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Archive for the ‘space’ category: Page 1022

Sep 22, 2012

Debunking the Black Hole Interstellar Drive

Posted by in categories: business, engineering, fun, physics, policy, space

Louis Crane and Shawn Westmoreland co-authored the paper Are Black Hole Starships Possible? (http://arxiv.org/abs/0908.1803) that suggested that one could use Small Black Holes to propel starships close to the velocity of light for interstellar travel. To give them credit, they stated that this is at the “edge of possibility” and would only be possible in the very distant future:

“The purpose of this paper is to investigate whether it is possible to build artificial BHs of the appropriate size, and to employ them in powerplants and starships. The conclusion we reach is that it is just on the edge of possibility to do so, but that quantum gravity effects, as yet unknown, could change the picture either way… Many questions which arise in this program lead to calculations in general relativity which have not been done. Whatever the other merits of our proposal, we are confident it will pose many interesting problems for classical and quantum relativity.”

Note, BH = Black Holes

That is it. Crane & Westmoreland were presenting an academic exercise to pose “many interesting problems for classical and quantum relativity”.

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Sep 11, 2012

Only One Interstellar Travel Community Will Succeed

Posted by in categories: engineering, finance, philosophy, physics, space

There four camps that comprise the present day interstellar travel community and only one camp will succeed.

The first camp, the conventional rocket camp, believes it is possible using conventional rockets (chemical, ion, nuclear or antimatter) to realize interstellar travel to our nearest star Alpha Centauri. One of the problems is the costs, estimated at an unthinkably large $238,596 billion and upwards. It is several thousand times greater if we choose to use antimatter.

Further, John Eades, a former senior scientist with CERN, in his March/April 2012 Skeptical Inquirer article “Antimatter Pseudoscience”, lays down the reasons why antimatter based propulsion will never be technologically feasible.

Black Hole of wealth. One down three to go.

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Sep 6, 2012

Flexible Path Flim Flam revised

Posted by in categories: asteroid/comet impacts, biotech/medical, business, counterterrorism, defense, economics, education, engineering, ethics, events, existential risks, futurism, geopolitics, habitats, human trajectories, life extension, lifeboat, media & arts, military, nuclear weapons, open source, physics, policy, space, transparency

I do not regret voting for this President and I would and will do it again. However.……I am not happy about our space program. Not at all. One would think there would be more resistance concerning the privatization of space and the inferior launch vehicles being tested or proposed. Indeed there would be objections except for a great deception being perpetrated on a nation ignorant of the basic facts about space flight. The private space gang has dominated public discourse with very little answering criticism of their promises and plans.
This writer is very critical of the flexible path.

It is a path to nowhere.

Compared to the accomplishments of NASA’s glory days, there is little to recommend the players in the commercial crew game. The most fabulous is Space X, fielding a cheap rocket promising cheap lift. There is so little transparency concerning the true cost of their launches that one space-faring nation has called the bluff and stated SpaceX launch prices are impossible. The Falcon 9, contrary to stellar advertising, is a poor design in so many ways it is difficult to know where to begin the list. The engines are too small and too many, the kerosene propellant is inferior to hydrogen in the upper stage, and promising to reuse spent hardware verges on the ridiculous. Whenever the truth about the flexible path is revealed, the sycophants begin to wail and gnash their teeth.

The latest craze is the Falcon “heavy.” The space shuttle hardware lifted far more, though most of the lift was wasted on the orbiter. With 27 engines the faux heavy is a throwback to half a century ago when clusters of small engines were required due to nothing larger being available. The true heavy rocket of the last century had five engines and the number of Falcon engines it would take to match the Saturn V proves just how far the mighty have fallen.

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Sep 6, 2012

GENCODE Apocalypse

Posted by in categories: biological, biotech/medical, business, chemistry, complex systems, counterterrorism, defense, ethics, events, evolution, existential risks, futurism, geopolitics, habitats, homo sapiens, human trajectories, life extension, lifeboat, media & arts, military, open source, policy, space, supercomputing, sustainability, transparency

http://www.sciencedaily.com/releases/2012/09/120905134912.htm

It is a race against time- will this knowledge save us or destroy us? Genetic modification may eventually reverse aging and bring about a new age but it is more likely the end of the world is coming.

