Invest in companies that work towards improving propulsion like this and not in companies content to make more electronic toys. Think about it, which is bad ass? sitting on the bus playing on an iPad or putting a flag on Mars?
its att voice for text aloud etc. PDF reader programm that speaks the books for you. I love the program, there are better voices yet they still get some phonics wrong, haha.
If all you fools can think about is the voice ,then you have no clue to what really going on in space, maybe you should pull your heads out of your asses...
i think ufo are real and true,and the government of united states of america should bought this technologies and not to sell to other part of countries of the world and it is very usefull in americas exploration and safety.
the germans started the testing for these engines but it seemed his attept was going straite up if it was a space craft and if it wasnt a probe flying north and rasing altitube till u break the athmosphere get get u out of here
REAL Free energy technology exists!But the big oil corporations don't want that technology revealed,Get a motor that needs no gas or electric input at LT-MAGNET-MOTORdotCOM ,Join the energy revolution!
thers this probe using ion propulsion its going to the asteroid belt and its going to take like years to get there ION PROPULSION SUCKS! the probe is at 2:12
i'm not entirely certain but i would suspect that it would gain eventual propulsion - similar to hitting golf balls whilst sitting in a shopping cart; hit enough of 'em consistently (and) you might actually get somewhere.
The Apollo moon missions were faked in a studio. To see a partial summary of hoax evidence, google "The Naked Scientists". In the "New Theories" section of the forum there's a thread entitled "Did We Land on the Moon?". The summary is on page 15 of the thread. It's the 7th post from the top.
Ion propulsion is cooler than detonating nuclear charges behind a ship. Is it possible to build a large multiple nozzle ion engine like this to place behind a more sizable ship? Say a ship that could take astronauts to mars?
I doubt that the quantity of thrust they state in the video is accurate. I have built home-made ion thrusters with nearly that much thrust. I would not be a bit suprised if these engines are not already in use for atmospheric aircraft.
Not very long considering i built it from tin foil and copper wire. You want a brush discharge but no arcing. I used a signal generator with a driver circuit powering a flyback transformer. Never breath large amounts of ozone, it's very bad for the lungs.
oh yea and did the ion magnifier not interfeir with the arogn transfusion engine. i hope not, i got that once and had to deal with the eisen hower effect, damn that was somthing. Na im just kidding i have absolutly no idea what you are on about but thanks anyway.
you might but that would be a fallacy, the closer to you get to C (the speed of light) I.E. .97C or so the energy required to accelerate faster increases exponentially,
hmmn, well u don't actually need to hit the speed of light, u simply need to get past half the speed of light to break the barrier... *if u think about it, there might be some planets doing that in the universe already*
so anyway, take 2 objects going away from each other, and poof! u break the barrier! or supposed barrier.
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Ok perhaps some one can answer this question for me. Understandable that ION engines are not yet capable of providing great amounts of thrust, but would there be any forseeable dange in using one in a planets atmospher specificaly our own?
Ion thrusters (or properly known as magnetoplasmadynamic ion thrusters) operate on Xenon, an inert substance. These are not dangerous, and it's essentially the same physics behind what is going on in those lightning orbs you can buy at junk stores :-P. It's unlikely they'll ever be used as primary propulsion sources, but they have tremendous potential for deep space exploration.
you probably can't use it in the atmosphere :) the force is way to weak. About the same as a sheet of paper on your hand.They work by building up speed
if i understand this right, than the having an ionpropulsion engine big enough to lift a person would probably look like an enormous continuous lightning bolt exploding from the underside of the craft
VASIMR is up to tens times as fuel efficient, plus it puts out a lot more thrust. A mission to mars would actually take longer with an ion engine since it takes many months just to reach the necessary speed. However, a VASIMR engine, firing continuously could be just as fast as a chemical rocket. Only problem is, the technology is still in it's infancy. there will be an experimental probe launched sometime soon tho, either 2009 or 2010.
