If this can be achieved I hope we leave religion behind.

[philosophy]

http://www.abc.net.au/news/2012-04-27/astronomers-say-finding-new-planets-must-be-top-priority/3977094

If we do find life sustaining planets, I certainly hope that
"religion" is not exported to them as well.

[Bill Bowden]

On Apr 27, 4:21 pm, philosophy <catswhisker...@gmail.com> wrote:

> http://www.abc.net.au/news/2012-04-27/astronomers-say-finding-new-pla...

>
> If we do find life sustaining planets, I certainly hope that
> "religion" is not exported to them as well.

Finding life sustaining planets may be the easy part. Obtaining enough
energy to get there posses bigger problems.

http://en.wikipedia.org/wiki/Interstellar_travel#Interstellar_distances

"A significant factor contributing to the difficulty is the energy
which must be supplied to obtain a reasonable travel time. A lower
bound for the required energy is the kinetic energy K = ½ mv2 where m
is the final mass. If deceleration on arrival is desired and cannot be
achieved by other means than by engines of the ship then the required
energy is considerably higher."

"The nearest known star to the Sun is Proxima Centauri, which is 4.23
light-years away. However, there may be undiscovered Brown Dwarf
systems that are closer.[4] The fastest outward-bound spacecraft yet
sent, Voyager 1, has covered 1/600th of a light-year in 30 years and
is currently moving at 1/18,000th the speed of light. At this rate, a
journey to Proxima Centauri would take 72,000 years."

-Bill

[Ian Betts]

Perhaps we will find another Methuselah but even he will be to old.

-Bill

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[lawrey]

philosophy,

Well the good news is, that we will not be alive to worry about it.:)

On Apr 28, 12:21 am, philosophy <catswhisker...@gmail.com> wrote:
> http://www.abc.net.au/news/2012-04-27/astronomers-say-finding-new-pla...
>

[philosophy]

Yes my friend, you are right.

[Timbo]

Also a living organism sustaining the force of energy/time would be highly un-probable. If it's shell could withstand the force, an organism would likely vanish inside. The best chances of aliens meeting would be reproductive life on galactic space stations in constant travel over millions of years. Organisms need to reproduce their way towards each other, instead of thrusting towards.

-Bill

[Bill Bowden]

Acceleration force may not be a problem. Acceleration at normal
gravity force will get you going at near light speed in about 1 year,
so you wouldn't feel much different than standing on the ground.
Longer periods could produce speeds greater than light using local
time to measure it. So, if we spend a year getting up to speed, and
another year slowing down, we could get to the nearest star in maybe 6
years. The big problem is still the fuel tank. I think there is a
point of diminishing returns where adding more fuel tanks doesn't
help, since the additional tanks take more energy to drag along than
the energy they contain.

-Bill

[Timbo]

So, energy to move great distance seems to be the greatest problem. You would need to find energy as you travel. You may need a micro chip device to travel ahead and search for said energy, which would require much less energy. You may be searching for several kinds of energy Hydrogen, thermal, electromagnetic radiation, gravitational, elastic, uhmm decay?

-Bill

[Bill Bowden]

Maybe free energy from empty space? It's still science fiction, but
there is some discussion of the idea. It used to be called "Zero point
energy" and was used to promote perpetual motion machines. Nowadays,
it's getting more interest. I think it has something to do with
converting space to energy, just like the reverse of energy creating
space. Maybe Rappoccio can help us out.

http://www.edge.org/3rd_culture/krauss06/krauss06.2_index.html

"There appears to be energy of empty space that isn't zero! This flies
in the face of all conventional wisdom in theoretical particle
physics. It is the most profound shift in thinking, perhaps the most
profound puzzle, in the latter half of the 20th century. And it may be
the first half of the 21st century, or maybe go all the way to the
22nd century. Because, unfortunately, I happen to think we won't be
able to rely on experiment to resolve this problem."

-Bill

[Timbo]

  But when they think they have came to know much of what knowledge can be known, experimenting becomes more important in order to accidentally discover new knowledge. NASA's argument for support.

