Bruce Moomaw
2953 Oakleaf Dr.
Cameron Park, CA 95682
Phone: (530) 677-8353
E-mail: [EMAIL PROTECTED]
Specialties: None, really.
(I have no actual formal degree in any of the physical sciences, but I do
have whatever expertise I've picked up through four decades of fanatical
personal study of
On Fri, 1 Nov 2002 [EMAIL PROTECTED] wrote:
I know some debates have surfaced over batteries. The pro's for
batteries as I see them are:
[snip]
I would strongly urge people to *read* the materials available
on the web about previous cryobot efforts.
You are *NOT* going to get 400+ kW out
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, October 31, 2002 10:09 PM
Subject: Heating and Power
I know some debates have surfaced over batteries. The pro's for
batteries as I see them are:
Provide a weight near the nose section for
- Original Message -
From: LARRY KLAES
To: europa
Sent: Thursday, October 31, 2002 8:06 AM
Subject: What about a Slam Dunk approach to Icepick?
Remember the plans for the CRAF probe over a decade ago
that was going to send a spike-shaped probe into a comet
to penetrate its surface
- Original Message -
From: LARRY KLAES
To: europa
Sent: Wednesday, October 30, 2002 7:16 AM
Subject: Could Mars life have landed on Europa as well?
___
There's a very interesting and important scientific issue connected with
this. The idea that meteorite
Hibai Unzueta, 21 years old.
Bilbao. Basque Country (spain)
Telecommunications (electrical) Engineering student
at EHU/UPV University of the Basque Country.
Performing 4th year of a five year degree.
Doing lab work on the TCN international
standar for a realisation of a train communication
In a message dated 11/1/2002 12:42:08 AM Alaskan Standard Time, [EMAIL PROTECTED] writes:
Bruce Moomaw
2953 Oakleaf Dr.
Cameron Park, CA 95682
Phone: (530) 677-8353
E-mail: [EMAIL PROTECTED]
Specialties: None, really.
(I have no actual formal degree in any of the physical sciences, but I do
In a message dated 11/1/2002 2:21:15 AM Alaskan Standard Time, [EMAIL PROTECTED] writes:
Hibai Unzueta, 21 years old.
Bilbao. Basque Country (spain)
Telecommunications (electrical) Engineering student
at EHU/UPV University of the Basque Country.
Performing 4th year of a five year degree.
Doing
Objective:
Come up with a radio controlled working model, that can bore 500'
into an ice sheet, and leave a trail of 5 transponders at intervals of 100'
feet.
The principle purpose is not to develop new technology, but to use
extremely cheap, off the shelf parts to make a publicity boost for
Charting Course: Life in the Universe(Date: 2002-11-01 01:13:01) Topic: Missions URL: http://www.astrobio.net:8080/news/modules.php?op=modloadname=Newsfile=articlesid=303 You can read interesting articles on Astrobiology Magazine http://www.astrobio.net:8080/news/
Would information regarding MIT's Robopike (a robot that imitates the behavior of a fish) be of use to Icepick? Relevant URL: http://web.mit.edu/towtank/www/pike/ Larry- Original Message - From: Christlieb, Scott F. Sent: Friday, November 01, 2002 10:34 AM To: '[EMAIL PROTECTED]'
A. Project Management
Does anyone out there have project management software? I think we're at a
point where we'll need some scheduling, like a PERT or GANTT chart. We're not
designing the Polaris submarine or the Titan IV, but if we don't get some sort
of scheduling we'll lose track of
Being unlearned in these things, but really curious...
I don't understand how preferential heating or jetting, not that I really
know what these mean, is going to move the vehicle through ice. I'm assuming
that it means specific points of the vehicle will be heated to melting the
ice
Advanced Note: This only covers a Europa bound probe and not a
terrestrial one.
Something has really been nagging me and I wanted to throw it out to the
group.
The assumption up to this point is that ther would be debris to navigate
around. Why? Unless physics has changed, ice floats. Why
True. Good point.
I guess I pictured in my mind a glacier, where sand, rocks and boulders had
been pushed and collected over time. In the ice fields of Earth's North and
South poles, is there debris like we're talking about?
Maybe the only thing that would be present on Europa's poles is
I believe that due to its plasticity, the
pressure environment within the ice will follow a simple hydrostatic linear
trend.
On Europa, the pressure gradient can be estimated
as Ice SG X 1.324 = kPa/m Depth. So, at 10,000 m depth, the
surrounding pressure ought to be around 13240 kPa or
Scott,
Great points all.
In my vision of the device, I see gravity as the sole impetus for downward
movement. I see forward reading sonar and perhaps deep reading resistivity
sensors as the eyes of the device to see obstacles below in time to turn
to avoid them.
Preferential heating/jetting
LIFE AMONG THE STARSFrom Sky and Space, Oct/Nov 2002 www.skyandspace.com.auMore than two hundred scientists converged on Hamilton Island,Queensland, recently for a conference that was out of this world.Michael Paine reports...Every few years the International Astronomy Union holds a symposium
Leaps of rationale (leaps of logic) have lead to great inventions.
Joe Latrell
On Fri, 2002-11-01 at 12:22, Reeve, Jack W. wrote:
Scott,
Great points all.
In my vision of the device, I see gravity as the sole impetus for downward
movement. I see forward reading sonar and perhaps
I was looking over the Galileo mission photos of Europa and see many colored photos that show plenty of sediments -- minerals that are not water. They are not sure what they are and may be just higher concentrations of salt but even a salt vein or pockets would be considered debris to avoid
Keep in mind that not all of the potential obstacles in Europa's ice may be inorganic. In that case we will certainly not want to avoid them! Larry - Original Message - From: [EMAIL PROTECTED] Sent: Friday, November 01, 2002 2:49 PM To: [EMAIL PROTECTED] Subject: Re: Guidance System for
Now we get down to the nitty-gritty. Here's Part 2, courtesy of Robert
Bradbury, without whom my poor fingers would now be worn to stumps. I'll
leave out the article's pictorial data for now -- including the various
functional diagrams of control procedures, which, I think, are adequately
Here's the exciting conclusion. I've left out, for now, the reference list.
I've also, once again, left out the pictorial data, but will summarize the
graph of penetration rates in Figure 9.
5. RESULTS OF CRYOBOT PERFORMANCE TESTING
As stated in Section 4. the
Is there a reason I'm missing why no one is talking about lasers as a tool to get through Europa's ice?
Thanks,
Demetrios Deligiorgis
Heat Transfer Question:
If I understand JHB correctly, he assumes that the the melted water will be
in hydrostatic equilibrium with the surrounding ice.
This is true if:
1) the melt water and ice density are equal
2) there is no way for the water to continually squeeze through the pore
spaces
25 matches
Mail list logo
