|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Alternative to Rockets
Are there any way for rockets to fly in space , other then throwing mass
out in one direction and moving in other |
#2
|
|||
|
|||
Alternative to Rockets
George Kinley wrote:
Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other o solar sails o radiation Conservation of Momentum applies http://scienceworld.wolfram.com/phys...fMomentum.html |
#3
|
|||
|
|||
Alternative to Rockets
In sci.physics George Kinley wrote:
Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other Sails. -- Jim Pennino Remove -spam-sux to reply. |
#4
|
|||
|
|||
Alternative to Rockets
George Kinley wrote:
Are there any**way**for*rockets*to*fly*in*space*,*other*then *throwing*mass out in one direction and movi I'm tempted to answer with an electromagnetic tether in a gravity field, but you'd still throw mass away (even if it is a planet). You can't beat the conservation of momentum, sorry. Sincerely Bjørn Ove |
#5
|
|||
|
|||
Alternative to Rockets
"George Kinley" writes:
Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other 1.) The _definition_ of a "rocket" is "something that throws mass (or more precisely, _momentum_) out in one direction in order to accelerate in the opposite direction." If it _doesn't_ "throw mass out the back," it _ISN'T A ROCKET_. 2.) Anything that does _not_ "throw mass out the back" (or more precisely, _momentum_) in order to accelerate would violate Newton's 3rd Law of Motion (AKA, the conservation of Momentum). In 300 years, _NO ONE_ has observed a replicatable violation of Conservation of Momentum. -- Gordon D. Pusch perl -e '$_ = \n"; s/NO\.//; s/SPAM\.//; print;' |
#6
|
|||
|
|||
Alternative to Rockets
"George Kinley" wrote in message ...
Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other All methods of getting into orbit involve action-reaction in one way or another, though some can (mostly) avoid rocket engines. Methods of (mostly) avoiding rocket engines: 1) Space elevator. A long cable to geosynchronous orbit. 2) Mass drivers/railguns/coilgun launchers. Unfortunately, the big electromagnetic launchers that can fling a spaceship into orbit without turning passengers to goo is really, really long, like 600-700 miles for a 3G launch. Mike Miller, Materials Engineer |
#7
|
|||
|
|||
Alternative to Rockets
In article , George Kinley
writes: Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other Most rockets and other stuff accomplish space flight by coasting; going with the net flow of gravitation: It's only when they want to steer; accelerate or decelerate relative to that, that they have to throw off mass. ----- Posted via NewsOne.Net: Free (anonymous) Usenet News via the Web ----- http://newsone.net/ -- Free reading and anonymous posting to 60,000+ groups NewsOne.Net prohibits users from posting spam. If this or other posts made through NewsOne.Net violate posting guidelines, email |
#8
|
|||
|
|||
Alternative to Rockets
"George Kinley" wrote in message ...
Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other Perhaps. But rockets work fine for a lot of purposes. All that is necessary is sensible system design based upon technology we already know how to handle. Unfortunately, organizations and people with the necessary financial resources seem to eschew this route. Best regards, Len (Cormier) PanAero, Inc. (change x to len) http://www.tour2space.com |
#9
|
|||
|
|||
Alternative to Rockets
In article ,
George Kinley wrote: Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other Solar sails, plasma sails. -- "For every problem there is a solution which is simple, clean and wrong." -- Henry Louis Mencken |
#10
|
|||
|
|||
Alternative to Rockets
"George Kinley" wrote in message
... Are there any way for rockets to fly in space , other then throwing mass out in one direction and moving in other Well, that's what "rockets" do. So, no. But spacecraft in general might take advantage of light pressure (solar wind), or magnetic fields in the environment. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Titan 4s costly | AllanStern | Space Shuttle | 9 | February 17th 04 05:02 AM |
Von Braun rockets on Encyclopedia Astronautica | Pat Flannery | Space Science Misc | 41 | November 11th 03 08:10 AM |
Rockets | George Kinley | Science | 29 | August 1st 03 06:06 AM |
"Why I won't invest in rockets for space tourism ... yet" | RAILROAD SPIKE | Space Station | 0 | July 30th 03 12:06 AM |