VASIMR still has a lot less thrust than chemical rockets. It could take days, even weeks to reach the moon, whereas as chemical rocket can reach the moon in three days, and fires it's engines for three minutes. However, VASIMR would use a lot less fuel and could actually be cheaper when used for unmanned freight. It can't really be used for manned lunar missions since it would be in the van Allen belts for days while it completes a spiral orbit.
that is true but why would someone try to even make a elevator to orbit, there is many risk for this project, it can be damaged which can risk lives, or be destoryed by debris or comets passing by at high speed
the reason is the lower cost to get into orbit, since electric motors are far cheaper to run than rocket engines...
that means a person could haul all sorts of materials into space and get it into orbit from there-
concrete, metal, glass
you could build a rocket with ion engine and put that on there, then launch it from orbit, instead of burning a billion dollars of fuel and the risk isn't even as bad as current rocket technology, which is extremely risky
sorry, Hayabusa is on the way to return to the earth by useing ion engine system in order to send its capsule filling of sample of surface of planete Itokawa on Oct.2010.
by japanese planete survey equipment "Hayabusa".Hayabusa took some sample of surface of planete "Itokawa" and on the way to return to the earthe on 2008.10 by using ion engine system.
the ion engines are only usable in space, where no resistance or force pulls at it. Although it only emits a few grams of thrust it will "burn" for a looooong time, and eventually a spacecraft will reach high speeds.
It will need conventional rockets to get it into space though.
guy brilliant idea why not use this engine in cars, build a small engine that will move a car, and i know what your thinking how to conver this engine into mechanical power or torque power, that what make a car go up a hill.
The thrust of an ion thruster is very little- it's like standing on a skateboard and shooting a fire extinguisher- wouldn't be practical anywhere except in space, where momentum can grow without gravitational and frictional interference
Um, no. Iron Man uses Repulsor Beam (Fictional) technology in his thrusters, as well as his hand cannons. They work in a way that repulses whatever is in front of it. In the same way you are pushed backward when you push on a kitchen counter while wearing socks, instead of the whole thing buckling forward, Iron Man moves, and the planet doesn't. It is uncertain how Repulsor Beams work, but it may be similar to Star Wars' Repulsorlift technology, used in speeders and starships for lift. TIEs Cont
I heard this way of propulsion came from an Episode of Star Trek TOS.
I've known about that for some time and I have designed this engine into space craft that I have designed, just my little aritsts conception of the future.
Oh, and I have no idea what you've been talking about in other comments lol
One viable option could be a combination probably of more propulsion types for interstellar travel. Eg a sail for the initial push close to the sun and deceleration, electric engines powered by nuclear fission (or fusion if it is in the future). I
I had the same thought. Perhaps with some close flybys of the Sun to boost velocity using the sail, and a few planetary gravitational assist maneuvers. The ion engine would also be useful for course control while in the solar system.
Cool. It seems that if we wanted to send an unmanned mission to the nearest star using todays technology, this would be the way to go. But how long (centuries, millenia?) would that take? (And how realistic is it?)
You would have to take a fission reactor along to power the ion engine, but it seems do-able. It would take quite a while though. I believe solar sails can achieve much higher velocity. I'm sure we could launch something in 10 years time that would overtake anything we launch now.
It depends on what the maximum thrust is for this engine. I have done calculations for going to Alpha Centauri, our closest neighboring star system. Alpha Centauri is located 4.1 light years away from our Solar System; thus, with a constant acceleration resulting in an average velocity of 50% of the speed of light (.5c) it would take us 28 years to get there.
For a rocket engine, to maintain fuel efficiency it is necessary to keep the maximum spacecraft velocity below the exhaust velocity. Take as an example a spacecraft moving away from us at a speed equal to the exhaust velocity - recently expelled fuel will be stationary relative to us - it contributes zero momentum overall to the spacecraft ! The momentum gained when it was expelled is equal to the momentum absorbed by the fuel earlier in the flight.
I disagree. Supposed the spacecraft travels at speed v away from us and has mass m. It's momentum is m*v, if say half it's mass remains stationary, you have 0*m/2+v2*m/2=m*v (conservation of momentum, where v2 is the speed of the craft) => v2=2*v, the speed away from us doubled !. "maximum spacecraft velocity" dosen't exist, any rocket propulsion system can reach any speed if you run it long enough :).
You're correct that there is no maximum spacecraft velocity, but in order for the spacecraft to reach a velocity in excess of the exhaust velocity it is necessary to carry a very large mass of fuel at launch. The overall fuel efficiency drops rapidly.
Yes i understand what you meant. It's not that the engine itself is less performant at higher speeds, but you have a much higher mass to push at the start, and thus a smaller acceleration.
That's true, but there's no real theoretical limit to an Ion engines specific impulse, besides maybe the Planck energy, but even then a black hole maintains it's charge for a bit so maybe...
The practical limit is at what voltage you begin punching holes in your grid at too fast of a rate. ESA's DS4G engines has 10X the specific impulse of previous models. Further advances should increase that further.
