
	Where results make sense

Topic: Mass driver

Related Topics

Electromagnetic catapult

Rocket propulsion

Spacecraft propulsion

Railgun

Linear motor

Colonization of the Moon

Orbital bombardment

Coil gun

Rail gun

Coilgun

Space fountain

Needlegun

Momentum wheel

Bussard ramjet

Space elevator

In the News (Wed 25 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Mass driver - Wikipedia, the free encyclopedia
		A mass driver is essentially a coil gun that magnetically accelerates a bucket device carrying a payload.
		Mass drivers can be used to propel spacecraft in two different ways: A large, ground-based mass driver can be used to launch spacecraft away from the Earth or another planet, or a spacecraft could have a mass driver on board, flinging large pieces of material into space to propel itself.
		Mass drivers seem to be somewhat widespread in the UC timeline, with notable examples located at Hong Kong on Earth, and Anaheim Electronics' factory on Luna.
	en.wikipedia.org /wiki/Mass_driver (2319 words)

	PERMANENT - Transportation - Mass Drivers
		The "mass driver" is a "catapult" tube which launches materials from the lunar surface to a Catcher/Collector, perhaps near a factory in orbit near the Moon.
		The mass driver is made of a small variety of parts, all simple and repeated in a modular way which expedites simple replacement and maintenance using a small stock of spares in case of a small failure.
		With the pull-only mass driver, no mechanical guidance means is needed to keep the bucket from crashing into a drive coil because the pull-only magnetic field of the drive coils strongly forces the bucket to levitate along the center of the drive coil tunnel.
	www.permanent.com /t-massdr.htm (3074 words)

	mass driver
		Mass drivers can be used to propel spacecraft in two different ways: A large, ground-based mass driver can be used to launch spacecraft away from the Earth or another planet or moon, or a spacecraft could have a mass driver on board, ejecting large pieces of material into space to propel itself.
		A mass driver carried by a spacecraft and used as its primary engine.
		With a suitable source of electrical power (probably a nuclear reactor) the spaceship could use the mass driver to accelerate pieces of matter of almost any sort, boosting itself in the opposite direction.
	www.daviddarling.info /encyclopedia/M/mass_driver.html (723 words)

	Mass Driver Project (Site not responding. Last check: 2007-11-06)
		The mass driver is a reusable electromagnetic catapult used to launch objects off the lunar surface into orbit.
		There is some waste because the mass driver requires a magnetic bucket for the acceleration of the payload.
		Mass drivers have continued to advance, reaching an acceleration of 1800 g’s, which only needs to be 160 meters long to launch objects from the moon.(http://www.ssi.org/body_research.html#mass-drivers)
	www.prism.gatech.edu /~gtg079h/AE1350/massdriver.htm (378 words)

	Mining the Asteroids
		A mass driver is a device which accelerates specially-designed 'buckets' along a track at extremely high velocities.
		Mass drivers have already been built which achieve payload accelerations of 30g, (30 times the force of gravity on the Earth's surface).
		The power for the mass driver would come from a thin solar panel which would have to have a diameter approximately equal to the diameter of the asteroid itself.
	psychicinvestigator.com /demo/2004S1.htm (812 words)

	A bass-reflex design based on the Audiomobile Inc Mass 2012 driver
		Although the Audiomobile driver is no longer produced, it was the driver that ushered in a new breed of high-excursion drivers such as the Blueprint drivers that weigh in at nearly 50 pounds all by themselves.
		The MASS driver was a relatively new driver at the time I built my sub (Sept 2000) and it had received a great deal of positive comments from both the professional and DIY communities.
		Since the MASS driver is suited for use in a vented enclosure, the next thing to determine was the appropriate characteristics of its enclosure.
	www.facstaff.bucknell.edu /esantane/movies/sub.html (3997 words)

	IV-2
		The mass driver would also serve as an orbital transfer vehicle, possibly reducing the cost of transport from low Earth orbit, where the external tanks for the Space Shuttle would be pelletized into reaction mass (ref.
		The mass driver is optimized to place the asteroid retrieval package in suitable orbit for the minimum number of Shuttle flights, and ideally would be identical to that designed for low-to-high Earth orbit transport (ref.
		The required start mass in LEO is shown in figure 12 as a function of exhaust velocity for a typical mission requiring ideal velocity gain on the outbound trip of 9.4 km/sec (6.4 km/sec for escape and 3.0 km/sec for transit and rendezvous maneuvers) and 3.0 km/sec on the return trip.
	www.nas.nasa.gov /About/Education/SpaceSettlement/spaceres/IV-2.html (7534 words)

