306 research outputs found
Electromagnetic Meissner effect launcher
An electromagnetic projectile launcher provides acceleration of a superconducting projectile through the diamagnetic repulsion of the superconducting projectile. A superconducting layer is provided aft of the projectile, either directly on the projectile or on a platform upon which the projectile is carried, and a traveling magnetic field is caused to propagate along a magnetic field drive coil in which the projectile is disposed. The resulting diamagnetic repulsion between the superconducting projectile and the traveling magnetic field causes the projectile to be propelled along the coil. In one embodiment, a segmented drive coil is used to generate the traveling magnetic field
Piezoelectrostatic generator
A piezoelectrostatic generator includes a plurality of elongated piezoelectric elements having first and second ends, with the first ends fixedly mounted in a cylindrical housing and the second extending radially inwardly toward an axis. A shaft movable along the axis is connected to the inner ends of the elements to produce bending forces in piezoelectric strips within the elements. Each element includes a pair of strips mounted in surface contact and in electrical series to produce a potential upon bending. Electrodes spaced from the strips by a solid dielectric material act as capacitor plates to collect the potential charge
Relic High Frequency Gravitational waves from the Big Bang, and How to Detect Them
We show conditions for HFGW detection, employing an entropy concept written
up by Jack Ng, and Steinhard's proceedure for reconstructing tensorial
representations for relic HFGW from the onset of the big bang. The issue of the
reality of gravitons as a measurable physical object which was raised by
Rothman in 2006 is indirectly answered via a proceedure obtained from
Weinberg's 1972 book on gravitation, and all the methodologies so obtained are
referenced with respect to engineering specifications of the Li-Baker HFGW
detector. In addition, the document also refers to entanglement entropy, and
its possible aid in refining measurement predictions. Finally, commentary about
HFGW and relic neutrino physics data sets is included, with regards to
inflationary model candidatesComment: 15 pages, 1 table, 1 figure. Covers two AIP conference proceeding
entries. Pages 1-9 correspond to one ias-spes Huntsville, Alabama February
2009 conference paper on the formalism of HFGW analysis, and pages 9-13
correspond to Neutrino physics-HFGW data set comparison, in terms of
different inflationary potential candidate
Gravitinos, the Lithium problem, and DM production: Is there a corresponding neutrino physics linkage?
Studies are cited indicating that gravitino production acts as a natural
upper bound to Li6 and Li7 levels, based on what happens after hadronic decay
of relic 1 TeV into 100 GeV gravitinos at 1000 s. after the Big Bang. The
produced gravitinos contribute a large fraction of required dark matter
density. Whether or not gravitinos can be linked to neutrino production depends
on which model of dark matter (DM) is assumed or used. A model presented by the
author in 2008 links DM of about 100 GeV -- based on a phenomenological
Lagrangian creating different Neutrino masses without SUSY -- with a dark
matter candidate of about 100 GeV. This may tie in 100 GeV gravitinos with
neutrino physics.Comment: 2 pages, no figures. New article in a sequel of DM applications
articles. Conference entry to Rencontres De Moriond, for the Cosmology
meeting, February 2009, to be published late 2009 by the Gioi company of
Vietna
Propulsion Physics Using the Chameleon Density Model
To grow as a space faring race, future spaceflight systems will require a new theory of propulsion. Specifically one that does not require mass ejection without limiting the high thrust necessary to accelerate within or beyond our solar system and return within a normal work period or lifetime. The Chameleon Density Model (CDM) is one such model that could provide new paths in propulsion toward this end. The CDM is based on Chameleon Cosmology a dark matter theory; introduced by Khrouy and Weltman in 2004. Chameleon as it is hidden within known physics, where the Chameleon field represents a scalar field within and about an object; even in the vacuum. The CDM relates to density changes in the Chameleon field, where the density changes are related to matter accelerations within and about an object. These density changes in turn change how an object couples to its environment. Whereby, thrust is achieved by causing a differential in the environmental coupling about an object. As a demonstration to show that the CDM fits within known propulsion physics, this paper uses the model to estimate the thrust from a solid rocket motor. Under the CDM, a solid rocket constitutes a two body system, i.e., the changing density of the rocket and the changing density in the nozzle arising from the accelerated mass. Whereby, the interactions between these systems cause a differential coupling to the local gravity environment of the earth. It is shown that the resulting differential in coupling produces a calculated value for the thrust near equivalent to the conventional thrust model used in Sutton and Ross, Rocket Propulsion Elements. Even though imbedded in the equations are the Universe energy scale factor, the reduced Planck mass and the Planck length, which relates the large Universe scale to the subatomic scale