Thanks Bruno. Solar sails may eventually reach high velocities, but would use an enormous amount of time to get to such velocity (I would think, as I would think the acceleration would be very low). So it's not clear to me what would be the best technology (of today) for reaching Alpha Centauri. There's always the lure of new technology right over the horizon, but I'm curious about what we could achieve right here and now if we put a little elbow grease on.
I've done a little research on sails and apparently a 1km^2 sail with a mass of 1kg at 1AU from the Sun has an acceleration of about 1g ! It will be tricky but I think I'll have a go at working out what velocity can be acheived from a Sun fly-by maneuver.
A problem with solar sails is that they would be ineffective past the heliopause. Additionally, to be really effective solar sails need to venture close to the Sun, where radiation makes it very dangerous for human travel (if not impossible).
I had also imagined that solar sails worked using the solar wind, but apparently this is not the case - the force due to radiation pressure is about 500 times greater than the force due to the solar wind. However, your general point that solar sails are only effective when close to a star is correct.
Have you seen the TV series "Mars Rising"? They explain an idea where a solar sail is accelerated by a laser parked in earth orbit and decelerated by another laser orbiting Mars. Seems like a good idea for a quick turn-around mission.
I suspect the power source would have to be nuclear. The cool thing is the laser spacecraft sent to Mars ahead of time could be pre-positioned and fully certified before the astronauts embarked.
Invest in companies that work towards improving propulsion like this and not in companies content to make more electronic toys. Think about it, which is bad ass? sitting on the bus playing on an iPad or putting a flag on Mars?
JonathanNeufeld 1 week ago
Kool !
HorizonDelta 2 weeks ago
Lol Sounds like GladOs (portal , portal 2 )
1998anirudh 2 weeks ago
Nah guys its not stephen hawking's wife, it's stephen hawking with a female voice setting....he's kinky like that :p
JHathuru 3 weeks ago
Who is the narrator? Dr. Stephanie Hawking?
paxpaul 1 month ago
OMG, it's the Enterprise computer's sister or cousin, and she sounds sexy.
dafranx 2 months ago
its att voice for text aloud etc. PDF reader programm that speaks the books for you. I love the program, there are better voices yet they still get some phonics wrong, haha.
RobMonty248 3 months ago
but well it blend
vaper192 5 months ago
that voice is the wife of stephen hawking's computer thingy
IncrediblyStupidName 5 months ago 4
this chic has an interesting accent. where is it from? =P
tsarrite 6 months ago
they need to increase the rate of thrust.. make something seriously powerfull.
griff5n 6 months ago
@griff5n 200kW ion engine is out there.
a10fjet 5 months ago
If all you fools can think about is the voice ,then you have no clue to what really going on in space, maybe you should pull your heads out of your asses...
BrianDonovan4 6 months ago
Unless you're a mute, try an actual voiceover next time. Can't stick around and listen to Microsoft Anna. Laters.
ReneeNme 7 months ago
i think ufo are real and true,and the government of united states of america should bought this technologies and not to sell to other part of countries of the world and it is very usefull in americas exploration and safety.
nagimayssa1 7 months ago
Why did you use this stupid voice for? Is it so hard to get a human to read it? Do you think anyone aactually likes this voice? lol. Bad.
EoN604 8 months ago
Microsoft Anna?
KeLRiotz 9 months ago
Too bad for the horrible synthetic voice. Why couldn't you find some humain to read your text ?
7cle 9 months ago 2
turtle wins the race on this one. outstanding
vh90278 11 months ago
it flys of at the end... THANK GOD!!!
mutelatedLEMON 11 months ago
the germans started the testing for these engines but it seemed his attept was going straite up if it was a space craft and if it wasnt a probe flying north and rasing altitube till u break the athmosphere get get u out of here
zooooom180 1 year ago
this ion engine should be tested planetary leaving the athomospere could be as easy as taking off
zooooom180 1 year ago
steven hawkings new voice is hot
Fleetfox10 1 year ago
@Fleetfox10 that's his wife moron. and you should see her breasts. mecha boobs *drools*
highrapture 11 months ago
what happens if you put your hand in the path of ions?
deaftodd 1 year ago
Thanks, GLaDOS :)
zws1922 1 year ago 4
How about inertial propulsion? Check out the CIP by Robert Cook.
Zoloft61 1 year ago
She is the Borg, resistance is futile
Taper0000 1 year ago 4
id tap that
Addamondes 1 year ago
This has been flagged as spam show
REAL Free energy technology exists!But the big oil corporations don't want that technology revealed,Get a motor that needs no gas or electric input at LT-MAGNET-MOTORdotCOM ,Join the energy revolution!
affluenceclm 1 year ago
let me guess,
autotalking program.
