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The EM drive gets another mention



 
 
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  #31  
Old September 21st 16, 05:56 AM posted to sci.space.policy
William Mook[_2_]
external usenet poster
 
Posts: 3,840
Default The EM drive gets another mention

On Wednesday, September 21, 2016 at 4:24:10 PM UTC+12, William Mook wrote:
On Saturday, September 3, 2016 at 6:46:26 AM UTC+12, wrote:
The Impossible Propulsion Drive Is Heading to Space:

"The EmDrive, a hypothetical miracle propulsion system for outer space, has been
sparking heated arguments for years. Now, Guido Fetta plans to settle the
argument about reactionless space drives for once and for all by sending one into
space to prove that it really generates thrust without exhaust."

See:

http://www.popularmechanics.com/scie...-reactionless/


This is of intrest;

https://www.fusenet.eu/node/575#main-content

http://large.stanford.edu/courses/2010/ph240/abuzaid2/

https://www6.slac.stanford.edu/news/...on-a-chip.aspx

https://www.youtube.com/watch?v=kG1TUhYLAeM

https://www.youtube.com/watch?v=V89qvy8whxY

https://www.youtube.com/watch?v=LG1kVIIy2Ok

So, proton beam that produces a 675 keV proton beam and impact it on boron-11 nuclei to produce 8.7 MeV of energy across three alpha particles.

http://www.iaea.org/inis/collection/...8/24028563.pdf

With 8.7 MeV spread across three alpha particles, we have 2.9 MeV per alpha. Extracting the 0.676 MeV from these alpha's to power the highly efficient accelerator on a chip leaves 2.675 MeV per alpha. That's 11,358 km/sec (7,057 miles per second!) exhaust speed!

So, a kg of protium along with 11 kg of boron-11 produces 12 kg of helium-4 with a jet energy of 774.02 trillion joules of energy. Now, to impart 9..2 km/sec delta vee with such a jet this 12 kg of material can lift 14,820 kg of rocket! If the structure is 4% (592.8 kg) then the payload is 14,216 kg.

What about a rocket that boosted off Earth at 2 gees and continued at 1 gee above background - across the 384,400 km separating Earth and Moon - and landed on the moon at 1+1/6 gee? You would ipart 136.3 km/sec to the rocket. Returning to the Earth the same way requires a delta vee of 272.8 km/sec. This requires 2.374% propellant fraction. So, a 2,000 kg vehicle (the size of a large sedan) requries 47.5 kg of propellant( 4.0 kg of protiun, 43.5 kg of boron-11) It takes 3.5 hours to fly to the moon this way, and 3.5 hours to fly back. No more than two gees is felt at lift of and landing on Earth and one gee is felt throughout most of the trip.

At $1 per kg for the material it costs $25 in fuel each way. At $200,000 for the spacecraft, with 85% utilisation, and 8.5% discount over 10 years, it costs $15 each way for the capital equipment. It costs another $5 each way for maintenance and parts.

A two gee boost to the antipodes (accelerating at 2 gees at a constant radius for 6,396 km - and then cruising at 22.4 km/sec at a constant radius for 7,208 km - and then slowing at 2 gees at a constant radius for 6,396 km - arrives at the antipodes in 43.5 minutes! Doing this all with rockets outside the atmosphere requires 44.6 km/sec delta vee and 0.4% propellant fraction! So, a 2,000 kg vehicle consumes 8 kg of propellant - and costs $8 per trip and another $3 per trip for vehicle cost and maintenance. WIth six passengers this is as little as $2 per person per trip. Shorter distances require less money - scaled at 1/sqrt(distance). 1/100th of 20,000 km - is 200 km - and that takes 1/10th the time and money all things being equal. Less than $1 per trip.

1.511*10^11 meters is the current distance from Earth to Mars )21 September 2016)

http://www.wolframalpha.com/widgets/...bc0d14bda71f7e

It takes 69 hours to get to Mars. It takes 427.4 kg of material. That's $430 for fuel and $394 per the equipment and maintenance - each way. Nearly three days each way.


