On Mon, 4 Nov 2002 [EMAIL PROTECTED] wrote:
What about rocks??
You have to come up with a scheme to navigate around
the rocks anyway -- you sure aren't going to melt them.
You also may hit patches of salt. That too requires
a lot more energy to melt than ice -- though not as
much as rock.
In a message dated 11/3/2002 8:18:34 PM Alaskan Standard Time, [EMAIL PROTECTED] writes:
What about a snowcone machine type of design? Shave the ice and move
the shavings from bottom to top. It would take some power, but it could
be done. The nice thing is that the tools do not have to be that
Title: Re: Power Source
In a message
dated 11/2/2002 4:59:49 PM Alaskan Standard Time,
[EMAIL PROTECTED] writes:
You could
try non-rechargeable lithium. They are the highest energy
density batteries at the present time, which approach 3X over Pb-acid
motorcycle batteries. Other candidates
On Sat, 2 Nov 2002, Gail Leatherwood wrote:
The original concept proposed motorcycle batteries for the power source,
primarily, I think, because of their small size. How long would they
continue providing enough current to melt the ice enough for the vehicle to
sink?
For about 2 minutes
a 2 block of 5 diameter ice in a few minutes.
Joe Latrell
On Sun, 2002-11-03 at 20:56, Robert J. Bradbury wrote:
On Sat, 2 Nov 2002, Gail Leatherwood wrote:
The original concept proposed motorcycle batteries for the power source,
primarily, I think, because of their small size. How
The original concept proposed motorcycle batteries for the power source, primarily, I think, because of their small size. How long would they continue providing enough current to melt the ice enough for the vehicle to sink?
We've been talking about 500' of ice (or variously 100' or even 20
batteries for the power source, primarily, I think, because of
their small size. How long would they continue providing enough current
to melt the ice enough for the vehicle to sink?
We've been talking about 500' of ice (or variously 100' or even 20' of
ice frozen in a vertical culvert), so
to find.
Probably best to get the maximum battery connection at the same voltage
and let them work together as one giant battery discharging.
Gary
At 04:33 PM 11/2/2002 -0800, you wrote:
The original concept proposed motorcycle batteries for the power source,
primarily, I think, because
- Original Message -
From: Gary McMurtry [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, November 02, 2002 8:55 PM
Subject: Re: Power Source
PS. Recall what happened when they used thermite to raise the space ship
out of the ice in The Thing (original movie version
source? No...
In a message dated
11/10/2001 6:18:13 PM Alaskan Standard Time, [EMAIL PROTECTED] writes:
On rereading the panel report on Europa Exploration, I'm
retracting my earlier surprised claim that using Jupiter's radiation
belts as a power source for a Europa lander might
On rereading the panel report on Europa Exploration, I'm retracting my
earlier surprised claim that using Jupiter's radiation belts as a power
source for a Europa lander might prove feasible after all -- according to
the report, even if you could absorb ALL the energy from the charged
particles
- Original Message -
From: Gary McMurtry [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, October 15, 2001 3:11 PM
Subject: Re: Europa Orbiter's nuclear power source
BTW, the reason there is Pu-238 in the environment today is largely a
result of the SNAP-9a satellite RTG burn
At 14:08 15/10/2001 -0700, you wrote:
The Europa website did a lot of research in 1999 into the possibility of
utilizing Jupiter's radiation belts as a power source -- and found that
while Jupiter's radiation is just fine for chemically poisoning both living
cells and electronics, it's
- Original Message -
From: Paul Lavin [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, October 16, 2001 2:13 AM
Subject: Re: Europa Orbiter's nuclear power source
At 14:08 15/10/2001 -0700, you wrote:
The Europa website did a lot of research in 1999 into the possibility
I couldn't get the picture to send so if someone could
just answer my question that would be helpful
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- Original Message -
From: Robert J. Bradbury [EMAIL PROTECTED]
To: Europa Icepick [EMAIL PROTECTED]
Sent: Friday, October 12, 2001 12:33 AM
Subject: Re: Europa Orbiter's nuclear power source
Nope -- Europa Orbiter itself is a considerably bigger spacecraft than
the
Pluto probe
- Original Message -
From: Robert J. Bradbury [EMAIL PROTECTED]
To: Europa Icepick [EMAIL PROTECTED]
Sent: Thursday, October 11, 2001 7:55 AM
Subject: Re: Europa Orbiter's nuclear power source
On Thu, 11 Oct 2001, Bruce Moomaw wrote:
The US currently has enough domestic Pu-238
- Original Message -
From: Robert J. Bradbury [EMAIL PROTECTED]
To: Europa Icepick [EMAIL PROTECTED]
Sent: Monday, October 08, 2001 11:41 AM
Subject: Re: More jolly Space Station news
On Mon, 8 Oct 2001, Bruce Moomaw wrote:
It's what it has been from the start: some kind of
RTG's isn't a problem that will go
away anytime soon.
Just as a FYI for mission planners, Robert Freitas has estimated in
Nanomedicine (Section 6.3.7.1) that a reasonably safe power source for
nanorobots in the human body is Gd148, supplying ~100W/0.2 kg.
So if one wanted a safer, reasonably dense
I was under the impression that there was still no solution,
particularly no flight-tested solution to the problem of a
long term radioactive power source.
Has this problem been solved? If so do they plan to test it
in space before they fly it all the way to Jupiter?
Thanks,
Robert
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