The Fermi Paradox informs us that intelligent life may not be intelligent enough to keep from destroying itself. Nothing will destroy us faster or more certainly than an engineered pathogen (except possibly an asteroid or comet impact). The only answer to this threat is an off world survival colony. Ceres would be perfect.

Sep 5, 2012

Questioning the Foundations of Physics to Achieve Interstellar Travel: Part 3

Posted by in categories: business, defense, engineering, physics, space

Part 2 Here

Need For New Experiments To Test Quantum Mechanics & Relativity
We now have a new physics, without adding additional dimensions, that challenge the foundations of contemporary theories. Note very carefully, this is not about the ability of quantum mechanics or relativity to provide exact answers. That they do extremely well. With Ni fields, can we test for which is better or best?

A better nomenclature is a ‘single-structure test’, a test to validate the structure proposed by a hypothesis or theory. For example, Mercury’s precession is an excellent single-structure test for relativity, but it does not say how this compares to say, quantum gravity. On the other hand, a ‘dual-structure’ test would compare any two different competing theories. The recent three photon observation would be an example of a dual-structure test. Relativity requires that spacetime is smooth and continuous but quantum gravity requires spacetime to be “comprised of discrete, invisibly small building blocks”. This three photon observation showed that spacetime was smooth and continuous down to distances smaller than predicted by quantum gravity. Therefore, suggesting that both quantum foam and quantum gravity maybe in part or whole invalidated, while upholding relativity.

Therefore, the new tests would authenticate or invalidate Ni fields as opposed to quantum mechanics or relativity. That is, it is about testing for structure or principles not for exactness. Of course both competing theories must first pass the single-structure test for exactness, before they can be considered for a dual-structure test.

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Sep 3, 2012

Questioning the Foundations of Physics to Achieve Interstellar Travel: Part 2

Posted by in categories: business, defense, engineering, physics, space

Part 1 of this Essay is here

The Missing Link, The Ω Function
General Relativity is based on separation vectors. Splitting this separation vector into two equations, gives one part a function of mass and the other a vector-tensor function. This gives rise to the question, can the mass part be replaced by something else say an Ω function, where Ω is as yet undefined but not a function of mass? Maybe the Ω function should be a description of quark interaction, and not mass?

Now it becomes obvious that the theoretical physics community has focused on the vector-tensor part to the complete omission of the Ω function. That is, there is definitely the opportunity to question the foundations of physics.

Looking at the massless equation for gravitational acceleration g = τc2, change in time dilation divided by the change in distance is what describes a gravitational field. A small body orbiting the Earth has a certain velocity which can be converted to time dilation. Change the orbital radius of the small body by a small amount, less or more, gives a new orbital velocity and a new time dilation. Therefore, divide this change in time dilation by the change in height and multiply by the velocity of light squared, gives the gravitational acceleration present. The same is with a centripetal motion. Use the velocity along the radius at any two points. Determine the change in time dilation then divide this change in time dilation by the change in radius, the distance between the two points. Then multiply by the velocity of light squared, gives the acceleration present.

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Sep 2, 2012

Verne, Wells, and the Obvious Future Part 3

Posted by in categories: biotech/medical, counterterrorism, defense, education, engineering, ethics, events, futurism, geopolitics, life extension, media & arts, military, policy, robotics/AI, space, sustainability, transparency

A secret agent travels to a secret underground desert base being used to develop space weapons to investigate a series of mysterious murders. The agent finds a secret transmitter was built into a supercomputer that controls the base and a stealth plane flying overhead is controlling the computer and causing the deaths. The agent does battle with two powerful robots in the climax of the story.

