No. There's the calculator from Finnish climate change panel at https://www.ilmastopaneeli.fi/autokalkulaattori/ Unfortunately, the calculator is in Finnish, but the tool has quite good defaults. The vehicle 1 is a gasoline powered car (Bensiini), and the second vehicle is a pure electric vehicle (Sähkö) with a battery size of 42.1 kWh. The life cycle ...


1

Edmunds.com conducted a test using a 2007 Toyota Tundra. Edmunds They found that at 65MPH, fuel mileage was 19.1MPG with the a/c on, 20.9MPG with the windows down and air off. Based on personal experience, I'd say that's pretty close to what you could expect across the board. Different makes/models will differ aerodynamically, but a 1-2MPG increase ...


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