Set to female and robot option.
FUUUUUUUUK.....
Armigo91 1 year ago
all we need now is flux capasitators lol
nicko198718 1 year ago
in star wars its the tie fighter.
twin ion engine
mattstorm360 1 year ago
all i need now is a arc generator...
neverneen 1 year ago
Dawn is the name of theprobe
RecklessTornado 1 year ago
thers this probe using ion propulsion its going to the asteroid belt and its going to take like years to get there ION PROPULSION SUCKS! the probe is at 2:12
RecklessTornado 1 year ago
so if we used that on earth, so we wouldn't need a canister with gas cuz we could use air, and what about the neutralizer do we still will need it ?
panzarw 1 year ago
@panzarw the air act as an dielectric and will affect the electric phenomena, wouldn't it?
goodbyelonglive44 1 year ago
@goodbyelonglive44 huh ?
i meant that the air would be as the neutralizer.
panzarw 1 year ago
i'm not entirely certain but i would suspect that it would gain eventual propulsion - similar to hitting golf balls whilst sitting in a shopping cart; hit enough of 'em consistently (and) you might actually get somewhere.
partystartr 1 year ago
3:06
C-Fi
DoubleDutchBust 1 year ago
Ion build up? Ion charge? Please tell me what kind of charge is this.
Is a sudden burst of dangerous energy like some kind of laser?
Or a type of Ion cannon. But then that would require a hell of a lot of power.
G777GUN 1 year ago
@G777GUN use google
jorn1233 1 year ago
lol this is google translator's voice... type what you want.. and i mean anything and it will say it..
thajester175 1 year ago
This is a little off-topic but-
The Apollo moon missions were faked in a studio. To see a partial summary of hoax evidence, google "The Naked Scientists". In the "New Theories" section of the forum there's a thread entitled "Did We Land on the Moon?". The summary is on page 15 of the thread. It's the 7th post from the top.
Also, do a YouTube search on "MarsFaker".
Cosmored 1 year ago
@Cosmored no. they wernt. lol. any1 who believes that those were faked have a lump of shit for a brain.
yellowcard1494 1 year ago
@Cosmored
No it wasn't mythbusters proofed that to be wrong they really did land on the moon
Rodnehh 1 year ago
can this really work? i thought only blast was needed in order to create prepolsion!
OldSnakeKonovesis 1 year ago
@OldSnakeKonovesis Yes it works and it's in use.
urna55 1 year ago
@urna55 wow thats sooooo coool
OldSnakeKonovesis 1 year ago
soo ion thrusters will still use the hohmann transfer orbit to get to other planets?
slaughtahouze1 1 year ago
@slaughtahouze1 Don't try and be smart on the internet fuckface.
Hexxle 1 year ago
i had a project to do.. i wasn't sure so i asked.
do u have to attack me? did your mother not love you?
slaughtahouze1 1 year ago
Sounds like this is narrated by GLADOS.
Akumasama 1 year ago
Ion propulsion is cooler than detonating nuclear charges behind a ship. Is it possible to build a large multiple nozzle ion engine like this to place behind a more sizable ship? Say a ship that could take astronauts to mars?
ItsCoreyLynxxYall 1 year ago
I doubt that the quantity of thrust they state in the video is accurate. I have built home-made ion thrusters with nearly that much thrust. I would not be a bit suprised if these engines are not already in use for atmospheric aircraft.
teslacult 2 years ago
how long did that take you.
XANDERXXZ 1 year ago
Not very long considering i built it from tin foil and copper wire. You want a brush discharge but no arcing. I used a signal generator with a driver circuit powering a flyback transformer. Never breath large amounts of ozone, it's very bad for the lungs.
teslacult 1 year ago
oh yea and did the ion magnifier not interfeir with the arogn transfusion engine. i hope not, i got that once and had to deal with the eisen hower effect, damn that was somthing. Na im just kidding i have absolutly no idea what you are on about but thanks anyway.
XANDERXXZ 1 year ago
What ever buddy, just because your not smart enough to know what I'm talking about doesn't mean I'm making stuff up.
teslacult 1 year ago
I never said you were.
XANDERXXZ 1 year ago
My appologies.
teslacult 1 year ago
no probs and good luck with the transfusion hypernators.
XANDERXXZ 1 year ago
The electric grid erosion problem could be fixed by using magnetic feilds to accelerate the ions instead of solid state grids.
