Only 12 people—all Americans—have put their boots on the Moon. Today, however, NASA has no plans to send humans back to our pockmarked satellite. Instead, its space pioneers will shoot straight to Mars (and wave to the Moon as they pass it by).
A team led by MIT Professor Russ Tedrake has been selected by NASA to develop algorithms for the 6-foot-tall “Valkyrie” robot in support of future space travel to Mars and beyond.
With its nitrogen-dominated atmosphere and water-rich icy surface, Pluto seems much more hospitable than even the most sanguine planetary scientists would have wagered a decade ago. But could it ever play host to an Antarctic-styled research station?
That is, as a base to routinely house researcher/astronauts out to give humans a foothold in the outer reaches of our solar system?
“The notion of a Pluto base figures prominently in the anime ‘Star Blazers’ from my childhood, so it’d be wonderful if there were a good reason for it,” said Gerard van Belle, a research astronomer at Lowell Observatory in Flagstaff, Az., where Clyde Tombaugh discovered the diminutive dwarf planet some 85 years ago.
Massachusetts-based space company Draper has trialled a gyroscopic jet-packthat could help give astronauts new freedom when working in orbit or exploring asteroids in the future.
Yes, conceivably. And if/when we achieve the levels of technology necessary for simulation, the universe will become our playground. Eagleman’s latest book is “The Brain: The Story of You” (http://goo.gl/2IgDRb).
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Continue reading “David Eagleman: Can a Computer Simulate Consciousness?” »
SANTA CLARA, California — Robotic spacecraft may ride the solar wind toward interstellar space at unprecedented speeds a decade or so from now.
Researchers are developing an “electric sail” (e-sail) propulsion system that would harness the solar wind, the stream of protons, electrons and other charged particles that flows outward from the sun at more than 1 million mph (1.6 million kilometers per hour).
“It looks really, really promising for ultra-deep-space exploration,” Les Johnson, of NASA’s Marshall Space Flight Center in Huntsville, Alabama, said of the e-sail concept here at the 100-Year Starship Symposium on Oct. 30. [Superfast Spacecraft Propulsion Concepts (Images)].
ABSTRACT
According to Einstein, General Relativity contains the essence of Mach’s ideas. Mach’s principle can be summarized by stating that the inertia of a body is determined by the rest of the mass-energy content of the universe. Inertia here arises from mass-energy there. The latter, was a statement made by John Wheeler in his 1995 book, Gravitation and Inertia, coauthored by Ciufolini. Einstein believed that to be fully Machian, gravity would need a radiative component, an action-at-a-dis- tance character, so that gravitational influences on a body from far away could be felt immediately. In 1960’s, Hoyle and Narlikar (HN) developed such a theory which was a gravitational version of the Absorber theory derived by Wheeler-Feynman for classical electrodynamics and later expanded upon by Davies and Narlikar for quantum electrodynamics. The HN-field equation has the same type of mass fluctuation terms as in the Woodward Mach effect thruster theory. The force equation, used to predict the thrust in our device, can be derived from the mass fluctuation. We outline a new method for deriving the force equation. We present new experimental tests of the thruster to show that the thrust seen in our device is not due to either heating or Dean Drive effects. Successful replications have been performed by groups in Austria and Canada, but their work is still pending in the peer review literature.
Keywords:
Mach Effect Drive, Transient Mass Fluctuations, Mach’s Principle, Action at a Distance, Advanced Waves, Event Horizon.
ABSTRACT
The Mach Effect Thruster (MET) is a propellant―less space drive which uses Mach’s principle to produce thrust in an accelerating material which is undergoing mass―energy fluctuations, [1] –[3]. Mach’s principle is a statement that the inertia of a body is the result of the gravitational interaction of the body with the rest of the mass-energy in the universe. The MET device uses electric power of 100 — 200 Watts to operate. The thrust produced by these devices, at the present time, are small on the order of a few micro-Newtons. We give a physical description of the MET device and apparatus for measuring thrusts. Next we explain the basic theory behind the device which involves gravitation and advanced waves to incorporate instantaneous action at a distance. The advanced wave concept is a means to conserve momentum of the system with the universe. There is no momentun violation in this theory. We briefly review absorber theory by summarizing Dirac, Wheeler-Feynman and Hoyle-Narlikar (HN). We show how Woodward’s mass fluctuation formula can be derived from first principles using the HN-theory which is a fully Machian version of Einstein’s relativity. HN-theory reduces to Einstein’s field equations in the limit of smooth fluid distribution of matter and a simple coordinate transformation.
Keywords:
