Discussion:
Antique Car Batteries?
(too old to reply)
Justin
2008-12-16 05:18:42 UTC
Permalink
When did vehicles start having batteries in them as a standard? 1920?
How much power did the first automotive batteries supply?
Stude
2008-12-16 07:16:31 UTC
Permalink
When did vehicles start having batteries in them as a standard?  1920?
How much power did the first automotive batteries supply?
It would have been earlier than that. The first car with an electric
starter was the Caddy in 1915.
There is one in the San Diego Auto Museum. (FWIW, this meant the start
of many women drivers.)
As the first car radios came some years later and headlights were gas
(Propane or aceteline produced by a device on the car) what would be
the need?
Justin
2008-12-18 03:50:22 UTC
Permalink
Post by Stude
Post by Justin
When did vehicles start having batteries in them as a standard? 1920?
How much power did the first automotive batteries supply?
It would have been earlier than that. The first car with an electric
starter was the Caddy in 1915.
There is one in the San Diego Auto Museum. (FWIW, this meant the start
of many women drivers.)
As the first car radios came some years later and headlights were gas
(Propane or aceteline produced by a device on the car) what would be
the need?
What about power? How much electricity did they provide? 6v at a few amps?
George Patterson
2008-12-18 04:10:21 UTC
Permalink
Post by Justin
What about power? How much electricity did they provide? 6v at a few amps?
Check out early radio batteries. That's what cars first used.

George Patterson
The cost of living hasn't affected its popularity.
Stude
2008-12-18 19:50:05 UTC
Permalink
Post by George Patterson
What about power?  How much electricity did they provide?  6v at a few
amps?
Check out early radio batteries. That's what cars first used.
George Patterson
    The cost of living hasn't affected its popularity.
That will take some reearch. Why do you need the info? I might have
to charge if it gets too deep.

Also, the battery will not be putting out a full 6 volt when loaded
with starting an engine. Watch your lights dim when the starter is
cranking.
Justin
2008-12-19 04:56:28 UTC
Permalink
Post by Stude
Post by George Patterson
Post by Justin
What about power? How much electricity did they provide? 6v at a few amps?
Check out early radio batteries. That's what cars first used.
George Patterson
The cost of living hasn't affected its popularity.
That will take some reearch. Why do you need the info? I might have
to charge if it gets too deep.
Also, the battery will not be putting out a full 6 volt when loaded
with starting an engine. Watch your lights dim when the starter is
cranking.
Its a bit embarrassing. We're know are writing a screenplay; and we're
wondering what kind of power a old battery circa 1920 or so can produce.
Its a major part of the plot.
Stude
2008-12-19 20:29:43 UTC
Permalink
Post by George Patterson
What about power?  How much electricity did they provide?  6v at a few
amps?
Check out early radio batteries. That's what cars first used.
George Patterson
    The cost of living hasn't affected its popularity.
That will take some reearch. Why do you need the info?  I might have
to charge if it gets too deep.
Also, the battery will not be putting out a  full 6 volt when loaded
with starting an engine. Watch your lights dim when the starter is
cranking.
Its a bit embarrassing.  We're know are writing a screenplay; and we're
wondering what kind of power a old battery circa 1920 or so can produce.
   Its a major part of the plot.- Hide quoted text -
- Show quoted text -
If you're talking that era, it can put out maybe 50-100 amps to the
starter.
If you're trying to to kill someone, you will have to get into the
flesh to where the resistance is less.

Try putting your hand across the battery terminals in your car, which
is 12 volts, no doubt.
(Don't touch any other part of the car while doing this.)
You'll live.
Now, wet your hands and do it and you'll feel it a bit more. (try it
with one wet hand, first)

OKI,enough fooling around, I just did all I wrote above, licked
fingers - and felt NOTHING.
Admittedly, the terminals were dry and insulated by the natural
(oxide?) skin that insulates most
battery teminals.

I'm afraid that our plan is NG.
Now, if you could rewrite it so that a victim with a weak heart is
working on a running car and gets one hand on a sparkplug termnal of
the running car while the other hand is on a (wet?) part of the clean
car chassis, you might be on to something.

Now, if you take into account the ignorance of the average play / film
auduence, you'll usually get away with anything.
Playwrites don't take the geeks of Silicon Valley into account when
writing.