The point is, this is far out technology, but it doesn't violate the laws of physics! It also provides unlimited free energy by today's standards, and frees humanity of Earth, and gives us instant access around Earth!

We can go anywhere in 45 minutes or less on Earth, visit the moon in 3.5 hours, visit anywhere in the inner solar system in less time than it takes a ship to travel the oceans of Earth today. We can mine rock directly and extract unlimited materials at very little cost!

11 kg of Boron 11 and 1 kg of protium yield 774 trillion joules of energy! Each gram releases 64.6 Gigajoules of energy - the equivalent of 11 barrels of crude oil! Humanity produces 4.6 million metric tons per year of the Stuff, 80% of it is Boron 11 - that's 3.7 million metric tons. 7,328 metric tons of Boron 11 converted to energy meets ALL humanity's current needs.

Boron is about 10 ppm by wieght. That's 28 grams of the stuff every cubic meter of rock. That's 1808.8 gigajoules of energy. It takes 42 gigajoules of energy to vaporise a cubic meter of rock - separating it into its component atoms! Then condensing the plasma back into elemental form - separating out each atomic species, to be recombined by a 3D print mechanism! So, 43x the energy needed to extract the boron from the rock is available to support the process.

Put differently, all the resource problems of humanity, along with energy and transport, are resolved by reducing this bit of REAL science to practice!

At 310 Watts/m2 and fusion powered LED lights matched to chlorophyll produce 9 g/m2/day dry matter with a 35 mm separation between plates - a cubic meter of algae solution illuminated continuously and circulated with the help of microdevices flowing in solution - produces 261 grams of dry biomass per day. A person consumes 0.5 kg per day of - and so requires 2 cubic meters of hardware massing 1,950 kg to feed a person indefinitely using a 3D printer. At 36 kW per machine runs for 100 years on 1.76 kg of boron-11/protium mix.

  #32  
Old September 26th 16, 01:54 AM posted to sci.space.policy
William Mook[_2_]
external usenet poster
 
Posts: 3,840
Default The EM drive gets another mention

On Wednesday, September 21, 2016 at 4:56:03 PM UTC+12, William Mook wrote:
On Wednesday, September 21, 2016 at 4:24:10 PM UTC+12, William Mook wrote:
On Saturday, September 3, 2016 at 6:46:26 AM UTC+12, wrote:
The Impossible Propulsion Drive Is Heading to Space:

"The EmDrive, a hypothetical miracle propulsion system for outer space, has been
sparking heated arguments for years. Now, Guido Fetta plans to settle the
argument about reactionless space drives for once and for all by sending one into
space to prove that it really generates thrust without exhaust."

See:

http://www.popularmechanics.com/scie...-reactionless/


This is of intrest;

https://www.fusenet.eu/node/575#main-content

http://large.stanford.edu/courses/2010/ph240/abuzaid2/

https://www6.slac.stanford.edu/news/...on-a-chip.aspx

https://www.youtube.com/watch?v=kG1TUhYLAeM

https://www.youtube.com/watch?v=V89qvy8whxY

https://www.youtube.com/watch?v=LG1kVIIy2Ok

So, proton beam that produces a 675 keV proton beam and impact it on boron-11 nuclei to produce 8.7 MeV of energy across three alpha particles.

http://www.iaea.org/inis/collection/...8/24028563.pdf

With 8.7 MeV spread across three alpha particles, we have 2.9 MeV per alpha. Extracting the 0.676 MeV from these alpha's to power the highly efficient accelerator on a chip leaves 2.675 MeV per alpha. That's 11,358 km/sec (7,057 miles per second!) exhaust speed!

So, a kg of protium along with 11 kg of boron-11 produces 12 kg of helium-4 with a jet energy of 774.02 trillion joules of energy. Now, to impart 9.2 km/sec delta vee with such a jet this 12 kg of material can lift 14,820 kg of rocket! If the structure is 4% (592.8 kg) then the payload is 14,216 kg.

