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NNTP-Posting-Date: Fri, 17 May 2024 21:15:39 +0000
From: Joe Gwinn <joegwinn@comcast.net>
Newsgroups: sci.electronics.design
Subject: Re: Copper can't be mined fast enough to electrify the US
Date: Fri, 17 May 2024 17:15:38 -0400
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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.  (Not to mention dealing with the possibility of
burning the house down.)  So far, they have all gone with hybrids.

Pure BEVs can make sense for local delivery vans; this was the
original use, in the days of Edison.

Joe Gwinn