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From: Bill Sloman <bill.sloman@ieee.org>
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
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On 18/05/2024 7:15 am, Joe Gwinn wrote:
> On Fri, 17 May 2024 09:36:37 -0700, John Larkin
> <jjSNIPlarkin@highNONOlandtechnology.com> wrote:
> 
>> On Fri, 17 May 2024 05:04:00 GMT, Jan Panteltje <alien@comet.invalid>
>> 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