What about a rocket that boosted off Earth at 2 gees and continued at 1 gee above background - across the 384,400 km separating Earth and Moon - and landed on the moon at 1+1/6 gee? You would ipart 136.3 km/sec to the rocket. Returning to the Earth the same way requires a delta vee of 272.8 km/sec. This requires 2.374% propellant fraction. So, a 2,000 kg vehicle (the size of a large sedan) requries 47.5 kg of propellant( 4.0 kg of protiun, 43.5 kg of boron-11) It takes 3.5 hours to fly to the moon this way, and 3.5 hours to fly back. No more than two gees is felt at lift of and landing on Earth and one gee is felt throughout most of the trip.

At $1 per kg for the material it costs $25 in fuel each way. At $200,000 for the spacecraft, with 85% utilisation, and 8.5% discount over 10 years, it costs $15 each way for the capital equipment. It costs another $5 each way for maintenance and parts.

A two gee boost to the antipodes (accelerating at 2 gees at a constant radius for 6,396 km - and then cruising at 22.4 km/sec at a constant radius for 7,208 km - and then slowing at 2 gees at a constant radius for 6,396 km - arrives at the antipodes in 43.5 minutes! Doing this all with rockets outside the atmosphere requires 44.6 km/sec delta vee and 0.4% propellant fraction! So, a 2,000 kg vehicle consumes 8 kg of propellant - and costs $8 per trip and another $3 per trip for vehicle cost and maintenance. WIth six passengers this is as little as $2 per person per trip. Shorter distances require less money - scaled at 1/sqrt(distance). 1/100th of 20,000 km - is 200 km - and that takes 1/10th the time and money all things being equal. Less than $1 per trip.

1.511*10^11 meters is the current distance from Earth to Mars )21 September 2016)

http://www.wolframalpha.com/widgets/...bc0d14bda71f7e

It takes 69 hours to get to Mars. It takes 427.4 kg of material. That's $430 for fuel and $394 per the equipment and maintenance - each way. Nearly three days each way.


The point is, this is far out technology, but it doesn't violate the laws of physics! It also provides unlimited free energy by today's standards, and frees humanity of Earth, and gives us instant access around Earth!

We can go anywhere in 45 minutes or less on Earth, visit the moon in 3.5 hours, visit anywhere in the inner solar system in less time than it takes a ship to travel the oceans of Earth today. We can mine rock directly and extract unlimited materials at very little cost!

11 kg of Boron 11 and 1 kg of protium yield 774 trillion joules of energy! Each gram releases 64.6 Gigajoules of energy - the equivalent of 11 barrels of crude oil! Humanity produces 4.6 million metric tons per year of the Stuff, 80% of it is Boron 11 - that's 3.7 million metric tons. 7,328 metric tons of Boron 11 converted to energy meets ALL humanity's current needs..

Boron is about 10 ppm by wieght. That's 28 grams of the stuff every cubic meter of rock. That's 1808.8 gigajoules of energy. It takes 42 gigajoules of energy to vaporise a cubic meter of rock - separating it into its component atoms! Then condensing the plasma back into elemental form - separating out each atomic species, to be recombined by a 3D print mechanism! So, 43x the energy needed to extract the boron from the rock is available to support the process.

Put differently, all the resource problems of humanity, along with energy and transport, are resolved by reducing this bit of REAL science to practice!

At 310 Watts/m2 and fusion powered LED lights matched to chlorophyll produce 9 g/m2/day dry matter with a 35 mm separation between plates - a cubic meter of algae solution illuminated continuously and circulated with the help of microdevices flowing in solution - produces 261 grams of dry biomass per day. A person consumes 0.5 kg per day of - and so requires 2 cubic meters of hardware massing 1,950 kg to feed a person indefinitely using a 3D printer. At 36 kW per machine runs for 100 years on 1.76 kg of boron-11/protium mix.