TheNuclearWatermelon 2 years ago
this chicks voice is hawt
envisionstar 2 years ago 55
@envisionstar lulz. so sektci
zeefang 1 year ago
@envisionstar that's not a real chick at all, I guess it's a software reader, like Adobe.
Metalloys 1 year ago
@Metalloys get out of town no way shes got to be real... ;-)
envisionstar 1 year ago
@envisionstar I think thats a computer talking. The computer sounds kinda hot tho.
drvonhoss 1 year ago
@envisionstar "chick"?
that voice was from some professor..not a "chick"...
goodbyelonglive44 1 year ago
@goodbyelonglive44 obviously.... dork
envisionstar 1 year ago
@envisionstar wife of stephen hawking:P
pureawesomeness2012 1 month ago
@pureawesomeness2012 hahahha sexxy
envisionstar 1 month ago
nice organ at the end..
Stereotuna 2 years ago 19
they could have used another robotic voice, besides HAL's Wife...jesus.
interesting though
bottle2lip 2 years ago 4
This video is GREAT!!! It puts me to sleep like no other
mattnaps 2 years ago
Great couple!
bomberfun1 2 years ago
This comment has received too many negative votes show
CRAP
Digadogup 2 years ago
a drocket engine? thats what I heard
DrewMC36 2 years ago 2
What a poor excuse for an ion craft
p3x797 2 years ago
I think the narrator is retarded
cascadevalley 2 years ago 4
ROFL!!!!! this is a classic! thanks to you, I laughed throughout the film so hard I started crying
zicer01 2 years ago
the narrator is electronic. Stupid retarded computerized person
C-omputer
R-etarding
A-nimated
P-erson
knoxarama 2 years ago 3
The narrator is probably text to speech software.
purplemutantas 2 years ago
this video is for astronauts, not humans
romanianskill 2 years ago
lol idiot :}}}
TheOfc100 2 years ago
it is dough int it den?
romanianskill 2 years ago
Ahhh the female computer voice from Portal. Ahhhh!
smithl3131 2 years ago 2
no..
TheLeetScape 2 years ago
Yeah I hate her too
platoon1993 2 years ago 2
It's called Microsoft Anna.
werandomnize 2 years ago 2
think of it this way... u might be able to go faster than light if it's on long enough :D
HotNoob 2 years ago
you might but that would be a fallacy, the closer to you get to C (the speed of light) I.E. .97C or so the energy required to accelerate faster increases exponentially,
Loehrer18 2 years ago
hmmn, well u don't actually need to hit the speed of light, u simply need to get past half the speed of light to break the barrier... *if u think about it, there might be some planets doing that in the universe already*
so anyway, take 2 objects going away from each other, and poof! u break the barrier! or supposed barrier.
plus, technology improves over the years.
HotNoob 2 years ago
Its not possible to go c speed with ion drive because exhaust corrodes.
platoon1993 2 years ago
you only need to go just over half the speed of light to see if Einstein is correct.
HotNoob 2 years ago
nop lol
adrastea99 2 years ago
yeah we know about 20 yrs on full trust that is
sprig3432 2 years ago
tie fighter
painsey 2 years ago
nice computer-generated voice
dalchimsky 2 years ago
This shit is primitive
m1ndcontroller 2 years ago
This has been flagged as spam show
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GreatSorcerer2 2 years ago
This was in Star Trek episode 56 when the ship was coming to the Enterprise by using ion propulsion.
MECHAPIXEL 2 years ago
magnific project yeah!!!
BOMBAIDEOLOGICA 2 years ago
Why the fuck would you use text speech, sounds like a freaking Star Trek Robot what the fuck.
Draxis32 2 years ago
Um, no. Star Trek computers sound normal. This sounds like shit, like Stephen Hawking.
200609 2 years ago 2
we might end up using ion engine to cruise in space and maneuver but to go at higher velocity, we need nuclear propultion or a photon accelerator
hispanicuscorpus 2 years ago
then we have a new gas that can be sold... this is absolutly the wrong direction
listen to schauberger and the world will be a nice place =)..
