what happens with an electric field when it did work on a charge?

[Dave45]

Sorry didnt mean to jack your thread.
it seems firing an electron into a cap would be like shooting pool in the dark 

[Creativity]

Weel,idea is not to pulse the cap.Because when u pulse it,u take charge from -plate and pump it to + plate untill polarity is changed.Then u do the opposite.In that case free electrons that escaped from the sharp end will be pushed back(on the expense of the energy put to pulse the cap). What i want is a steady stream of electrons without ever recharging the cap (at this stage i don't take surge of cap into account) or any other work done on it,just initial charging,that have to payback many times more.

Quartz is ok if u want to use UV(glass is not letting that much of it).Glass is just the first idea that i had,can be plastic as in tinu almost poetic answer

[Creativity]

on second thought half-pulsing can be usefull to recharge sharp electrode from missing electrones(backup plan for my other idea ).
First the cap is charged.All of the electrons that could escape from sharp electrode are gone and sharp electrode is positevely charged(netto value).If now cap charge is discharged to some external cap,the only positevely charged object(sharp electrode would regain its electrons from enviroment.We charge back the cap and cycle repeats.
It seems to be lot of loses here to pump charge from cap to cap anyway :|

[Creativity]

@tinu
u give up,never !  plastic was just a one of the pices i have brought with me from the black market in OU universe.It was a bargin i must say.I exchanged it for few dark chockolade bars...well, they were convinced it is the dense form of a dark matter we use to power our bodies.I couldn't say no.It's black,it's caloric and it matters for us on the blue planet.

I got bored with the plastic anyhow,
i can use some idea's though,
give me some of efield conservant,
and the plastic will be in ur hand.

[tinu]

@tinu
u give up,never ! 
...

True, I don’t give up easily. 
Well, I’m glad you’ve got the real message behind my previous ‘poetical’ answer, which was otherwise meant to be just funny but thanks for the compliment anyway.

(For the kind members reading here: Reduction ad absurdum http://en.wikipedia.org/wiki/Reductio_ad_absurdum could never got the humanity out of caves as it was way above the intellect of that era but certainly the genius of Greek culture [and Aristotle in particular] was accelerating our advancement at an incredible rate. It’s still one of the most powerful formal logic tools we have our days…)

As for the e-field conservant, I don’t have any but certainly you can successfully replace it with a local time freezer. 

It was a very nice talk and many thanks for the beauty of the posts we’ve exchanged!

Cheers,
Tinu