Even farther out - but possible technology includes;

(1) the ability to absorb light and produce positron-electron molecules (Ps)
(2) the ability to store Ps molecules at densities of iron
(3) the ability to control the decay of Ps into collimated neutrino beams

https://arxiv.org/pdf/1508.01144.pdf

Now, a neutrino rocket, that operated much like a photon rocket, would have an exhaust that was invisible! The result is a vehicle that appears to float and hover silently in space.

With anti-matter based propulsion, you achieve speeds approaching that of light. So, the Tsiolkovsky equation

Vf = Ve * LN( 1/(1-u)) and its inverse u = 1 - 1 / EXP(Vf/Ve)

Where Vf= final velocity of the rocket
Ve = exhaust velocity of the rocket
LN(...) = natural logarithm
EXP(...) = Euler base exponential function
u = propellant fraction

is replaced with the Rindler equation

Vf = c * TANH( LN( 1/(1-u) ) ) and its inverse u = 1 - 1 / EXP( ATANH(Vf/c) )

Where c = light speed
TANH = hyperbolic tangent function
ATANH= hyperbolic arctangent function

A ship boosting at constant gee from Earth to Pluto say, achieves a peak speed at mid journey equal to 2.573% light speed. This requires a 2.54% propellant fraction leaving a 97.46% payload+ structure fraction. To go from Earth to Pluto and back - requires four boosts so, 90.21% of the rocket can be payload. 9.79% is positronium. It takes 18 days each way to complete the journey. Travellers to Pluto in this way return to an Earth that is 6 minutes older than they!

It takes 90 exajoules to make one metric ton of positronium. We can haul 10 tonnes or more anywhere in the solar system very rapidly.

Capturing 1 millionth of the sun's output permits the creation of 4.26 metric tons per second. 1.344 billion metric tons per year can be hauled across the solar system this distance in this way by capturing 1 millionth of the sun's output.

Boosting at one gee half way to alpha centauri attains 94.969% light speed. It takes 5.877 years to complete a journey to that nearby star in this way. Time on board is only 3.544 years. For each year on board the ship coasting at this tremendous speed, 3.193 years pass on Earth - and the ship travels 3.03 light years!

The amount of positronium needed to complete one boost is 83.94% of the take off weight, leaving 16.06% payload and structure. Two boosts, required to arrive at a target star translates to 2.58% of the original take off weight. With a photonic crystal structure that's 1/10,000 the mass of the positronium molecules they control, nearly all this weight is payload. With self-replicating machinery operating on the surface of the target star, a ship can be recharged (and repaired) at its destination.

Now with 150 cubic meters per person, and 2.1 cubic meters per metric ton of structure, a ship with 142 passengers and crew occupy 21,300 cubic meters and masses 10,000 metric tons. Take off weight is 387,597 tonnes of which 377,597 tonnes is Ps. At Ps density of 8 tonnes per cubic meter this is a propellant volume of 47,200 cubic meters. A grand total of 68,500 cubic meters.

Converting the volumes into sphere diameters we have a 34.4 meter diameter habitation sphere surrounded by a 50.8 meter diameter Ps sphere. A central sphere that sat at the centre of an oblate sphereoid that was 34.4 meters tall and 61.8 meters in diameter, would have the same volumetric relations.. The central sphere is 15 stories tall - and 202.8 feet in diameter.

It takes a day for the same fueling system that drives 1.3 billion tonnes at one gee across the solar system each year to fill 'er up! 1,000 people per week can leave the solar system - using the same infrastructure.

At 1/100th of the solar output - 10,000x greater than the previously described system - 10 million people per week can leave the solar system! We can depopulate the entire Earth in two years!

Suspended animation, using hydrogen sulphide, as described by Mark Roth, MD, may be applicable here to provide extended range and reduce the stress of long travel. Artificial Intelligence, in combination with suspended animation, and relativistic travel, can provide journey times of decades and even centuries! This means ranges of 30 to 300 light years or more.

