Structual Materials, for galaxtic travel

To those intrested in defining atomic activity, foe safe material for constrution of galaxtic traveling craft here is the entire list of the periodic chart, {CS} defines those senstive to cosmic activity, {GS} for those that are galaxtic senstive and ,{SS} for those that are solar senstive. those that are marked SS will become radioactive emmiters in galaxtic travel emitting gamma,beta, x-rays.
GALAXTIC PERIODIC CHART OF THE ELEMENTS
CS -16 ARGON
CS 2.660 BROMINE (GS)
CS 1.720 CHLORINE
CS -47 FLOURINE
CS -99 HELIUM
CS -86 HYDROGEN
CS 1.160 KRYPTON
CS 2.330 MERCURY (GS)
CS -75 NEON
CS -37 NITROGEN
CS -45 OXYGEN
CS 2.020 RADON (GS)
CS 1.620 XENON

GS 9.330 ALUMINIUM
GS 9.030 ANTIMONY
GS 8.090 ARSENIC
GS 5.750 ASTATINE
GS 10.00 BARIUM
GS 8.150 BISMUTH
GS 5.940 CADMIUM
GS 10.71 CERIUM (SS)
GS 3.010 CESIUM
GS 10.95 EUROPIUM (SS)
GS 3.000 FRANCIUM
GS 3.020 GALLIUM
GS 4.290 INDIUM
GS 3.860 IODINE
GS 6.000 LEAD
GS 4.530 LITHIUM
GS 9.230 MAGNESIUM
GS 9.170 NEPTUNIUM
GS 3.170 PHOSPHORUS
GS 9.130 PLUTONIUM
GS 5.270 POLONIUM
GS 3.360 POTASSIUM
GS 9.730 RADIUM
GS 3.120 RUBIDIUM
GS 4.530 SELENIUM
GS 3.700 SODIUM
GS 10.50 STRONTIUM (SS)
GS 3.860 SULFUR
GS 7.220 TELLURIUM
GS 5.770 THALLIUM
GS 5.040 TIN
GS 10.92 YTTERBIUM (SS)
GS 6.920 ZINC

SS 13.24 ACTINIUM
SS 14.49 AMERICIUM
SS 13.23 BERKELIUM
SS 15.60 BERYLLIUM
SS 23.48 BORON
SS 11.15 CALCIUM
SS 11.73 CALIFORNIUM
SS 37.73 CARBON
SS 21.80 CHROMIUM
SS 17.68 COBALT
SS 13.57 COPPER
SS 16.18 CURIUM
SS 16.85 DYSPROSIUM
SS 11.33 EINSTENIUM
SS 18.02 ERBIUM
SS 18.00 FERMIUM
SS 15.86 GADOLINIUM
SS 12.11 GERMANIUM
SS 13.37 GOLD
SS 25.06 HAFNIUM
SS 17.47 HOLMIUM
SS 27.19 IRIDIUM
SS 18.11 IRON
SS 11.91 LANTHANIUM
SS 19.00 LAWRENCIUM
SS 19.36 LUTETIUM
SS 15.19 MANGANESE
SS 11.00 MENDELEVIUM
SS 28.96 MOLYBDENUM
SS 12.94 NEODYMIUM
SS 17.28 NICKEL
SS 27.50 NIOBIUM
SS 11.00 NOBELIUM
SS 33.06 OSMIUM
SS 18.27 PALLADIUM
SS 20.41 PLATINUM
SS 12.04 PRASEODYMIUM
SS 13.15 PROMETHIUM
SS 18.45 PROTACTINIUM
SS 34.59 RHENIUM
SS 22.37 RHODIUM
SS 27.07 RUTHENIUM
SS 13.47 SAMARIUM
SS 18.14 SCANDIUM
SS 16.87 SILICON
SS 12.34 SILVER
SS 32.90 TANTALUM
SS 24.30 TECHNETIUM
SS 16.29 TERBIUM
SS 20.23 THORIUM
SS 18.18 THULIUM
SS 19.41 TITANIUM
SS 36.95 TUNGSTEN
SS 14.08 URANIUM
SS 21.83 VANADIUM
SS 17.95 YTTRIUM
SS 21.28 ZIRCONIUM

the above is just the entrie periodic chart shifted out, the majortiy of elements are atomically unstable for galaxtic travel, the elements that are atomically stable are define up to sulfur.
heres a list
CS –86 HYDROGEN
CS –99 HELIUM
CS –37 NITROGEN
CS –45 OXYGEN
CS –47 FLOURINE
CS –75 NEON

GS 4.350 LITHIUM
GS 3.700 SODIUM
GS 9.230 MAGNESIUM
GS 9.330 ALUMINIUM
GS 3.170 PHOSPHORUS
GS 3.860 SULFUR

SS 15.60 BERYLLIUM
SS 23.48 BORON
SS 37.73 CARBON
SS 16.87 SILICON

Determing the safest elements from the above list up to sulfur ccan take sevral meathods, depending on your opinion you may sort atomically by numder of protons, proton neutron pairs, or alpha pairs, electron configurations ect......


Dwayne D.L.Rabon

 

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Please, just try and build a ship out of them and prove us all wrong.

 

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Hey Dwayne

What does 'galaxtic' mean?

 

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Really then since you seem to think that you have some advantage because of your classes where is your contribution to the subject, what i have read of you there is no really arguement other you say its this and that because of your classes.
i say this before we go any father with slander, if you had a founded bases in nuclear science you would have known of the things of which i have brought to dissuccsion in this topic, and you should have provided a base for argument. apparently your knowledge of nuclear science is not mature, as you gain in understaning of it will find that i am on the right path of defining elements for galaxtic travel.
this topic was for the discussion of elements for galaxtic travel, if you have some other meathod for making a defintion of elements then post it, i have more than enough knowlegde to provide argument or agreeance.