Rubrumn 2 years ago
I hate when people use this voice on there vids to seem cool, its soooo very annoying please stop!!
kppokoppk 2 years ago 3
Ok perhaps some one can answer this question for me. Understandable that ION engines are not yet capable of providing great amounts of thrust, but would there be any forseeable dange in using one in a planets atmospher specificaly our own?
brianjirvin 2 years ago
Hi,
Ion thrusters (or properly known as magnetoplasmadynamic ion thrusters) operate on Xenon, an inert substance. These are not dangerous, and it's essentially the same physics behind what is going on in those lightning orbs you can buy at junk stores :-P. It's unlikely they'll ever be used as primary propulsion sources, but they have tremendous potential for deep space exploration.
roni51154 2 years ago 2
So another words it will have no bad impact on the environment using one inside the atmosphere?
brianjirvin 2 years ago
you probably can't use it in the atmosphere :) the force is way to weak. About the same as a sheet of paper on your hand.They work by building up speed
DarkTemp0 2 years ago
Unfortunately, no. Ion propulsion can only work in a vacuum. The electrical charge of the ions is dissipated in an atmosphere.
rimian 2 years ago
wtf would you use text to speech for this?
kenanscott24 2 years ago
the voice sounds like a robot
borntobelegend 2 years ago
Looks like a Red Dwarf ( british comedy ) Engine .Good 4-SPACE ?
blackle4ps3 2 years ago
lol
computers speak funny
teguy5 3 years ago
her voice turns me on
Downfall101 3 years ago 3
if i understand this right, than the having an ionpropulsion engine big enough to lift a person would probably look like an enormous continuous lightning bolt exploding from the underside of the craft
ItsaUFOduh 3 years ago
I don't think it's for the start, but for 'cruising' in space
Civilizationfailed 3 years ago 3
Could be possible to generate more thrust using for example 100 to 1000 times more xenon than current ionic propellers??
AZURA888 3 years ago
hey is this different to the VASIMR engine?
ycats1000 3 years ago
VASIMR is up to tens times as fuel efficient, plus it puts out a lot more thrust. A mission to mars would actually take longer with an ion engine since it takes many months just to reach the necessary speed. However, a VASIMR engine, firing continuously could be just as fast as a chemical rocket. Only problem is, the technology is still in it's infancy. there will be an experimental probe launched sometime soon tho, either 2009 or 2010.
mmysama 3 years ago
yeah, i really liked the idea that nano tube cables could create an elevator to geo orbit, wish someone would hurry up and manufacture it-
i heard someone talking about VASIMR being used on the mining mission planned after the moon base gets set up-
ycats1000 3 years ago
VASIMR still has a lot less thrust than chemical rockets. It could take days, even weeks to reach the moon, whereas as chemical rocket can reach the moon in three days, and fires it's engines for three minutes. However, VASIMR would use a lot less fuel and could actually be cheaper when used for unmanned freight. It can't really be used for manned lunar missions since it would be in the van Allen belts for days while it completes a spiral orbit.
mmysama 3 years ago
Comment removed
ycats1000 3 years ago
wow i just looked at your profile, and you are laughing about 9/11...
you're also a fan of soviet union and CCP and anti american-
fuck you i hope you die you back stabbing pig
ycats1000 3 years ago
Wow, that comment has absolutely nothing at all to do with Ion propulsion whatsoever. Hell, it's not even the slightest bit relevant.
mmysama 3 years ago
i don't know...
on one hand you're friendly with americans when it suits you, then on the other you are stabbing them in the back and spreading hate-
and laughing at them when they get attacked...
how obscene, and here you are putting on a fake face pretending everythings fine
you are the opitome of weakness
ycats1000 3 years ago
Well, actually I was talking about the ones who think 9-11 was secretly a plot by their government but to each his own.
mmysama 3 years ago
that is true but why would someone try to even make a elevator to orbit, there is many risk for this project, it can be damaged which can risk lives, or be destoryed by debris or comets passing by at high speed
SeedLover101 2 years ago
the reason is the lower cost to get into orbit, since electric motors are far cheaper to run than rocket engines...
that means a person could haul all sorts of materials into space and get it into orbit from there-
concrete, metal, glass
you could build a rocket with ion engine and put that on there, then launch it from orbit, instead of burning a billion dollars of fuel and the risk isn't even as bad as current rocket technology, which is extremely risky
ycats1000 2 years ago
oh yeah your right, but this idea is far from real yet, we still have more imporatant issues right now, maybe one day this can be achieved, thanks
SeedLover101 2 years ago
actually carbon nanofibre yarn is being produced in australia and america right now....
as far as engineering projects go, many other projects like deep sean construction or the bridge to Gibralter are much more challenging-
it could happen in a decade, the only thing slowing all this technology down is theres no huge profits to be made....
once america starts mining the moon and bringing back untold new materials in large qantities things will change...
ycats1000 2 years ago
but the thrust of the ion engine is at this time too weak for a earth to space start... carlez2 did it good explan :-)
GreySilent88 3 years ago
sorry, Hayabusa is on the way to return to the earth by useing ion engine system in order to send its capsule filling of sample of surface of planete Itokawa on Oct.2010.
aokitfr 3 years ago
Ion engine system was already examined and used
by japanese planete survey equipment "Hayabusa".Hayabusa took some sample of surface of planete "Itokawa" and on the way to return to the earthe on 2008.10 by using ion engine system.
aokitfr 3 years ago
Please BrunoTheQuestionable, I need to feast on your superior knowledge.