BTW, in the twenties, most cars were 6 volts.

For a car-involved way of underhood death, have a blade come loose
from a spinning fan on a reving engine.
This happens several times a year - never stand in the line of fire
around a running engine. This is no BS!

Let me know what you come up with.
Justin
2008-12-19 23:20:22 UTC
Permalink
Post by Stude
Post by Justin
Post by Stude
Post by George Patterson
Post by Justin
What about power? How much electricity did they provide? 6v at a few amps?
Check out early radio batteries. That's what cars first used.
George Patterson
The cost of living hasn't affected its popularity.
That will take some reearch. Why do you need the info? I might have
to charge if it gets too deep.
Also, the battery will not be putting out a full 6 volt when loaded
with starting an engine. Watch your lights dim when the starter is
cranking.
Its a bit embarrassing. We're know are writing a screenplay; and we're
wondering what kind of power a old battery circa 1920 or so can produce.
Its a major part of the plot.- Hide quoted text -
- Show quoted text -
If you're talking that era, it can put out maybe 50-100 amps to the
starter.
For a car-involved way of underhood death, have a blade come loose
from a spinning fan on a reving engine.
This happens several times a year - never stand in the line of fire
around a running engine. This is no BS!
Let me know what you come up with.
He, nice!
But we're not killing anyone. Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries.
Basically its a sci fi short story involving time travel. While a bit
lame I'll give him credit for thinking of these things. Ever see Star
Trek 4? They slingshot around the sun and up back in time. The
characters involved take a four passenger space fighter jet thing
shaped like a NASA X-23 but with faster than light capability.
Something happened to the spacecraft sending our crews back to the
1920's. In order to get back, they need to refine enough fuel to make
orbit - kerosene. They also have to calculate the trajectory via the
laptops in parallel. Since they keep the spacecraft in a shed out in
the middle of nowhere, there aren't any power lines. I also know modern
power supplies tend to fry electrical systems left over from the 1920's.
I'm not exactly sure when the modern north american sad face plug
came around, but the point is moot since they can't just bring a modern
looking spacecraft rolling around in a 1920's city.
While not exactly original, I think the fact we're trting to make it
somewhat feasible should be interesting.
I want to set it in Chicago. Chicago in the 1920's would have been
interesting. The author wants to set it in Italy, pre WW2. Where are
we supposed to get Italian antique vehicles from that period?
Surprisingly we got good responses from antique car owners who don't
mind having their vehicles involved when we start shooting - around
July. We'll probably put them in costume and have them do something.

I'm not sure, all I do is research for now.

Main obstacles for the characters: refine kerosene or alcohol for the
rocket to achieve orbit - can't fire the FTL drive in the atmosphere.
Keep the clustered laptops running and crunching numbers for the
trajectory calculations. last but not least, having the characters
interact with people of that era - after all they need food, and money
to buy fuel.
Heather & Joe Way
2008-12-20 01:52:14 UTC
Permalink
On Fri, 19 Dec 2008 18:20:22 -0500, Justin
Post by Justin
He, nice!
But we're not killing anyone. Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries....
==========================
No problem. Two 6 volt car batteries in series, even car batteries of
that era, would run a laptop for days.

You might toss in a couple of battery recharge events to keep it
believable and realistic, but the power part is a slam dunk.

Joe
--
Heather & Joe Way
Sierra Specialty Automotive
Brake cylinders sleeved with brass
Gus Wilson Stories
http://www.brakecylinder.com
Justin
2008-12-20 05:02:45 UTC
Permalink
Post by Heather & Joe Way
On Fri, 19 Dec 2008 18:20:22 -0500, Justin
Post by Justin
He, nice!
But we're not killing anyone. Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries....
==========================
No problem. Two 6 volt car batteries in series, even car batteries of
that era, would run a laptop for days.
You might toss in a couple of battery recharge events to keep it
believable and realistic, but the power part is a slam dunk.
Joe
How would one recharge a battery back then? I know I keep one of those
chargers in my trunk, is there a 20's equivalent?
Heather & Joe Way
2008-12-20 05:31:26 UTC
Permalink
On Sat, 20 Dec 2008 00:02:45 -0500, Justin
Post by Justin
Post by Heather & Joe Way
On Fri, 19 Dec 2008 18:20:22 -0500, Justin
Post by Justin
He, nice!
But we're not killing anyone. Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries....
==========================
No problem. Two 6 volt car batteries in series, even car batteries of
that era, would run a laptop for days.
You might toss in a couple of battery recharge events to keep it
believable and realistic, but the power part is a slam dunk.
Joe
How would one recharge a battery back then? I know I keep one of those
chargers in my trunk, is there a 20's equivalent?
=================================
Yes indeed. I've seen them at swap meets, but it's been a long time.

