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originally posted by: stormbringer1701
yeah and if it can produce a 90X photon effect at will that means it's internal energy is at least that big as well. so to break it down into a matter energy stream and suck it into the ship the transporters need to be at least that powerful don't they?
you need a type of bussard ram scoop and your grazers would need to graze for quite a while. but so far we cannot contain much antimatter and we cannot store it long enough to concentrate it into even a nanogram which is the minimum needed to for propulsion schemes that use it to initiate fusion of fission in a hybrid propulsion system.
originally posted by: ishum
Seems we have a supply of Anti matter within reach.
i saw articles about this being in orbit above earth a year or two ago.
i came to ATS at the time a little excited to see the discussion about it. but there was none that i found.
we dont have to create it anymore just harvest it. maybe that's the secret missions of that the unmanned space vehicle they sent up in last couple of years.
its a renewable resource too.
here's one article Antimatter
the universes particle accelerators. the sun, pulsars, black hole polar beams, super novae, the accelerator effect of the upper atmosphere. there are even more in the gas giant atmospheres and the suns "atmosphere" and the heliopause.
originally posted by: MystikMushroom
a reply to: ishum
Wait, so Earth's magnetic field "traps" antimatter?
Where did this antimatter come from?
originally posted by: stormbringer1701
originally posted by: johnwick
originally posted by: TrueBrit
a reply to: John_Rodger_Cornman
In order to do damage using antimatter, one would have to possess enough of it to cancel out the amount of matter that one wishes to remove from the battle space. That would be several trillion times the amount of antimatter ever summoned by the technomages of this or any generation of scientists. Bear in mind, it is only very recently in terms of scientific history, that we have developed methods which might be capable of containing anti matter for prolonged periods. Magnetic vacuum flasks of some sort are not readily available.
In order to weaponise antimatter, this would need to change on a massive scale.
That is incorrect.
13 lbs of plutonium at only a few percent efficiency in turning matter to energy set off in Indianapolis Indiana would end the state of Indiana for all intents and purposes.
A few grams of anti matter which annihilates at 99.999999999999999% efficiency at turning matter to energy would be about the same damage.
So to end say new York, you don't need to create an equal amount of mass in anti matter.
You need only grams of the stuff.
1.8 × 10^14 joules 43 kt TNT equivelent = 1 gram of antimatter + 1 gram of matter
Thats about slightly less than 3 Hiroshima bombs (approx 15 KT yield. )
en.wikipedia.org...
In Hiroshima almost everything within 1.6 kilometres (1.0 mi) of the point directly under the explosion was completely destroyed, except for about 50 heavily reinforced, earthquake-resistant concrete buildings, only the shells of which remained standing. Most were completely gutted, with their windows, doors, sashes, and frames ripped out.[46] The perimeter of severe blast damage approximately followed the 5 psi contour at 1.8 kilometres (1.1 mi).
The Hiroshima firestorm was roughly 3.2 kilometres (2.0 mi) in diameter, corresponding closely to the severe blast damage zone. (See the USSBS[51] map, right.) Blast-damaged buildings provided fuel for the fire. Structural lumber and furniture were splintered and scattered about. Debris-choked roads obstructed fire fighters. Broken gas pipes fueled the fire, and broken water pipes rendered hydrants useless.[50] At Nagasaki, the fires failed to merge into a single firestorm, and the fire-damaged area was only one fourth as great as at Hiroshima, due in part to a southwest wind that pushed the fires away from the city.[52]
Radiation[edit]
Local fallout is dust and ash from a bomb crater, contaminated with radioactive fission products. It falls to earth downwind of the crater and can produce, with radiation alone, a lethal area much larger than that from blast and fire. With an air burst, the fission products rise into the stratosphere, where they dissipate and become part of the global environment. Because Little Boy was an air burst 580 metres (1,900 ft) above the ground, there was no bomb crater and no local radioactive fallout.[55]
However, a burst of intense neutron and gamma radiation came directly from the fireball. Its lethal radius was 1.3 kilometres (0.8 mi),[42] covering about half of the firestorm area. An estimated 30% of immediate fatalities were people who received lethal doses of this direct radiation, but died in the firestorm before their radiation injuries would have become apparent. Over 6,000 people survived the blast and fire, but died of radiation injuries.[54] Among injured survivors, 30% had radiation injuries[56] from which they recovered, but with a lifelong increase in cancer risk.[57] To date, no radiation-related evidence of heritable diseases has been observed among the survivors' children.[58][59][60]
conclusion: while a 1 gram antimatter bomb is not to be trifled with it would not destroy a city. our megopolises are many miles across. especially if you count incorporated borroughs and suburbs. a one gram bomb would just P*** us off.
originally posted by: stormbringer1701
you also get a dead city with a single megaton class fission or fusion weapon.
or several lower yield fission or fusion weapons.
or several low relativistic impact weapons. or one mid relativistic impact weapon.
guess which one is most probably within reach of the typical madman? Which most probably does not require the infrastructure of a modern nation state, an army of scientists and technicians, restricted materials or equipment and billions or trillions of dollars to create?
It appears that breakthroughs will make access to relativistic speeds easy and cheap. If they do the world is doomed. not just cities. Mankind in it's present mentality will use it as a weapon almost as soon as it is invented. because it will be available to the whole world every individual nearly 7 billion of us. it will not be made of rare materials or require any of the stuff needed to make a atomic weapon or an antimatter weapon. it can be made anywhere with very common materials with very little in the way of tools.
imagine something with the mass of a super tanker or Massive super cargo ship plunging into the earth at relativistic speed. 44 kilos of inert matter is enough to dwarf the hiroshima bomb's destruction at only 1.3 percent c. those ships weigh 100s of thousands of times that. imagine that and then imagine it going at 70 percent c instead of 1.3 percent.
originally posted by: andy06shake
Technologies such as the above are simply to devastating to use as a weapon...