Jwst launches in less than 3 hours

Quote from: Bullwinkle on February 26, 2022, 01:19:59 AM

Quote from: Heiwa on February 26, 2022, 12:59:34 AM

But what about the momentum flap?

Sounds like a sex thing.

Not at all! It is a rudder that steers a spaceship in a universe full of photons originating from the Sun. Just flap it and you turn right/left/up/down and arrive at your destination, so you can stop and dock. How the flap stops and reverses you, is not clear. It is secret!

You talk some real crap. 

Heiwa is having tremendous fun.   
So are all of you.
Just enjoy the game.

Actually the JWST lost its momentum flap just after take off - some NASA/ESA expert/engineer had forgotten to secure it - so JWST took off in the wrong direction and is now on the way to the end of the universe ..

Quote from: Bullwinkle on February 26, 2022, 01:19:59 AM

Quote from: Heiwa on February 26, 2022, 12:59:34 AM

But what about the momentum flap?

Sounds like a sex thing.

Not at all! It is a rudder that steers a spaceship in a universe full of photons originating from the Sun.

No.  It's closer to a trim tab that helps stabilize the orientation of the telescope.

Actually the JWST lost its momentum flap just after take off - some NASA/ESA expert/engineer had forgotten to secure it - so JWST took off in the wrong direction and is now on the way to the end of the universe ..

What's it like to be so smart?

Quote from: Bullwinkle on February 26, 2022, 01:19:59 AM

Quote from: Heiwa on February 26, 2022, 12:59:34 AM

But what about the momentum flap?

Sounds like a sex thing.

Not at all! It is a rudder that steers a spaceship in a universe full of photons originating from the Sun. Just flap it and you turn right/left/up/down and arrive at your destination, so you can stop and dock. How the flap stops and reverses you, is not clear. It is secret!

The momentum flap is a noun, not a verb. The flap doesn't flap.

The "trim tab", "momentum flap", whatever you want to call it, is not new tech. It's used to aid stabilization on the GOES satellites as well.

Performance analysis of the GOES trim tab solar pressure torque angular momentum control

The GOES I/M series of geostationary weather satellites are 3-axis stabilized and incorporate an optical trim surface, or 'trim tab', to balance solar radiation pressure torque between the south moment arm, formed by a single solar array, and the north moment arm, formed by a solar sail on an extended boom. This design minimizes the need for active roll/yaw momentum management from thrusters or magnetic dipoles and provides margin for uncertainties and changes such as center of mass shift and degradation of surface optical properties. The trim tab has one rotational degree of freedom and is actuated vie open loop ground command to a motor on the rotation axis. Normal operational procedure is to command a small incremental trim tab slew daily to track the change in north/south solar radiation pressure torque with Sun declination. Proper management of the trim tab is critical to spacecraft roll/yaw pointing performance and the open loop design of the system requires sophisticated ground based algorithms to determine trim tab position error and developed a daily commanding profile. Flight experience with the GOES-8 and GOES-9 spacecraft has proven the feasibility of the trim tab design and has led to refinement of the ground based trim tab analysis algorithm. This paper summarizes the performance of the trim tab roll/yaw momentum control system and describes analysis methods developed by the GOES mission operations team to support trim tab operations.

Attitude Stabilization and Control Using Trim Tabs for Spacecraft with Sun Shields

Solar radiation torque harnessed by large exposed surfaces such as sun shields and solar panels is of major concern for spacecraft operating at GEO and L2 orbits. The geometry and optical properties of these surfaces need to be designed to ensure attitude stability for the entire mission duration while mitigating solar radiation torque and thus momentum build-up. Using a conceptual spacecraft with a large sun shield, which contains similar characteristics of the James Webb Space Telescope, the relationships among the sun angle, sun shield geometry, surface optical properties, and vehicle center of mass are examined to define conditions that are required to provide passive attitude stability and to minimize solar radiation torque. Due primarily to optical property degradation over time, finding optimum sun shield properties that can be effective for the entire mission duration is not feasible with fixed sun shield geometry. It is shown in this paper that trim tabs can be employed effectively to augment the stability and to help maintain minimal solar radiation torque over the entire mission duration. The process of sizing the trim tabs and selecting their optical properties is presented to conduct these functions. A linearized control law for the trim tab is developed to generate commanded control torque by adjusting its deflection angles. Closed-loop attitude control examples using the conceptual spacecraft are provided to illustrate the process of employing the trim tabs to neutralize the solar radiation torque generated by the sun shield and to demonstrate the attitude stabilization capability of the trim tab control.

Quote from: Heiwa on February 26, 2022, 02:46:54 AM

Quote from: Bullwinkle on February 26, 2022, 01:19:59 AM

Quote from: Heiwa on February 26, 2022, 12:59:34 AM

But what about the momentum flap?