I believe period chargers used selenium rectifiers. Some early
chargers included a light bulb in series as a current control.

Sorry I can't help with more detail, but someone else will no doubt
step in.

Joe
--
Heather & Joe Way
Sierra Specialty Automotive
Brake cylinders sleeved with brass
Gus Wilson Stories
http://www.brakecylinder.com
Stude
2008-12-20 21:21:17 UTC
Permalink
Post by Heather & Joe Way
On Sat, 20 Dec 2008 00:02:45 -0500, Justin
Post by Heather & Joe Way
On Fri, 19 Dec 2008 18:20:22 -0500, Justin
Post by Justin
He, nice!
But we're not killing anyone.  Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries....
==========================
No problem. Two 6 volt car batteries in series, even car batteries of
that era, would run a laptop for days.
You might toss in a couple of battery recharge events to keep it
believable and realistic, but the power part is a slam dunk.
Joe
How would one recharge a battery back then?  I know I keep one of those
chargers in my trunk, is there a 20's equivalent?
=================================
Yes indeed. I've seen them at swap meets, but it's been a long time.
I believe period chargers used selenium rectifiers. Some early
chargers included a light bulb in series as a current control.
Sorry I can't help with more detail, but someone else will no doubt
step in.
Joe
--
Heather & Joe Way
Sierra Specialty Automotive
Brake cylinders sleeved with brass
Gus Wilson Storieshttp://www.brakecylinder.com- Hide quoted text -
- Show quoted text -
Brits used battery-powered radios at home well into the fifties and
got them re-charged at the local Chemist (drugstore to Yanks.) The
same may have existed in the US.
Stude
2008-12-20 22:02:19 UTC
Permalink
Post by Stude
Post by Heather & Joe Way
On Sat, 20 Dec 2008 00:02:45 -0500, Justin
Post by Heather & Joe Way
On Fri, 19 Dec 2008 18:20:22 -0500, Justin
Post by Justin
He, nice!
But we're not killing anyone.  Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries....
==========================
No problem. Two 6 volt car batteries in series, even car batteries of
that era, would run a laptop for days.
You might toss in a couple of battery recharge events to keep it
believable and realistic, but the power part is a slam dunk.
Joe
How would one recharge a battery back then?  I know I keep one of those
chargers in my trunk, is there a 20's equivalent?
=================================
Yes indeed. I've seen them at swap meets, but it's been a long time.
I believe period chargers used selenium rectifiers. Some early
chargers included a light bulb in series as a current control.
Sorry I can't help with more detail, but someone else will no doubt
step in.
Joe
--
Heather & Joe Way
Sierra Specialty Automotive
Brake cylinders sleeved with brass
Gus Wilson Storieshttp://www.brakecylinder.com-Hide quoted text -
- Show quoted text -
Brits used battery-powered radios at home well into the fifties and
got them re-charged at the local Chemist (drugstore to Yanks.) The
same may have existed in the US.- Hide quoted text -
- Show quoted text -
BTW,many area of the US (urban) had DC power in the homes. In the
"Back Bay" section of Boston,
this carried into the 1950s.
If your travellers knew this they might want to bring inverters,
transformers, and rectifers
George Patterson
2008-12-20 03:53:45 UTC
Permalink
Post by Justin
But we're not killing anyone. Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries.
You can hook two 6 volt batteries together in series to get the 12 volts
required. Again, though, you might want to look at radio batteries. They were
more readily available at the time, since the AC radio was in its infancy. A
radio of the period could operate all evening on a single charge. There were
facilities in medium-sized towns (or larger) to recharge them every day or
exchange them for fully charged ones.
Post by Justin
Something
happened to the spacecraft sending our crews back to the 1920's. In
order to get back, they need to refine enough fuel to make orbit -
kerosene.
Why do they have to refine it? Kerosene was invented as a replacement for whale
oil in lamps. Gasoline was actually an unwanted byproduct of kerosene production
in the late 1800s. By the 1890s, kerosene was readily available in quantities up
to perhaps 50 gallons at any hardware store. In the '20s, most gas stations had
large tanks of the stuff for use in steam-powered autos (like the Stanley). As
late as the '60s, many U.S. gas stations still had kerosene tanks of 100 to 250
gallons. Larger quantities could be had from fuel suppliers.
Post by Justin
I'm
not exactly sure when the modern north american sad face plug came
around, but the point is moot since they can't just bring a modern
looking spacecraft rolling around in a 1920's city.
If you're talking about 110 volt wiring, that plug came about in the '60s and
was mandated for new installations in the early '70s. Outlets that mimic those
used in the '20s are available from repro houses, so you could get them for your
set (try Reproduction Hardware). Most lower class city houses would have still
used gas or oil lamps for lighting, though, and would not have had electricity.
In any case, the outlet isn't an issue; your character could walk into a 1920s
hardware store, buy a period plug, cut off the 3-prong, and hook his computer
into the house wiring, grounding the safety ground to a water pipe. That's if
the computer was made in the U.S. and you set this in a major U.S. city.
Post by Justin
The author wants to set it in Italy, pre WW2. Where are
we supposed to get Italian antique vehicles from that period?
You might want to go that route. It would definitely give you an excuse for not
using the local power grid, since a U.S. computer won't run on the European
power system.
Post by Justin
last but not least, having the characters
interact with people of that era - after all they need food, and money
to buy fuel.
That's definitely not least. They'd better find someone very rich who feels
generous (unless they just happen to have a supply of antique money on board).