Gog is a great story worthy of a sci fi action epic today- and was originally made in 1954. Why can’t they just remake these movies word for word and scene for scene with as few changes as possible? The terrible job done on so many remade sci fi classics is really a mystery. How can such great special effects and actors be used to murder a perfect story that had already been told well once? Amazing.

In contrast to Gog we have the fairly recent movie Stealth released in 2005 that has talent, special effects, and probably the worst story ever conceived. An artificially intelligent fighter plane going off the reservation? The rip-off of HAL from 2001 is so ridiculous.

Fantastic Voyage (1966) was a not so good story that succeeded in spite of stretching suspension of disbelief beyond the limit. It was a great movie and might succeed today if instead of miniaturized and injected into a human body it was instead a submarine exploring a giant organism under the ice of a moon in the outer solar system. Just an idea.

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Sep 1, 2012

Lunar Space Station vs. Asteroid Mission

Posted by in categories: biotech/medical, business, engineering, geopolitics, habitats, military, policy, space, transparency

http://www.msnbc.msn.com/id/48869943#.UELWXqD0SXY

The glacial pace of NASA’s human spaceflight program –even with the glaciers melting- may possibly see human beings leave Earth’s gravitational field in 2025. Possibly.

The missing piece of the puzzle is a radiation sanctuary massive enough to protect a crew from a major solar event on such a journey.

http://www.nasatech.com/NEWS/Nov05/who_1105.html

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Sep 1, 2012

Christian Astronomers

Posted by in categories: asteroid/comet impacts, biological, biotech/medical, business, chemistry, climatology, complex systems, counterterrorism, defense, economics, education, engineering, ethics, events, evolution, existential risks, finance, futurism, geopolitics, habitats, homo sapiens, human trajectories, life extension, lifeboat, media & arts, military, nuclear weapons, open source, physics, policy, space, sustainability, transparency

“The more anxiety one produces, the more the discussion there would be about how real and how possible actual existential threats are.”

John Hunt recently queried me on what steps I might take to form an organization to advocate for survival colonies and planetary defense. His comment on anxiety is quite succinct. In truth the landing on the moon was the product of fear- of the former Soviet Union’s lead in rocket technology. As we as a nation quelled that anxiety the budget for human space flight dwindled. But the fear of a nuclear winter continued to grow along with the size of our arsenals.

Interestingly, at the height of the cold war, evidence of yet another threat to human existence was uncovered in the Yucatan peninsula of Mexico in 1981; Chicxulub. But even before the dinosaur killer was discovered, perhaps the greatest threat of all to humanity was born in 1973 when Herb Boyer and Stanley Cohen created the first genetically modified organism. The money to answer both of these threats by going into space continues to be expended by the military industrial complex.

Mile wide rocks in space and microscopic organisms on earth are both threats to our existence, but the third and undoubtedly greatest threat is our own apathy. Why do we expend the tremendous resources of our race on everything BUT keeping it from going extinct?

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Sep 1, 2012

Questioning the Foundations of Physics to Achieve Interstellar Travel: Part 1

Posted by in categories: business, defense, engineering, physics, space

Would It Keep Us Awake At Night?
It is not sufficient to just challenge the foundations of physics just for the theoretical interest. To make the challenge come alive we need a goal that will keep us awake at night at the possibility of new unthinkable inventions that will take man where no man has gone before.

Is interstellar travel possible? I have found that in trying to answer this question, I am forced to challenge the foundations of physics. This question provides a vessel to discuss how to challenge, and if we have found some of the answers, there are still more questions.

The two most important questions in my opinion are, what is force?, and what is the difference between ‘travel’ and ‘arrival’? That is, why do we need to ‘travel’, why can’t we just ‘arrive’?

I started questioning the foundations of physics in 1999. In attempting to answer the question, what is force?, in 2007 I discovered a new formula for gravitational acceleration g=τc2 that does not require us to know the mass of the planet or star. τ is the change in time dilation divided by the change in distance. This is an immense discovery, never before accomplished in the 346-year history, since Newton, of the physics of gravitational fields, as all theories on gravity require us to know the mass of the planet or star.

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