-Bill

[Observer]

On Apr 28, 5:42 pm, Bill Bowden <bper...@bowdenshobbycircuits.info>
wrote:

Observer

And what if we learn to find and navigate a worm hole


Stephen Hawking site..

A beam of light traversing a path between two points in curved space-
time can take longer to complete the journey than a hypothetical
spaceship taking advantage of a wormhole’s shortcut connection between
the two distinct regions of space-time.




Albert Einstein

Singularities





Black Holes

Michio Kaku: Travelling Through Time




Although they may seem more the stuff of science fiction than science
fact, physicists first dreamed up the idea of wormholes. In 1935,
Albert Einstein and Nathan Rosen realized that general relativity
allows the existence of “bridges,” originally called Einstein-Rosen
bridges but now known as wormholes. These space-time tubes act as
shortcuts connecting distant regions of space-time. By journeying
through a wormhole, you could travel between the two regions faster
than a beam of light would be able to if it moved through normal space-
time. As with any mode of faster-than-light travel, wormholes offer
the possibility of time travel.

Until recently, theorists believed that wormholes could exist
for only an instant of time, and anyone trying to pass through would
run into a singularity. But more recent calculations show that a truly
advanced civilization might be able to make wormholes work. By using
something physicists call “exotic matter,” which has a negative
energy, the civilization could prevent a wormhole from collapsing on
itself. The stuff of science fiction, to be sure. But perhaps some day
in the far future, it could also turn into science fact.

[end quote]

http://www.pbs.org/wnet/hawking/strange/html/wormhole.html


[quote]

In physics, a wormhole is a hypothetical topological feature of
spacetime that would be, fundamentally, a "shortcut" through
spacetime. For a simple visual explanation of a wormhole, consider
spacetime visualized as a two-dimensional (2D) surface. If this
surface is folded along a third dimension, it allows one to picture a
wormhole "bridge". (Please note, though, that this is merely a
visualization displayed to convey an essentially unvisualisable
structure existing in 4 or more dimensions. The parts of the wormhole
could be higher-dimensional analogues for the parts of the curved 2D
surface; for example, instead of mouths which are circular holes in a
2D plane, a real wormhole's mouths could be spheres in 3D space.) A
wormhole is, in theory, much like a tunnel with two ends each in
separate points in spacetime.

There is no observational evidence for wormholes, but on a theoretical
level there are valid solutions to the equations of the theory of
general relativity which contain wormholes. Because of its robust
theoretical strength, a wormhole is also known as one of the great
physics metaphors for teaching general relativity. The first type of
wormhole solution discovered was the Schwarzschild wormhole which
would be present in the Schwarzschild metric describing an eternal
black hole, but it was found that this type of wormhole would collapse
too quickly for anything to cross from one end to the other. Wormholes
which could actually be crossed, known as traversable wormholes, would
only be possible if exotic matter with negative energy density could
be used to stabilize them. (Many physicists such as Stephen Hawking,
[1] Kip Thorne,[2] and others[3][4][5] believe that the Casimir effect
is evidence that negative energy densities are possible in nature.)
Physicists have not found any natural process which would be predicted
to form a wormhole naturally in the context of general relativity,
although the quantum foam hypothesis is sometimes used to suggest that
tiny wormholes might appear and disappear spontaneously at the Planck
scale,[6][7] and stable versions of such wormholes have been suggested
as dark matter candidates.[8][9] It has also been proposed that if a
tiny wormhole held open by a negative-mass cosmic string had appeared
around the time of the Big Bang, it could have been inflated to
macroscopic size by cosmic inflation.[10]

The American theoretical physicist John Archibald Wheeler coined the
term wormhole in 1957; however, in 1921, the German mathematician
Hermann Weyl already had proposed the wormhole theory, in connection
with mass analysis of electromagnetic field energy.[11]

This analysis forces one to consider situations...where there is a net
flux of lines of force, through what topologists would call "a handle"
of the multiply-connected space, and what physicists might perhaps be
excused for more vividly terming a "wormhole".
—John Wheeler in Annals of Physics

[end quote]

http://en.wikipedia.org/wiki/Wormhole


Psychonomist

>
> -Bill