Please share more information with me.
KH198 3 years ago
I would use RF4, but my computer is to slow. too many calculations.
+ I have not learned python scripting yet..
KH198 3 years ago
hehehehe all my friends say im REALLY naughty and flirty. hehe *maybe* a
aitruita 3 years ago
How much electricity would I need to lift 2 tonnes 1 metre off the ground? What size and weight would the engine be?
HazardAlertEvacuate 3 years ago
An ion engine isn't capable of lifting its own weight off the ground :(
BrunoTheQuestionable 3 years ago
how is not? what would thrust be if that was the case? NASA is using this.
punchdrunkatheist 3 years ago
the ion engines are only usable in space, where no resistance or force pulls at it. Although it only emits a few grams of thrust it will "burn" for a looooong time, and eventually a spacecraft will reach high speeds.
It will need conventional rockets to get it into space though.
Carlez2 3 years ago 4
I didn't think about that. Good point. I stand corrected.
punchdrunkatheist 3 years ago
i just think a ship with about 40 of these ion engines behind it would look awesome.
qpwnsall 3 years ago
whats keeping us from building a gigantic one?
qpwnsall 3 years ago
weight and power needed!!
patankar11 3 years ago
ablen español endejos
oricitrap 3 years ago
guy brilliant idea why not use this engine in cars, build a small engine that will move a car, and i know what your thinking how to conver this engine into mechanical power or torque power, that what make a car go up a hill.
malibu2001 3 years ago
The thrust of an ion thruster is very little- it's like standing on a skateboard and shooting a fire extinguisher- wouldn't be practical anywhere except in space, where momentum can grow without gravitational and frictional interference
jamanticus 3 years ago
And with a very low acceleration ... (years-scale)
supersetan2008 3 years ago
this are the same type o propultion iron man uses right. but is it posible to make it smaller?
cantiGibson 3 years ago
Um, no. Iron Man uses Repulsor Beam (Fictional) technology in his thrusters, as well as his hand cannons. They work in a way that repulses whatever is in front of it. In the same way you are pushed backward when you push on a kitchen counter while wearing socks, instead of the whole thing buckling forward, Iron Man moves, and the planet doesn't. It is uncertain how Repulsor Beams work, but it may be similar to Star Wars' Repulsorlift technology, used in speeders and starships for lift. TIEs Cont
SchizoFilms 3 years ago
I heard this way of propulsion came from an Episode of Star Trek TOS.
I've known about that for some time and I have designed this engine into space craft that I have designed, just my little aritsts conception of the future.
Oh, and I have no idea what you've been talking about in other comments lol
Tomtheflyboy 3 years ago
I really enjoy watching videos like this. Gives my little mind something to think about. :)
henrihead 4 years ago 2
What about the Bussard Interstellar Ramjet mentioned in Carl Sagan's book, COSMOS?
wallasky 4 years ago
One viable option could be a combination probably of more propulsion types for interstellar travel. Eg a sail for the initial push close to the sun and deceleration, electric engines powered by nuclear fission (or fusion if it is in the future). I
baley7 4 years ago
I had the same thought. Perhaps with some close flybys of the Sun to boost velocity using the sail, and a few planetary gravitational assist maneuvers. The ion engine would also be useful for course control while in the solar system.
BrunoTheQuestionable 4 years ago
Cool. It seems that if we wanted to send an unmanned mission to the nearest star using todays technology, this would be the way to go. But how long (centuries, millenia?) would that take? (And how realistic is it?)
trondreitan 4 years ago 2
You would have to take a fission reactor along to power the ion engine, but it seems do-able. It would take quite a while though. I believe solar sails can achieve much higher velocity. I'm sure we could launch something in 10 years time that would overtake anything we launch now.
BrunoTheQuestionable 4 years ago
To Trondreitan,
It depends on what the maximum thrust is for this engine. I have done calculations for going to Alpha Centauri, our closest neighboring star system. Alpha Centauri is located 4.1 light years away from our Solar System; thus, with a constant acceleration resulting in an average velocity of 50% of the speed of light (.5c) it would take us 28 years to get there.