* * *

Creating drones that are 26.78% Ps and 73.22% structure - that consists of shaped pieces of iron - and accelerating them at one gee for 224 days - attains 1/3 light speed in a tenth of a light year - deep in the Kuiper belt! So, an array of stations constructed in the Kuiper belt, collides shaped iron at 1/3 light speed to produce arrays of engineered black holes! These black holes are the weight of mosquitos, and are smaller than a proton! They interact with one another to create stable machinery of a new type forming compact Klemperer Rosettes! Now, a sheet of material that masses 146.8 billion kg/m2 produces one gee of force on its surface. A sheet of material with an areal density of 146.8 trillion kg/m2 produces 1000 gees of force on its surface. Such a sheet turned into a Spindel surface aka One Sheeted Hyperboloid

( x^2 + y^2 ) / a^2 - c^2 / z^2 = 1

can be shaped so that an object falling through the centre of the hyperboloid is accelerated without a lot of tidal forces - or crushed if it comes to rest at the centre - even with 1000 gee acceleration.

Now, such a sheet made up of arrays of microscopic black holes, forming a Klemperer rosette, that interact to cause the vacuum to decay into collimated beams of neutrinos on demand, to accelerate at 1000 gees while in coordination with an object falling through it, will cause that object to accelerate at 1000 gees while remaining in free fall!

These two innovations;

(1) decay of the vacuum to produce sensible neutrino beams for propulsion,
(2) the use of microscopic black hole arrays to gravitationally bind a payload to a propulsor,

radically transform the art of interstellar travel! At 1,000 gees we accelerate from rest to Earth escape in about 12 km distance in less than 2 seconds! The trip to Pluto that took 18 days at one gee - takes only 14.7 hours Earth time - 13.3 hours ship time - a difference of 1.4 hours each way! Top speed at mid journey is 65% light speed!

Travelling to Mars at 1000 gees takes only 2.17 hours - the difference between ship time and star time is only 21.2 seconds over the journey. Noticeable but not a problem.

A trip to the Moon at 1000 gees takes only 6.6 minutes - and the difference between Earth time and ship time is less than 1/20th of a second! Top speed is only 0.65% (2/3 of one percent) of light speed!

With this technology we can live on the Moon, and travel to Earth to work!

For shorter distances, such as in a city, we will dispense with moving the massive hyperboloid, but treat it as an entry and exchange point between fixed tube runs between buildings. A super subway that lets you fall to your destination in seconds!

10 km - 2.02 seconds
50 km- 4.52 seconds
100 km - 6.39 seconds
200 km - 9.03 seconds
500 km - 14.28 seconds
1,000 km - 20.20 seconds
5,000 km - 45.16 seconds
10,000 km - 63.87 seconds
20,000 km - 90.32 seconds

This is an engineered version of an astrophysical jet!

https://en.wikipedia.org/wiki/Astrophysical_jet

That projects objects into a stabilised tunnel at very high accelerations without heating them.

Of course, tapping into the zero point energy of the vacuum, dispenses with processing the surface of stars for energy and with positronium;

http://www.calphysics.org/zpe.html

Which means all we must do is build the first systems and make them self-replicating - tapping directly into the cosmic forces that gave rise to the cosmos in the first place!

Accelerating at 1000 gees half way to alpha centauri takes only 3 days and attains 0.9999998961284098 light speed.

At this speed, each DAY aboard ship traverses 6 LIGHT YEARS of space (and takes you 6 years into the future!) So, a decade long journey as before permits travel 22,000 light years - a vastly larger distance!

The point is, with this sort of travel, it takes only days to jump from star to star! Of course time at each star moves ahead 2,200 times faster than aboard the ship!

Not to worry - as far back as 1974 - Frank Tipler pointed out that highly massive rapidly moving cylinders violate causality according to what we know.. This means that objects moving around such objects can move back in time!

http://www.geocities.ws/theophysics/...-cylinders.pdf

And the surface just described, can have these properties as well! That is, a rotating surface can act as a time gate.