George Patterson
The cost of living hasn't affected its popularity.
Justin
2008-12-20 05:30:16 UTC
Permalink
Post by George Patterson
Post by Justin
But we're not killing anyone. Bascially the story involves hooking up
two or three modern laptops with car/airline adapters to antique batteries.
You can hook two 6 volt batteries together in series to get the 12 volts
required. Again, though, you might want to look at radio batteries. They
were more readily available at the time, since the AC radio was in its
infancy. A radio of the period could operate all evening on a single
charge. There were facilities in medium-sized towns (or larger) to
recharge them every day or exchange them for fully charged ones.
Ah ha...
That might be a good idea. Good interaction between the people and the
characters.

We're at the planning stages right now, we jot all ideas and put them on
a huge wall.
Post by George Patterson
Why do they have to refine it? Kerosene was invented as a replacement
for whale oil in lamps. Gasoline was actually an unwanted byproduct of
kerosene production in the late 1800s. By the 1890s, kerosene was
readily available in quantities up to perhaps 50 gallons at any hardware
store. In the '20s, most gas stations had large tanks of the stuff for
use in steam-powered autos (like the Stanley). As late as the '60s, many
U.S. gas stations still had kerosene tanks of 100 to 250 gallons. Larger
quantities could be had from fuel suppliers.
Sounds too easy.
I'm thinking kerosene of th etime wasn't as clean since it won't be
burned in a sophisticated jet.
What about alcohol? Perhaps a variant of the XCOR type rocket would be
a better plot device. They have one that runs on kerosene and one that
one that runs on alchy.
Post by George Patterson
If you're talking about 110 volt wiring, that plug came about in the
'60s and was mandated for new installations in the early '70s. Outlets
that mimic those used in the '20s are available from repro houses, so
you could get them for your set (try Reproduction Hardware). Most lower
class city houses would have still used gas or oil lamps for lighting,
though, and would not have had electricity. In any case, the outlet
isn't an issue; your character could walk into a 1920s hardware store,
buy a period plug, cut off the 3-prong, and hook his computer into the
house wiring, grounding the safety ground to a water pipe. That's if the
computer was made in the U.S. and you set this in a major U.S. city.
I think that point is moot since the whole thing will be kept away from
the city. Using mains power wouldn't work out in East Bumblefuck.
Post by George Patterson
Post by Justin
The author wants to set it in Italy, pre WW2. Where are we supposed
to get Italian antique vehicles from that period?
You might want to go that route. It would definitely give you an excuse
for not using the local power grid, since a U.S. computer won't run on
the European power system.
All laptoppower supplies can take 100/250v at 50/60Hz - since laptops
are designed to travel. I have a laptop from 1995 in my closet, even
that can take dual voltages. In that case, just buy an extension cord
for one Lire cut the end off and splice it onto the laptops power
cheater cord into the power brick. Nobody wold do that at a Holiday Inn
Express but when an adapter isn't handy you make do with a pocket knife
and electrical tape.
Post by George Patterson
That's definitely not least. They'd better find someone very rich who
feels generous (unless they just happen to have a supply of antique
money on board).
George Patterson
The cost of living hasn't affected its popularity.
Local clubs have been helpful in the past, they do stuff for the local