KickAssClown 4 years ago
Thanks both to you KickAssClown and Bruno. But can we really make anything that reaches 0.5c on a distance of 4 lyr with todays technology?
How much time would it take to accelerate to that velocity? (PS: Don't use to much time answering this. This is pretty idle speculation from my side.)
trondreitan 4 years ago
For a rocket engine, to maintain fuel efficiency it is necessary to keep the maximum spacecraft velocity below the exhaust velocity. Take as an example a spacecraft moving away from us at a speed equal to the exhaust velocity - recently expelled fuel will be stationary relative to us - it contributes zero momentum overall to the spacecraft ! The momentum gained when it was expelled is equal to the momentum absorbed by the fuel earlier in the flight.
BrunoTheQuestionable 4 years ago
The exhaust velocity for an ion engine is about 100km/s giving a journey time to the nearest star of at least 10,000 years.
BrunoTheQuestionable 4 years ago
I disagree. Supposed the spacecraft travels at speed v away from us and has mass m. It's momentum is m*v, if say half it's mass remains stationary, you have 0*m/2+v2*m/2=m*v (conservation of momentum, where v2 is the speed of the craft) => v2=2*v, the speed away from us doubled !. "maximum spacecraft velocity" dosen't exist, any rocket propulsion system can reach any speed if you run it long enough :).
What determines performance is Isp.
helixdq 4 years ago
You're correct that there is no maximum spacecraft velocity, but in order for the spacecraft to reach a velocity in excess of the exhaust velocity it is necessary to carry a very large mass of fuel at launch. The overall fuel efficiency drops rapidly.
BrunoTheQuestionable 4 years ago
I just ran a few quick simulations for a payload of 100kg and an exhaust velocity of 100km/s.
100kg fuel: final velocity = 68km/s
1000kg fuel: final velocity = 233km/s
10000kg fuel: final velocity = 459km/s
100000kg fuel: final velocity = 687km/s
BrunoTheQuestionable 4 years ago
Yes i understand what you meant. It's not that the engine itself is less performant at higher speeds, but you have a much higher mass to push at the start, and thus a smaller acceleration.
helixdq 4 years ago
That's true, but there's no real theoretical limit to an Ion engines specific impulse, besides maybe the Planck energy, but even then a black hole maintains it's charge for a bit so maybe...
The practical limit is at what voltage you begin punching holes in your grid at too fast of a rate. ESA's DS4G engines has 10X the specific impulse of previous models. Further advances should increase that further.
subach 4 years ago
Thanks Bruno. Solar sails may eventually reach high velocities, but would use an enormous amount of time to get to such velocity (I would think, as I would think the acceleration would be very low). So it's not clear to me what would be the best technology (of today) for reaching Alpha Centauri. There's always the lure of new technology right over the horizon, but I'm curious about what we could achieve right here and now if we put a little elbow grease on.
trondreitan 4 years ago
I've done a little research on sails and apparently a 1km^2 sail with a mass of 1kg at 1AU from the Sun has an acceleration of about 1g ! It will be tricky but I think I'll have a go at working out what velocity can be acheived from a Sun fly-by maneuver.
BrunoTheQuestionable 4 years ago
A problem with solar sails is that they would be ineffective past the heliopause. Additionally, to be really effective solar sails need to venture close to the Sun, where radiation makes it very dangerous for human travel (if not impossible).
heroman9900 4 years ago
I had also imagined that solar sails worked using the solar wind, but apparently this is not the case - the force due to radiation pressure is about 500 times greater than the force due to the solar wind. However, your general point that solar sails are only effective when close to a star is correct.
BrunoTheQuestionable 4 years ago
Have you seen the TV series "Mars Rising"? They explain an idea where a solar sail is accelerated by a laser parked in earth orbit and decelerated by another laser orbiting Mars. Seems like a good idea for a quick turn-around mission.
joemcardin 4 years ago
Interesting idea, but what is the power source for the laser ? It would require a lot of power.
BrunoTheQuestionable 4 years ago
I suspect the power source would have to be nuclear. The cool thing is the laser spacecraft sent to Mars ahead of time could be pre-positioned and fully certified before the astronauts embarked.
joemcardin 4 years ago
I agree
urnman89 3 years ago
Correction - the force due to radiation pressure is about 5000 times greater than the force due to the solar wind.
BrunoTheQuestionable 4 years ago