Dwayne D.L.Rabon

 

Maybe you're thinking of gas giant planets like jupiter, saturn, neptune and uranus, which are mostly gas, and stars. Earth is made of iron more than any other element, and by far mostly solid/liquid.

Are you from Jupiter, by chance?

 

I corrected you about why light doesn't turn 'solid'. I shouldn't have to chime in that much more as others have already showed you the errors of your ways and I'd just be repeating them. First off, stable nuclei mean just that. Stable. They don't just transmute because you travel to a different galactic region. Second, if you're traveling at a significant percentage of the speed of light, the relative travel time for the craft is well short of any time that elements might transmute anyhow. It's called time dilation. Third, elements won't transmute unless given a reason to. Elements like uranium eventually transmute to lead because as they decay, they decay into elements that are still unstable, which decay further. Therefore, stable elements like iron don't transmute without a reason, some sort of energy kick to change their neutron count. And I don't even KNOW where you came up with that silicon/human relationship.

 

First, I cannot believe this thread is still going, but since it is...

I still do not agree with Mr. Rabons basic assumptions as to why we should use the elements on his list, but I would primarily use carbon anyway (and it is on his list).

"experimental measurements of nanotube heat conductivity went as high as 3000 watts/m/K, almost as high as that of diamond. He predicted that nanotube performance would reach levels of 6600 watts/m/K. The ability to conduct heat will come in handy for future circuits needing to dispose of lots of heat from tight places"
- http://newton.ex.ac.uk/aip/physnews.531.html

Carbon nanotubes would make the perfect building material for a spacecraft. It is less massive and can be much stronger than iron/ steel.

All we just need now are nanites that will spin it like spider silk.

- KitNyx

 

Oh, and I wanted to clarify something. Nobel gases do not form compounds with other elements (or themselves for that matter) under NORMAL circumstances. With the exception of Helium and Neon we have found or created compounds in the lab containing the heavier inert gases.

Even still Mr. Rabon, you list both of those elements as possible construction materials. Check out this reference:

"The noble gas elements, whose atoms have full outer orbitals tend to be stable, inert and not chemically active, are found in Group 0 Elements of the periodic table. The elements in this group are
Helium
Neon
Argon
Krypton
Xenon
Radon
Helium is an inert gas, because it has two electrons in its outer orbital. Only two electrons may reside in an s-orbital of helium and therefore the outer orbital is full.

The noble gases are characterised by their stable electronic configurations. The small atomic radii and high ionisation potential values suggest the presence of strongly bound electrons. There are no molecules and the inert gases are all monatomic. Low values for the boiling points indicate the presence of weak Van der Waal's Forces. Melting points and boiling points increase with atomic size.

They were called the inert gases, because it was thought that they would not react with other elements. Helium and Neon are not known to combine with other elements. However, compounds of the higher members of the noble gas group have been found, this is due to the presence of d orbitals (e.g. xenon tetrafluoride and krypton difluoride).

Helium is used along with oxygen by divers. Neon is used in neon sign electrical discharge tubes. Argon, krypton and xenon, are used in incandescent lamps. Radon a radioactive noble gas is used in the treatment of malignant growths. " - http://www.ucc.ie/ucc/depts/chem/dolchem/html/dict/000n1.html

So granted, we have found uses for all of the Nobel Gases, but not in building materials.

- KitNyx

 

That is right; one design for an interstellar spacecraft we came up with -
(the Surya)-
primarily consists of water ice, with carbonfibre/diamondoid strengthening; the ice cap at the front end serves as protection from interstellar dust and molecular impacts; the rear two thirds is gradually vaporised and used as reaction mass for the antimatter-excited fusion engines.

By the time this sacrificial design of craft arrives it has mostly been consumed, leaving the carbon fibre shell of the central habitable portion to enter orbit around the target star.
There is some requirement for dense metal shielding around the habitable section, however, as the antimatter reaction produces gamma rays.
_________________
SF worldbuilding at
http://www.orionsarm.com/main.html

 

were are you going to get the antimatter?

 

Perhaps Dwayne has got some...
otherwise you put some satellites in close orbit round the sun, and collect enough energy(lots!) to do some really serious high energy atom smashing; separating the debris with magnetic fields will produce a very small amount of antimatter;
for storage purposes it can be perhaps best combined as antihydrogen and frozen, then contained in a magnetic bottle-
antiprotons are allowed to evaporate off when needed, and the positrons discarded as they are not required for the catalysis of fusion.
There is a possibility that simply shining two very high powered lasers together will provoke some photons to decay to matter/antimatter pairs, but this sounds a bit unlikely to me.

SF worldbuilding at
http://www.orionsarm.com/main.html

 

Just for record. As soon as antihydrogen is made, it no long is affected by a magnetic field and will drift into the sides of the bottle. Same with normal hydrogen.

 

Luckily solid antihydrogen (and hydrogen) are weakly diamagnetic, however.
http://www.rlpotter.com/ryan/school/asen/4012/Final_Report.pdf

SF worldbuilding at
http://www.orionsarm.com/main.html

 

Or it seems you could just
http://www.gsfc.nasa.gov/news-release/releases/2003/03-84.htm
mine it out of solar flares

 

Not to mention that mining the most common asteriods will give you copious amounts.