colleges all the time. I'm an Alum and two of the others are current
students.
One guy has a flatbed truck he's restoring. Right now the puke green
paint he used looks decent but the wheels look like they're used.
Perfect, its not pristine and it should be able to haul something as big
as a EZ-Rocket. He has a fleet of vehicles and he's known for helping
out. He's at the local malls showing off his cars all the time.
Obviously during the winter the cars hibernate, just like my GTO.
George Patterson
2008-12-21 04:36:37 UTC
Permalink
Post by Justin
I'm thinking kerosene of th etime wasn't as clean since it won't be
burned in a sophisticated jet.
Sophisticated jets don't use kerosene. Civilian jets use a fuel called jet-A,
which is very similar to diesel, which is essentially the same thing as heating
oil. You can run a modern jet on diesel or heating oil, but you can't run a
diesel engine on jet-A for long. The big advantage of jet-A is that it's less
flammable than other fuels, which makes it safer. Military jets run on something
called JP-6, which is even safer than jet-A. Early jets, however, ran on
low-test gasoline, and military jets in the 50s ran on kerosene, so it's
possible that you could run a modern jet engine on either.

In any case, the quality of kerosene back then would be much better than
anything this spaceship crew could produce on their own. Oil cracking plants
tend to be large, expensive, and complicated.
Post by Justin
What about alcohol? Perhaps a variant of the XCOR type rocket would be
a better plot device. They have one that runs on kerosene and one that
one that runs on alchy.
Alcohol is easily made, of course, but I think you would need some sort of
oxidant. Liquid oxygen would be beyond the technology of the time. Hydrogen
peroxide was used in some early rockets. You also have to figure on the fact
that prohibition started in 1920, so your crew runs the risk of imprisonment if
they try to set up a still.
Post by Justin
All laptoppower supplies can take 100/250v at 50/60Hz - since laptops
are designed to travel. I have a laptop from 1995 in my closet, even
that can take dual voltages.
And what voltages were common in Italy in the '20s?
Post by Justin
Post by George Patterson
That's definitely not least. They'd better find someone very rich who
feels generous (unless they just happen to have a supply of antique
money on board).
Local clubs have been helpful in the past, they do stuff for the local
colleges all the time.
You miss my point. Your spacefarers are going to need money to buy all of this
stuff back in 1920. VISA ain't gonna cut it. That money will have to be
something like gold or silver certificates printed back then. Having them find a
wealthy benefactor will probably have to be part of the plot. Unless they can
sell something. Maybe make it a cargo ship that's carrying a lot of something
that was expensive in 1920?

George Patterson
The cost of living hasn't affected its popularity.
Stude
2008-12-23 07:54:07 UTC
Permalink
Post by George Patterson
And what voltages were common in Italy in the '20s?
You should see the matrix of polarity/voltages/frequencies in 1970s
Italy!
Ad absurdum per aspera
2009-01-01 19:17:33 UTC
Permalink
Post by Justin
Main obstacles for the characters: refine kerosene or alcohol for the
rocket to achieve orbit
I guess that kerosene and both ethanol and denatured alcohol
(methanol) should have been readily available, though the quantity
needed for what sounds like a substantial rocket booster might be
problematic. If you want to really get a subplot with drama and/or
comic relief going, set it in Chicago, since the timeframe is the
early days of Prohibition...

