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Old February 23rd 18, 02:08 AM posted to sci.astro.amateur
Razzmatazz
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Default NASA's biggest worry right now: What if something goes wrongwith the Webb telescope?

On Wednesday, February 21, 2018 at 10:17:04 AM UTC-6, Chris L Peterson wrote:
On Wed, 21 Feb 2018 07:58:22 -0800 (PST), Quadibloc
wrote:

On Tuesday, February 20, 2018 at 9:54:26 AM UTC-7, Jibini Kula Tumbili Kujisalimisha wrote:

That's what required if you want to transfer energy into an electric
car as fast as a gasoline pump can.


It's possible that the rate at which a gasoline pump transfers energy is not the
minimum rate of energy transfer that is necessary. If one could put the
electrical equivalent of a full tank of gas into an electric car in, say, half
an hour, that might be workable.


And in the vast majority of cases, there is no need to "fill the
tank". The way battery charging works, you can add a large charge in a
short time, just not a full charge. There are already high capacity
battery systems like those used for cars which can receive a 30%
charge in just a few minutes. That is probably sufficient for the
majority of users the majority of the time.

Of course, that means a need for many more chargers than there are gas pumps.


But chargers are a considerably more straightforward technology to
provide. No massive holes with tanks, minimal environmental concerns,
not need for a separate liquid delivery infrastructure for support.


For those who wish to learn more about electric cars, how to use them effectively, how to charge them, and other interesting facts, here are 4 short videos (won't take much of your time):
https://insideevs.com/guide-to-elect...harged-videos/

Razzy