Propulsion Physics Under the Changing Density Field Model
To grow as a space faring race, future spaceflight systems will requires new propulsion physics. Specifically a propulsion physics model that does not require mass ejection without limiting the high thrust necessary to accelerate within or beyond our solar system and return within a normal work period or lifetime. In 2004 Khoury and Weltman produced a density dependent cosmology theory they called Chameleon Cosmology, as at its nature, it is hidden within known physics. This theory represents a scalar field within and about an object, even in the vacuum. Whereby, these scalar fields can be viewed as vacuum energy fields with definable densities that permeate all matter; having implications to dark matter/energy with universe acceleration properties; implying a new force mechanism for propulsion physics. Using Chameleon Cosmology, the author has developed a new propulsion physics model, called the Changing Density Field (CDF) Model. This model relates to density changes in these density fields, where the density field density changes are related to the acceleration of matter within an object. These density changes in turn change how an object couples to the surrounding density fields. Whereby, thrust is achieved by causing a differential in the coupling to these density fields about an object. Since the model indicates that the density of the density field in an object can be changed by internal mass acceleration, even without exhausting mass, the CDF model implies a new propellant-less propulsion physics mode
Bladder operated robotic joint
This invention is a robotic joint which is operated by inflatable bladders and which can be used in applications where it is desired to move or hold an object. A support block supports an elongated plate to which is pivotally attached a finger. A tension strip passes over a lever attached to the finger and is attached at its ends to the support block on opposite sides of the plate. Bladders positioned between the plate and the tension strip on opposite sides of the plate can be inflated by pumps to pivot the finger, with one of the bladders being inflated while the other is being deflated
On the Mechanism for a Gravity Effect Using Type 2 Superconductors
In this paper, we formulate a percent mass change equation based on Woodward's transient mass shift and the Cavendish balance equations applied to superconductor Josephson junctions, A correction to the transient mass shift equation is presented due to the emission of the mass energy from the superconductor. The percentage of mass change predicted by the equation was estimated against the maximum percent mass change reported by Podkletnov in his gravity shielding experiments. An experiment is then discussed, which could shed light on the transient mass shift near superconductor and verify the corrected gravitational potential
Spiral fluid separator
A fluid separator for separating particulate matter such as contaminates is provided which includes a series of spiral tubes of progressively decreasing cross sectional area connected in series. Each tube has an outlet on the outer curvature of the spiral. As fluid spirals down a tube, centrifugal force acts to force the heavier particulate matter to the outer wall of the tube, where it exits through the outlet. The remaining, and now cleaner, fluid reaches the next tube, which is smaller in cross sectional area, where the process is repeated. The fluid which comes out the final tube is diminished of particulate matter
The Death of Rocket Science in the 21st Century
AbstractAs we enter the 21st century, the lack of a space propulsion science discipline – involving the development of new emerging physical theories and models – within the bounds of Rocket Science forbids any rapid development of ideas and concepts toward new frontiers in spaceflight and implies a stagnate death in the advancement of Rocket Science as a whole. Specifically, the conventional disciplines in Rocket Science lacks foresight into the physics of acceleration to include the nature of gravity and inertia, which is foremost needed for the progression of spaceflight. In this paper is discussed various topics toward the understanding that space propulsion science is not a major player in Rocket Science, but must become so, if Rocket Science is to evolve the necessary new frontiers needed for future space exploration
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