Here's a picture of a 1920 car battery:
http://cgi.ebay.com/1920-Ad-Ray-Car-Battery-Batteries-Ypsilanti-Michigan_W0QQitemZ230315446314QQcmdZViewItemQQimsxZ20081221?IMSfp=TL081221113007r19182#ebayphotohosting

That leads me to a suggestion of looking at contemporary newspapers
and old movies to get a feel for the technology of the era and what it
looked like. A next phase of research would involve finding the
right museums or big-city libraries. Old encyclopedias and technology-
enthusiast magazines are good sources; for example, this link suggests
that in the US, 6V was pretty common, whereas if your story is set in
Italy, you're looking at 12V:
http://books.google.com/books?id=yQcoAAAAYAAJ&pg=PA999&lpg=PA999&dq=1920+car+battery+voltage&source=web&ots=NXKtoMHGmT&sig=mtNMGbW7G6zvcJljnzogGDzb9Ec&hl=en&sa=X&oi=book_result&resnum=2&ct=result

Note that lead-acid batteries were a pretty familiar technology by
1920. Electric cars had been neck-and-neck contenders with other
propulsion technologies since almost the earliest days of the
horseless carriage, though they were in decline by 1920; World War I
submarines had banks of batteries and ran on electric power while
submerged; etc. Electric self-starters were getting common enough by
then.

As for the laptop chargers, those of Earth at the dawn of the 21st
century can usually auto-adjust to 110-220 V a.c. 60 Hz wall current.
There was still a fair bit of 25 Hz and some other frequencies
floating around, so you'll have to look up what would have been used
in Chicago, or Italy (I think they may have had 42, 50, or 60 Hz).

Anyway, whether AC or DC (the history of rural electrification also
factors in) you can see plenty of opportunity for either major plot
influences or grace notes in the search for computer power, so good
luck!

--Joe
Justin
2009-01-08 04:14:46 UTC
Permalink
Post by Ad absurdum per aspera
Post by Justin
Main obstacles for the characters: refine kerosene or alcohol for the
rocket to achieve orbit
I guess that kerosene and both ethanol and denatured alcohol
(methanol) should have been readily available, though the quantity
needed for what sounds like a substantial rocket booster might be
problematic. If you want to really get a subplot with drama and/or
comic relief going, set it in Chicago, since the timeframe is the
early days of Prohibition...
http://cgi.ebay.com/1920-Ad-Ray-Car-Battery-Batteries-Ypsilanti-Michigan_W0QQitemZ230315446314QQcmdZViewItemQQimsxZ20081221?IMSfp=TL081221113007r19182#ebayphotohosting
That leads me to a suggestion of looking at contemporary newspapers
and old movies to get a feel for the technology of the era and what it
looked like. A next phase of research would involve finding the
right museums or big-city libraries. Old encyclopedias and technology-
enthusiast magazines are good sources; for example, this link suggests
that in the US, 6V was pretty common, whereas if your story is set in
http://books.google.com/books?id=yQcoAAAAYAAJ&pg=PA999&lpg=PA999&dq=1920+car+battery+voltage&source=web&ots=NXKtoMHGmT&sig=mtNMGbW7G6zvcJljnzogGDzb9Ec&hl=en&sa=X&oi=book_result&resnum=2&ct=result
It looks like Italy is it.

