05-29-2018, 09:45 PM | #1 |
Join Date: Jul 2017
Location: Michigan
|
Energy Spells & Electricity
Hey all,
I don't think I've asked this question, but my gaming group and I are wondering about the conversion of energy to mana. The magic book is somewhat helpful, but the conversions don't make much sense, and leave far more questions than it answers. Does anyone understand the conversion system well enough to give some notion of how to understand it (relatively simplistically)? Thanks in advance for any insights. |
05-29-2018, 10:21 PM | #2 |
Join Date: Sep 2007
|
Re: Energy Spells & Electricity
The standard conversion rates are listed in the intro to the Energy Spells section. (10 FP = 1 kWh; 1 FP = 360 KJ; 360 kW = 1 FP per second.)
Using those ratios requires that you have some idea of how much energy or power you have to tap form your source -- usually not too difficult in the case of electricity, but sometimes more obscure if you want to tap a waterwheel. Conduct Power and Draw Power are the main two spells involved, and their descriptions have a couple of examples and more text. "A form which could be directly used by a machine" is a bit vague, but the intent is really just that there's some machine-like apparatus in existence, so you're not just tapping latent heat or the kinetic energy of moving water / wind (or the planet) or forest fires or gravitational potential straight into FP. The source is supposed to be something to which you could attach some work-performing machine of the setting's TL instead of the wizard, not just any collection of energy in the physics sense. There's not really a good way to precisely define that concept, so it becomes a GM judgement call. What questions did you have, exactly? |
05-29-2018, 10:46 PM | #3 | |
Join Date: Jun 2005
Location: Lawrence, KS
|
Re: Energy Spells & Electricity
Quote:
In terms of electricity, 360 kW is the power of a fairly large industrial plant. Typical household wiring apparently runs around 15 amps, and at 120 volts that gives you 1.8 kW, or 1/200 of an FP per second.
__________________
Bill Stoddard I don't think we're in Oz any more. |
|
05-30-2018, 01:47 AM | #4 | ||
Join Date: Jul 2017
Location: Michigan
|
Re: Energy Spells & Electricity
Quote:
Quote:
|
||
05-30-2018, 02:07 PM | #5 | |
Join Date: Sep 2007
|
Re: Energy Spells & Electricity
Quote:
Using them in a medieval fantasy setting is the reverse problem from the ultra-tech case mentioned in Magic, where you might adjust the ratios for less FP per kW, because mages have access to so much power from their antimatter plants (or whatever). If you want your mages to be powered by water wheels, you might adjust those ratios up instead. But if you don't want mages to prefer building their towers next to the hydro power, then you have a built-in excuse with the values the way they are -- and you'll also probably wind up never using those spells, for lack of proper sources. |
|
05-30-2018, 06:06 PM | #6 | |
Join Date: Aug 2007
|
Re: Energy Spells & Electricity
Quote:
From the mentions of "power cells" and starship reactors measured in MW I'd say a UT/Space setting was assumed.
__________________
Fred Brackin |
|
05-30-2018, 06:19 PM | #7 |
Dog of Lysdexics
Join Date: Oct 2004
Location: Melbourne FL, Formerly Wellington NZ
|
Re: Energy Spells & Electricity
Note in 3rd Powercells of had a set wattage for any given TL. 4e removed this to allow for GM assumtions
|
05-30-2018, 08:09 PM | #8 |
Join Date: Sep 2007
|
Re: Energy Spells & Electricity
|
05-30-2018, 11:01 PM | #9 |
Join Date: Jul 2017
Location: Michigan
|
Re: Energy Spells & Electricity
We're playing a mage-punk hybrid. The base tech level of the world is TL3, but there is some Ultra-High-Tech in the world (obscenely rare, but still there).
|
05-31-2018, 08:40 AM | #10 |
Join Date: Jun 2006
|
Re: Energy Spells & Electricity
The physical energy (and power, not the same thing incidentally, if you don't know *exactly* what the difference is, these rules are probably never going to make any sense) to spell "energy" rules are generally agreed to be broken both from a game balance perspective and for what they are supposed to be for.
A household main breaker (i.e. all the power you could possibly draw for everything in your house) isn't enough to allow you to draw 1 "energy" per turn (it's at least a factor of 10 short). A semi truck engine can get you 1 "energy"/turn, barely, if it's in good condition and you run it flat out. You need an actual power plant to get anything useful out of these spells, presumably because they were written with starship power plants and physically impossible power cells intended to allow hand held beam weapons in mind.
__________________
-- MA Lloyd |
|
|