Sounds like a sex thing.

Not at all! It is a rudder that steers a spaceship in a universe full of photons originating from the Sun. Just flap it and you turn right/left/up/down and arrive at your destination, so you can stop and dock. How the flap stops and reverses you, is not clear. It is secret!

The momentum flap is a noun, not a verb. The flap doesn't flap.

The "trim tab", "momentum flap", whatever you want to call it, is not new tech. It's used to aid stabilization on the GOES satellites as well.

Is it?

sex

sex

religion

Quote from: Stash on February 26, 2022, 11:41:41 AM

Quote from: Heiwa on February 26, 2022, 02:46:54 AM

Quote from: Bullwinkle on February 26, 2022, 01:19:59 AM

Quote from: Heiwa on February 26, 2022, 12:59:34 AM

But what about the momentum flap?

Sounds like a sex thing.

Not at all! It is a rudder that steers a spaceship in a universe full of photons originating from the Sun. Just flap it and you turn right/left/up/down and arrive at your destination, so you can stop and dock. How the flap stops and reverses you, is not clear. It is secret!

The momentum flap is a noun, not a verb. The flap doesn't flap.

The "trim tab", "momentum flap", whatever you want to call it, is not new tech. It's used to aid stabilization on the GOES satellites as well.

Is it?

Does the Heiwabot™ not know how to read anymore?

The momentum flap is a noun, not a verb. The flap doesn't flap.

The "trim tab", "momentum flap", whatever you want to call it, is not new tech. It's used to aid stabilization on the GOES satellites as well.

Performance analysis of the GOES trim tab solar pressure torque angular momentum control

The GOES I/M series of geostationary weather satellites are 3-axis stabilized and incorporate an optical trim surface, or 'trim tab', to balance solar radiation pressure torque between the south moment arm, formed by a single solar array, and the north moment arm, formed by a solar sail on an extended boom. This design minimizes the need for active roll/yaw momentum management from thrusters or magnetic dipoles and provides margin for uncertainties and changes such as center of mass shift and degradation of surface optical properties. The trim tab has one rotational degree of freedom and is actuated vie open loop ground command to a motor on the rotation axis. Normal operational procedure is to command a small incremental trim tab slew daily to track the change in north/south solar radiation pressure torque with Sun declination. Proper management of the trim tab is critical to spacecraft roll/yaw pointing performance and the open loop design of the system requires sophisticated ground based algorithms to determine trim tab position error and developed a daily commanding profile. Flight experience with the GOES-8 and GOES-9 spacecraft has proven the feasibility of the trim tab design and has led to refinement of the ground based trim tab analysis algorithm. This paper summarizes the performance of the trim tab roll/yaw momentum control system and describes analysis methods developed by the GOES mission operations team to support trim tab operations.

Attitude Stabilization and Control Using Trim Tabs for Spacecraft with Sun Shields

Solar radiation torque harnessed by large exposed surfaces such as sun shields and solar panels is of major concern for spacecraft operating at GEO and L2 orbits. The geometry and optical properties of these surfaces need to be designed to ensure attitude stability for the entire mission duration while mitigating solar radiation torque and thus momentum build-up. Using a conceptual spacecraft with a large sun shield, which contains similar characteristics of the James Webb Space Telescope, the relationships among the sun angle, sun shield geometry, surface optical properties, and vehicle center of mass are examined to define conditions that are required to provide passive attitude stability and to minimize solar radiation torque. Due primarily to optical property degradation over time, finding optimum sun shield properties that can be effective for the entire mission duration is not feasible with fixed sun shield geometry. It is shown in this paper that trim tabs can be employed effectively to augment the stability and to help maintain minimal solar radiation torque over the entire mission duration. The process of sizing the trim tabs and selecting their optical properties is presented to conduct these functions. A linearized control law for the trim tab is developed to generate commanded control torque by adjusting its deflection angles. Closed-loop attitude control examples using the conceptual spacecraft are provided to illustrate the process of employing the trim tabs to neutralize the solar radiation torque generated by the sun shield and to demonstrate the attitude stabilization capability of the trim tab control.

According the JWST experts photons (light) from the Sun affect the direction and balance of the space telescope  and the momentum flap trim tab ensures that direction and balance are maintained. I simply do not believe it. I consider the complete JWST a hoax!

According the JWST experts photons (light) from the Sun affect the direction and balance of the space telescope  and the momentum flap trim tab ensures that direction and balance are maintained. I simply do not believe it. I consider the complete JWST a hoax!

Has more to do with the reaction wheels and thrusters. Try and keep up. What you "consider" matters not.