	Better-mass-driver-system
		The mass collectors at L1 or L2 could be made of steel nets to resist the hot exhaust from module retros, but these will fire at some distance from the net so the gases will be dissipated and cooled off before hitting the net.
		Mass drivers at different locations on the lunar surface could launch at slightly different velocities to send payloads on what Heppenheimer called "chromatic trajectories" that all hit the same spot.
		Since mag-lev trains cost $50-$60 million per mile, a ten Gee mass driver that was 2.81 kilometers long that launches at 2.347 kps would cost $87 million to $104 million at these rates.
	www.moonminer.com /Better-mass-driver-system.html (1076 words)

	Artemis Project: Aiming Mass Driver Payloads
		Eventually there should be a mass driver build that is big enough to launch people and delicate cargo.
		The concept of a circular mass driver is functionally the same as slinging a mass on a rope.
		The common bias toward mass drivers comes from the g-forces that result from trying to point the payload in the right direction once it's going at high velocity.
	www.asi.org /adb/02/10/mass-driver-aiming.html (332 words)

	Steve Jackson Games Forums - Using mass driver engines as laser defense.
		For the rest, a sandcaster is used to defend against lasers in traveller ship combat by scattering clouds of sand in front of an attacking ship so it's lasers will be degraded by passing thru the sandcloud.
		As I see the mass driver engine (MDE) is uses finely powdered rock dust as a reaction mass and throws it out the rear at unholy speed to propel the asteroid ship it's mounted on.
		Mass drivers are certainly illegal in Earth orbit, whatever size chunks they eject.
	forums.sjgames.com /showthread.php?t=205 (1238 words)

	Mass Driver System (Site not responding. Last check: 2007-11-06)
		The propulsion system for the mass driver is very similar to this maglev track, but on a larger scale.
		According to mass driver studies by the Space Science Institute (SSI), cargo with a mass of 100 kg can be accelerated at about 1500 g's with the mass driver system.
		Thus a vehicle with a mass of 1000 kg, which will be the estimated we will use, could be accelerated with the same force at 150 g's with the new technology being developed (we will implement an acceleration of 50 g's to be on the safe side).
	www.prism.gatech.edu /~gtg108i/space.html (597 words)

	III-1
		Basic formulas for mass optimization, general enough to apply to a wide variety of mass drivers (both planar and axial are given in references 4 and 5.
		The state of the art of the theoretical design of mass drivers as of September 1977 was summarized at the International Astronautical Federation Conference of that year (ref.9).
		Here we consider the electrical design of a particular family of mass drivers (axial geometry, with a specified value for the ratio of bucket to drive coil radii) in the approximation that accelerations are calculated for currents taken to be thin filaments.
	www.belmont.k12.ca.us /ralston/programs/itech/SpaceSettlement/spaceres/III-1.html (3700 words)

	Comments on the new Massachusetts Driver's Manual
		This law, which prohibits drivers from exceeding a safe speed regardless of the posted speed limit, is for drivers of all vehicles, not just motor vehicles.
		The other rule, requiring that a driver yield to "any vehicle in the intersection of approaching on another roadway so closely as to constitute an immediate hazard..." is stated in Ch.
		A driver is required to yield to the right, "when the road is of sufficient width for the two vehicles to pass" [MGL Ch.
	www.bikexprt.com /massfacil/laws/drivmanl.htm (2818 words)

	SPACE.com -- Insurance Plans for Humanity's Survival
		Several versions of a mass driver were pursued in years past -- a concept originally developed at the Massachusetts Institute of Technology, under the direction of Henry Kolm and ONeill.
		One duty for a mass driver, as first proposed, was to move raw lunar material efficiently and economically to high Earth orbit for processing.
		An expert on detection and deflection of potentially harmful bodies, Friedman said a mass driver would be built on an asteroid, which would also be covered with solar collectors that supply solar power to run the driver operations.
	www.space.com /scienceastronomy/planetearth/mass_drivers_010510.html (1053 words)

	Amazon.com: Driver's Ed: Books: Caroline B. Cooney (Site not responding. Last check: 2007-11-06)
		Driver's Ed is about some teenagers that steal a stop sign and someone dies in a car crash as a result.
		Driver's ED is a book about the consiquenses of not thinking befor you act and how it is important to love your family evan when you do not fee like it.
		Driver's Ed is a very good book that catches the reader's attention because of the characters, setting, and the plot.
	www.amazon.com /exec/obidos/tg/detail/-/0440219817?v=glance (2439 words)

	CYGO's Space Initiative (Site not responding. Last check: 2007-11-06)
		The Mass driver I built lasted about 10 shots before it destroyed itself, inevitable due to the fact that I didnt make it to last, just to see if I could do it.
		It is more econimical to move supplies or people between the 2 stations with a mass driver than with a ship.
		Ok, so in theory the mass driver would negate the need for shuttles but in reality if there was a solar flare or magnetic storm that hit, then you would need a space shuttle to recover the payload, hmmmm seems like a waste of effort then.
	www.cygo.com /cgi-bin/yabb/YaBB.pl?board=spctrans;action=display;num=1038194785 (1004 words)

