Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Bill Sloman Newsgroups: sci.electronics.design Subject: Re: Copper can't be mined fast enough to electrify the US Date: Sat, 18 May 2024 16:11:23 +1000 Organization: A noiseless patient Spider Lines: 84 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Sat, 18 May 2024 08:11:37 +0200 (CEST) Injection-Info: dont-email.me; posting-host="8c9b35e36545cc12300428201b91ce18"; logging-data="2803354"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18pMSQS5lbH8hgLuqSWi8JGhmA89M9eFBA=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:QAn7Mf37B/T7+as/5JGN9IkJ2So= Content-Language: en-US In-Reply-To: Bytes: 3872 On 18/05/2024 7:15 am, Joe Gwinn wrote: > On Fri, 17 May 2024 09:36:37 -0700, John Larkin > wrote: > >> On Fri, 17 May 2024 05:04:00 GMT, Jan Panteltje >> wrote: >> >>> Copper can't be mined fast enough to electrify the US >>> https://www.sciencedaily.com/releases/2024/05/240515164309.htm >>> Source: >>> University of Michigan >>> Summary: >>> Copper cannot be mined quickly enough to keep up with current U.S. policy guidelines >>> to transition the country's electricity and vehicle infrastructure to renewable energy, >>> according to a new study. >>> >>> OK, alternatives: >>> https://en.wikipedia.org/wiki/Wind-powered_vehicle >>> ? >>> >> >> At least it dosn't need air conditioning. >> >> Car power, worst to best, roughly: >> >> Rubber bands. >> Springs. >> Animals (humans included). >> Sails. >> Compressed gas. >> Steam engines. >> Solar cells. >> Batteries. >> Electric trolleys. >> Cable cars. >> Funiculars. >> Fuel cells. >> Gasoline turbines. >> Coal dust turbines. >> Hydrogen turbines. >> Gasoline piston engines. >> >> Did I miss any? > > Vacuum on one side of a tunnel, air on the other side, car in middle. > > Linear electric motor with stator in roadbed and "rotor" in the car. > Often combined with magnetic levitation ion a monorail setup. > > Stretching the definition of Car, big rockets powered by burning > liquid Methane and liquid Oxygen? > > >> The battery thing may have peaked. Manufacturers are leasing underused >> parking lots and airports to store unsold cars. > > Yes. Hybrids are what will survive, if anything Various friends have > asked me about EVs, and I always warn them away from pure BEVs, > because with a BEV one spends far too much time dealing with keeping > it charged up. Which is a problem that is going to go away as they get more popular. Gasoline powered cars are going to get harder to fuel as their population declines, > (Not to mention dealing with the possibility of > burning the house down.) So far, they have all gone with hybrids. Foolish. Electric cars catch on fire less often that gasoline-powered cars. The "burning the house down" problem is one that they already have, but the media isn't as enthusiastic about reporting domestic fires started by internal combustion-engine cars as they are about reporting fires started by lithium ion batteries. > Pure BEVs can make sense for local delivery vans; this was the > original use, in the days of Edison. And the days of much lower capacity batteries. The technology has moved on a bit since then - you need to pay closer attention. -- Bill Sloman, Sydney