So, building an appropriately rotating surface at your point of departure, you can travel to a distant object and return, decades centuries millenia in the future, and then use the time gate to return to your time of departure. Others may use it as well forming a natural sort of resource for travellers.

With a time gate like this you can synchronise your ship time with star time using the gateway. You can also send signals through it, similar to IP signals, that are sorted and presented at their destination so all time dilation effects are taken out - providing the ability to have 'live' conversations with travellers .

In this way confusing and troubling aspects of high speed interstellar travel may be removed providing a sort of advanced commerce through the heavens that is quite accessible to human understanding.

All without violating what we know about physics.

Of course is there any real reason we must limit our acceleration to 3 days and 2.2 light years? What if we accelerate for 3.6 days ship time traversing 15 light years? Then we travel 0.9999999979137231 light speed and coasting at that speed 42.4 years pass for each day on board! A time dilation of 15,481 years to 1 year! A decade at this speed gets you across the galaxy!

Accelerating at 1000 gees for 30,000 light years gets you to 0.9999999999999996 light speed. Each day coasting at this speed moves you 61,242 light years. It takes a week to get up to this speed at 1000 gees and another week to slow down. A year at this speed lets you travel 22.4 million light years. A decade 224 million light years! Andromeda galaxy is reached in a month of travel at this speed. This is truly a cosmic capability!

Of course with this technology we can do other types of design. I'm thinking now of von Neuman probes;

https://www.youtube.com/watch?v=BN-FU8VPoOc
http://io9.gizmodo.com/how-self-repl...gal-1463732482

operated by swarm intelligence

https://www.youtube.com/watch?v=xK54Bu9HFRw
http://dsp.szu.edu.cn/dsp2006/resear...SITutorial.pdf

sent out to surveil the cosmos and return information and materiel of interest to their point of origin - and doing so nearly instantly with the help of time gates! Basically, we can survey the galaxy in a few weeks, and the nearby galaxies out to 11.7 million light years in six months - assuming we maintain strict order of returning information.

127 galaxies within 11.7 million light years

https://en.wikipedia.org/wiki/List_of_nearest_galaxies

With no upper limit on how close to light speed you can get (something the size of a ship moving with a velocity that gives it the effective mass of a star system seems probematical to me) you can get to millions of galaxies in 20 days or so at 1000 gees - that is you can travel 3 billion light years - in 20 days ship time.

There are billions of galaxies within that range.

http://www.atlasoftheuniverse.com/2billion.html

So, this is the nature of the singularity facing us! Self replicating machines with swarm intelligence, making use of the best available science to extend their powers and range.

Humans consume energy at a rate of less than 80 watts. Nanoscale devices that tap the zero point energy to energise waste materials in your body, to recharge your body with appropriate chemical energy - makes you free of food water air. Microscale devices that inhabit your skin give you protection and strength and maintain a very high level of cleanliness not possible without such devices. Implanted machinery in your visual and auditory cortex, along with the ability to stimulate your skin, tongue and nose provides a means to seamlessly interact with virtual reality - which through time portals - provide instantaneous access to all information.

http://www.dailytech.com/Scientists+...ticle14018.htm

http://www.iflscience.com/health-and...-cancer-cells/

This is transhumanism light! lol. Basically, 10 billion people consume 800 billion watts of power extracted from zero point - and made available directly to each person on demand. Transport too grows from the skin based machinery that self replicate using zero point energy.

A nanogram grows to an exagram in 89.7 replications. At 1/100th second per replications this is less than 1 second. To go from a minor dust mite sized object inhabiting your skin to a trillion metric tons - gives everyone virtually unlimited capacity to do anything they like - and know anything they want.