	Mass Launcher
		The Mass Launcher fires a 4-ounce projectile to a velocity capable of splitting a 1 x 2” pine board on impact.
		The accelerator coil induces a very high amperage current in the projectile that now sets up its own magnetic field that opposes that in the coil causing a repulsive moment of accelerative force on the projectile.
		The Mass Launcher uses a flat spiral coil arranged with a vertical flyway and wooden support base.
	www.amazing1.com /mass-launcher.htm (293 words)

	Mass Driver as First Acceleration Stage
		Heinlein, in _The Man Who Sold the Moon_ based his driver on the side of Pikes Peak in Colorado, and he also used them in _The Moon is a Harsh Mistress_ on the moon and on earth.
		EM and other powered mass drivers have been proposed by many, going back to Heinlein, and possibly even before him.
		Once the vehicle reaches such a high altitude that the laser is attenuated, or falls beyond the horizon, the vehicle starts injecting fuel and oxidizer from on board tanks into the thurst cone (the rear cone of the vehicle acts as an aerospike type thrust cone).
	www.itsf.org /resources/factsheet.php?fsID=145 (159 words)

	Tango Report: Lunar Mass Drivers
		A mass driver system is an electromagnetic linear accelerator.
		The advantages of a mass driver system as compared to chemical rockets are numerous.
		Installing a mass driver on the surface of the Moon would be a marginally complex
	martyr.er7600.com /2005/04/lunar-mass-drivers.html (1842 words)

	Mass Driver for Escape Velocity
		One way to reduce the cost of lifting mass into orbit is to use a linear accelerator to drive a payload up to escape velocity (or thereabouts) and then let it go.
		Assume that fusion energy has been developed and electricity is cheap, and that high temperature superconductors have made such a mass driver feasible.
		Either way, this is a reasonable estimate of the velocity the driver must be able to produce.
	www.phy.duke.edu /~rgb/Class/review53/node80.html (246 words)

	Storage: USB Mass Storage Driver
		The USB adaptor case I purchased came with drivers for Win 98 or older.
		This might help getting a "generic" driver since there doesn't seem to be any manufacturer name on that enclosure.
		That controller is made by Genesis Logic, I didnt' see any driver on their website, but from a review of the product on some chinese site, it looks like it can use the NEC USB 2.0 driver.
	www.experts-exchange.com /Storage/Q_20544110.html (950 words)

	SF Citations for OED
		Mass driver is only the current name for this concept.
		He lumbered down the giant torus—passing other armored beamjacks at work on the skeleton, glimpsing construction pods transporting material from one side of the torus to another, spotting through the gridwork the floating hulk of a mass-driver barge which had hauled aluminium cassettes up from Descartes Station on the Moon.
		Robots on another facet of the asteroid were constructing a mass driver, an engine that would use the deuterium from the indigenous water to fire crushed rock away from the asteroid at speeds of two hundred kilometres a second.
	www.jessesword.com /sf/view/478 (486 words)

	Boston.com / News / Local / Mass. / Driver's license bill advances
		The Massachusetts bill, attracting an unusual alliance of supporters that includes police chiefs and immigrant groups, would allow applicants to obtain a driver's license by submitting a taxpayer identification number that is commonly issued by the Internal Revenue Service.
		Massachusetts advocates argue that undocumented immigrants are an integral part of the state economy and should be allowed to legally drive to and from work.
		The Massachusetts Association of Chiefs of Police pointed out that drivers with licenses are much less likely to flee the scene of a crash.
	www.boston.com /news/local/massachusetts/articles/2003/10/26/drivers_license_bill_advances (1118 words)

	GolfReview.com - Yonex V-Mass 250 Driver Reviews
		The driver is a 9 degree loft and I can regularly hit over 280 yds no problem.
		I've had it now for about six months and although it isn't as huge as other drivers on the market, I think it certainly holds it's own with them as some of the folks I play with regularly are usually outdriven by it.
		Wow this driver stinks, ive had it for 2 years and have a proforce 65 stiff in it, the last shaft was whippy times ten and the clubhead is a tin can with some paint on it, definately try before u even consider.
	www.golfreview.com /cat/drivers/yonex/PRD_131779_2948crx.aspx (463 words)

	SSTL : Educational Activities (Site not responding. Last check: 2007-11-06)
		Two widely used methods for mitigating structural vibration due to natural hazards such as wind and earthquakes are active mass driver / tuned mass damper systems and base isolation.
		Two short clips from the video of the active mass driver experiment are available by clicking below.
		Video Clip of the AMD Experiment - MPEG, 1.3 MB This video clip demonstrates the effectiveness of the Active Mass Driver System for Structural Control through use of a split screen display.
	cee.uiuc.edu /sstl/education (774 words)

Try your search on: Qwika (all wikis)