Quote from: Heiwa on February 28, 2022, 12:49:41 AM

According the JWST experts photons (light) from the Sun affect the direction and balance of the space telescope  and the momentum flap trim tab ensures that direction and balance are maintained. I simply do not believe it. I consider the complete JWST a hoax!

Has more to do with the reaction wheels and thrusters. Try and keep up. What you "consider" matters not.

It matters to you, apparently.

Quote from: Stash on February 28, 2022, 01:28:55 AM

Quote from: Heiwa on February 28, 2022, 12:49:41 AM

According the JWST experts photons (light) from the Sun affect the direction and balance of the space telescope  and the momentum flap trim tab ensures that direction and balance are maintained. I simply do not believe it. I consider the complete JWST a hoax!

Has more to do with the reaction wheels and thrusters. Try and keep up. What you "consider" matters not.

It matters to you, apparently.

The only thing that matters is continually showing that this Heiwabot is and idiot.

I simply do not believe it. I consider the complete JWST a hoax!

After reading all of your nonsense and clear attempts to troll, I consider your persona to be a hoax. Please come back with a genuine one.

According the JWST experts photons (light) from the Sun affect the direction and balance of the space telescope  and the momentum flap trim tab ensures that direction and balance are maintained. I simply do not believe it. I consider the complete JWST a hoax!

What part do you not believe?  Do you not believe that photons can impart momentum on objects?

Quote from: Heiwa on February 28, 2022, 12:49:41 AM

According the JWST experts photons (light) from the Sun affect the direction and balance of the space telescope  and the momentum flap trim tab ensures that direction and balance are maintained. I simply do not believe it. I consider the complete JWST a hoax!

What part do you not believe?  Do you not believe that photons can impart momentum on objects?

Photons have no mass and can only heat you up. They are pretty funny. They move at the speed of light. Imagine that. I see plenty photons every morning, when the Sun rises at the horizon outside my window. The photons come from the Sun, etc.

Quote from: markjo on February 28, 2022, 02:11:05 PM

Quote from: Heiwa on February 28, 2022, 12:49:41 AM

According the JWST experts photons (light) from the Sun affect the direction and balance of the space telescope  and the momentum flap trim tab ensures that direction and balance are maintained. I simply do not believe it. I consider the complete JWST a hoax!

What part do you not believe?  Do you not believe that photons can impart momentum on objects?

Photons have no mass and can only heat you up. They are pretty funny. They move at the speed of light. Imagine that. I see plenty photons every morning, when the Sun rises at the horizon outside my window. The photons come from the Sun, etc.

My goodness, the Heiwabot is ignorant as all get-out.

Experiment: Laser light (photons) perturbs (moves) an object in a vacuum:

Photons have no mass and can only heat you up.

Photons have no mass, but they do have momentum.  That's the sort of thing that an engineer is supposed to know.

Quote from: Heiwa on February 28, 2022, 06:02:54 PM

Photons have no mass and can only heat you up.

Photons have no mass, but they do have momentum.  That's the sort of thing that an engineer is supposed to know

Thanks, of course momentum of a photon equal to the product of its mass (zero) and velocity (that of light), so, when you see a photon approaching, you better put on your sun lotion and glasses, if you are in vacuum space at L2. Topic is of course the JWST allegedly orbiting L2 being exposed to sun light pushing it away from L2, but a momentum flap or trim tab on JWST fixes it easily, i.e. pushes JWST back into orbit. Isn't it funny? Some crazy people believe it.  Anyway, I really look forward to the first JWST pictures of the universe taken from L2 orbit. I wonder if they are different from what I see from my window.

Quote from: markjo on February 28, 2022, 06:45:12 PM

Quote from: Heiwa on February 28, 2022, 06:02:54 PM

Photons have no mass and can only heat you up.

Photons have no mass, but they do have momentum.  That's the sort of thing that an engineer is supposed to know

Thanks, of course momentum of a photon equal to the product of its mass (zero) and velocity (that of light), so, when you see a photon approaching, you better put on your sun lotion and glasses, if you are in vacuum space at L2. Topic is of course the JWST allegedly orbiting L2 being exposed to sun light pushing it away from L2, but a momentum flap or trim tab on JWST fixes it easily, i.e. pushes JWST back into orbit. Isn't it funny? Some crazy people believe it.  Anyway, I really look forward to the first JWST pictures of the universe taken from L2 orbit. I wonder if they are different from what I see from my window.

It's good that the Heiwabot has come around to reality and agrees that photons can impart momentum on objects. The bot is actually learning. It must of had an AI update or something.

And I'm sure that the images that come back from JWST will look exactly like what one can see out their window. Just like all other telescope in the world produce images just like what one can see from their window. Come to think of it, why do we even have telescopes? All we need are windows.