We're going to start shooting the indoor scenes next month; despite the
fact the plot and story isn't 100% finished. We'll probably shoot
different versions of the same scene more than once.
They decided to put me in the middle - I'm going to be in the craft when
it gets shot back. That was unexpected.
Post by Ad absurdum per aspera
Note that lead-acid batteries were a pretty familiar technology by
1920. Electric cars had been neck-and-neck contenders with other
propulsion technologies since almost the earliest days of the
horseless carriage, though they were in decline by 1920; World War I
submarines had banks of batteries and ran on electric power while
submerged; etc. Electric self-starters were getting common enough by
then.
As for the laptop chargers, those of Earth at the dawn of the 21st
century can usually auto-adjust to 110-220 V a.c. 60 Hz wall current.
There was still a fair bit of 25 Hz and some other frequencies
floating around, so you'll have to look up what would have been used
in Chicago, or Italy (I think they may have had 42, 50, or 60 Hz).
Any road warrior of th early 21st century carries with him an inverter
or a car cigarette lighter adapter. Today we call them power sockets.
They generally convert something like 12vDC to 15vDC to whatever the
laptop uses - eliminating the need for an inverter.
Look on ebay and search for magsafe and airline.
The current script is the characters will use the DC from the batteries
wire it to an airline/car adapter and then to the laptop.
Post by Ad absurdum per aspera
Anyway, whether AC or DC (the history of rural electrification also
factors in) you can see plenty of opportunity for either major plot
influences or grace notes in the search for computer power, so good
luck!
--Joe
I was thinking of maybe having a laptop power brick blow out, or damage
one of the laptops - this way it takes longer to do the calculations.
fred
2008-12-20 01:22:06 UTC
Permalink
Post by Justin
Post by Stude
Post by George Patterson
Post by Justin
What about power? How much electricity did they provide? 6v at a few amps?
Check out early radio batteries. That's what cars first used.
George Patterson
The cost of living hasn't affected its popularity.
That will take some reearch. Why do you need the info? I might have
to charge if it gets too deep.
Also, the battery will not be putting out a full 6 volt when loaded
with starting an engine. Watch your lights dim when the starter is
cranking.
Its a bit embarrassing. We're know are writing a screenplay; and we're
wondering what kind of power a old battery circa 1920 or so can produce.
Its a major part of the plot.
Perhaps a better direction - after reading your reply as well - would be
to involve Nicola Tesla - the inventor of alternating current and the
electrical generator. You could look up the tesla coil too. That is in the
same timespan. Plenty of voltage and current that way.
Justin
2008-12-20 05:53:06 UTC
Permalink
Post by fred
Post by Justin
Post by Stude
Post by George Patterson
Post by Justin
What about power? How much electricity did they provide? 6v at a few amps?
Check out early radio batteries. That's what cars first used.
George Patterson
The cost of living hasn't affected its popularity.
That will take some reearch. Why do you need the info? I might have
to charge if it gets too deep.
Also, the battery will not be putting out a full 6 volt when loaded
with starting an engine. Watch your lights dim when the starter is
cranking.
Its a bit embarrassing. We're know are writing a screenplay; and we're
wondering what kind of power a old battery circa 1920 or so can produce.
Its a major part of the plot.
Perhaps a better direction - after reading your reply as well - would be
to involve Nicola Tesla - the inventor of alternating current and the
electrical generator. You could look up the tesla coil too. That is in the
same timespan. Plenty of voltage and current that way.
I'll put that on the wall, but I think it will get shot down pretty
quickly. Part of the problem is not to interfere with people anymore
than they have to. The main problem is getting the thing into space.
Its not my department, but the crazy FTL drive can only be fired in
space. So once in orbit, power generation isn't an issue.

I think the Italy idea is a better one actually, we won't have to use as
many vehicles thanks to Europe not being as industrialized as the US pre
WW2 at the tail end of the depression.
George Patterson
2008-12-22 04:43:47 UTC
Permalink
Post by Justin
The main problem is getting the thing into space.
Its not my department, but the crazy FTL drive can only be fired in
space. So once in orbit, power generation isn't an issue.
Well, if you have to get it into orbit, you have to use rockets or some sort of
drive we don't have yet. Depending on the design, jets max out between 50,000'
and 70,000'. On the plus side, using rockets gives you some versatility. A
liquid fueled rocket needs two substances; the one that burns and an oxidizer.
You can elect to have your spaceship be short of either one.
Post by Justin
I think the Italy idea is a better one actually, we won't have to use as
many vehicles thanks to Europe not being as industrialized as the US pre
WW2 at the tail end of the depression.
I take it the time frame is still up in the air? A few posts back, you were
talking about 1920. The tail end of the depression was the late '30s. Frankly, I
think it would be a poor idea to place this in Italy after about 1924. Mussolini
was beginning to be a real power by that time, and it would be difficult for
your spaceship crew to find the solitude they would need in a fascist State.

On the other hand, if you think that Europe was less industrialized than the
U.S. during the '20s and '30s, you might want to hit the History department of
your local library.

George Patterson
The cost of living hasn't affected its popularity.
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