The supermassive black hole at the centre of the galaxy and at the centres of other galaxies, very likely are naturally occurring gateways that have existed for billions of years - giving us access to the remote past - and allow us to travel to the remote future as well.

http://www.pbs.org/wgbh/nova/physics...me-Travel.html

  #33  
Old September 26th 16, 01:15 PM posted to sci.space.policy
William Mook[_2_]
external usenet poster
 
Posts: 3,840
Default The EM drive gets another mention

I said previously about the one gee positronium ship made before the construction of engineered nano-black hole arrays;

Now with 150 cubic meters per person, and 2.1 cubic meters per metric ton of structure, a ship with 142 passengers and crew occupy 21,300 cubic meters and masses 10,000 metric tons. Take off weight is 387,597 tonnes of which 377,597 tonnes is Ps. At Ps density of 8 tonnes per cubic meter this is a propellant volume of 47,200 cubic meters. A grand total of 68,500 cubic meters.

This for a ship that has a crew of 22 and 120 passengers.

Now recall also, that for interplanetary travel I said;

A ship boosting at constant gee from Earth to Pluto say, achieves a peak speed at mid journey equal to 2.573% light speed. This requires a 2.54% propellant fraction leaving a 97.46% payload+ structure fraction. To go from Earth to Pluto and back - requires four boosts so, 90.21% of the rocket can be payload. 9.79% is positronium.

So, a 10,000 metric ton payload occupying 21,200 cubic meters housing 142 passengers and crew- will require another 2,500 metric tons of positronium enough to give the neutrino rocket on the ship 77.7 days of constant boost!

Sufficient to travel throughout the solar system before refuelling. At 8 tonnes per cubic meter this adds another 312.5 cubic meters of volume.

An oblate sphere 12 meters tall and 60 meters in diameter - 5 storeys 40 ft tall and 197 feet in diameter - would be an awesome interplanetary cruiser! 120 passengers 22 crew members - a luxury yacht equivalent.

2,500 metric tons of Ps consumed over 77.7 days is a rate of 372.4 grams per second. A self replicating solar collector 529 sq km on the solar surface makes Positronium at this rate - sufficient to keep such an interplanetary cruiser operating continuously.

It takes about 15 megajoules per kilogram to process raw materials into anything you like.

http://www.johnslewis.com/2011/01/de...-in-space.html

So, a kilogram of Ps can process 6 million metric tons of raw material into anything you like! One tonne of Ps processes 6 billion metric tons - 1,000 tonnes of Ps processes 6 trillion metric tons!

This is large enough to build a McKendree cylinder

http://www.zyvex.com/nanotech/nano4/mckendreePaper.html

The rate of fuel production is sufficient to build one of these every 30 days or so.

A sort of super-O'Neill colony! Made of silicene rather than graphene, to make use of the most abundant materials for primary construction. Ceres is 939.3x10^15 metric tons - is sufficient to build 156,550 of these colonies..

This puts our needs in perspective! Our industrial and life support needs are as nothing compared to interplanetary travel. These are as nothing compared to one gee star travel.

A neutrino rocket powered ship fuelled by positronium can be used to fly point to point on Earth on demand - at two gees - in less than 50 minutes flight time.

The inverse problem has been solved by what some have called athletic machines with very positive consequences for flight systems;

https://www.youtube.com/watch?v=KEDrMriKsFM

https://www.youtube.com/watch?v=rNKRxsNyOho

For the less adventurous, a more relaxing method of travel using similar approach

https://www.youtube.com/watch?v=KP1loMTO1YA

Of course what we're proposing here is replacing the fans and jets with neutrino powered rocket fuelled by positronium. This gives virtually unlimited range and speed. We're limited by gee loading with this level of technology - until we have engineered arrays of microscopic black holes with which to control gee forces and even time.



  #35  
Old September 26th 16, 11:34 PM posted to sci.space.policy
Fred J. McCall[_3_]
external usenet poster
 
Posts: 10,018
Default The EM drive gets another mention

Jeff Findley wrote:

In article ,
says...
I said previously about the one gee positronium ship made before the
construction of engineered nano-black hole arrays;

...

Mook is off his meds again.


Well, they never did seem to be very effective...


--
"Ordinarily he is insane. But he has lucid moments when he is
only stupid."
-- Heinrich Heine
 




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