Quote from: Heiwa on February 28, 2022, 09:44:40 PM

Quote from: markjo on February 28, 2022, 06:45:12 PM

Quote from: Heiwa on February 28, 2022, 06:02:54 PM

Photons have no mass and can only heat you up.

Photons have no mass, but they do have momentum.  That's the sort of thing that an engineer is supposed to know

Thanks, of course momentum of a photon equal to the product of its mass (zero) and velocity (that of light), so, when you see a photon approaching, you better put on your sun lotion and glasses, if you are in vacuum space at L2. Topic is of course the JWST allegedly orbiting L2 being exposed to sun light pushing it away from L2, but a momentum flap or trim tab on JWST fixes it easily, i.e. pushes JWST back into orbit. Isn't it funny? Some crazy people believe it.  Anyway, I really look forward to the first JWST pictures of the universe taken from L2 orbit. I wonder if they are different from what I see from my window.

It's good that the Heiwabot has come around to reality and agrees that photons can impart momentum on objects. The bot is actually learning. It must of had an AI update or something.

And I'm sure that the images that come back from JWST will look exactly like what one can see out their window. Just like all other telescope in the world produce images just like what one can see from their window. Come to think of it, why do we even have telescopes? All we need are windows.

No, photons cannot impart momentum on objects. Photons can only impart energy on objects in the form of heat, i.e. photons warm up objects, e.g. me when I see the Sun rise outside my window.

No, photons cannot impart momentum on objects. Photons can only impart energy on objects in the form of heat, i.e. photons warm up objects, e.g. me when I see the Sun rise outside my window.

Hoax persona = hoax info.

Photons have momentum.

Typical hoax nonsense spewed by Heiwa. As always, disregard.

Quote from: Stash on March 01, 2022, 01:20:11 AM

Quote from: Heiwa on February 28, 2022, 09:44:40 PM

Quote from: markjo on February 28, 2022, 06:45:12 PM

Quote from: Heiwa on February 28, 2022, 06:02:54 PM

Photons have no mass and can only heat you up.

Photons have no mass, but they do have momentum.  That's the sort of thing that an engineer is supposed to know

Thanks, of course momentum of a photon equal to the product of its mass (zero) and velocity (that of light), so, when you see a photon approaching, you better put on your sun lotion and glasses, if you are in vacuum space at L2. Topic is of course the JWST allegedly orbiting L2 being exposed to sun light pushing it away from L2, but a momentum flap or trim tab on JWST fixes it easily, i.e. pushes JWST back into orbit. Isn't it funny? Some crazy people believe it.  Anyway, I really look forward to the first JWST pictures of the universe taken from L2 orbit. I wonder if they are different from what I see from my window.

It's good that the Heiwabot has come around to reality and agrees that photons can impart momentum on objects. The bot is actually learning. It must of had an AI update or something.

And I'm sure that the images that come back from JWST will look exactly like what one can see out their window. Just like all other telescope in the world produce images just like what one can see from their window. Come to think of it, why do we even have telescopes? All we need are windows.

No, photons cannot impart momentum on objects. Photons can only impart energy on objects in the form of heat, i.e. photons warm up objects, e.g. me when I see the Sun rise outside my window.

Well the Heiwabot is wrong again. I literally posted a video demonstrating photons imparting momentum on an object. It's right in front of your eyes. Just like objects outside the window.

What evidence might the bot have to say the contrary? Oh yeah, none. The Heiwabot never deals in facts, I forgot.

Why do we need any telescopes if we can just look out our windows?

Quote from: Heiwa on March 01, 2022, 03:02:32 AM

Quote from: Stash on March 01, 2022, 01:20:11 AM

Quote from: Heiwa on February 28, 2022, 09:44:40 PM

Quote from: markjo on February 28, 2022, 06:45:12 PM

Quote from: Heiwa on February 28, 2022, 06:02:54 PM

Photons have no mass and can only heat you up.

Photons have no mass, but they do have momentum.  That's the sort of thing that an engineer is supposed to know

Thanks, of course momentum of a photon equal to the product of its mass (zero) and velocity (that of light), so, when you see a photon approaching, you better put on your sun lotion and glasses, if you are in vacuum space at L2. Topic is of course the JWST allegedly orbiting L2 being exposed to sun light pushing it away from L2, but a momentum flap or trim tab on JWST fixes it easily, i.e. pushes JWST back into orbit. Isn't it funny? Some crazy people believe it.  Anyway, I really look forward to the first JWST pictures of the universe taken from L2 orbit. I wonder if they are different from what I see from my window.

It's good that the Heiwabot has come around to reality and agrees that photons can impart momentum on objects. The bot is actually learning. It must of had an AI update or something.

And I'm sure that the images that come back from JWST will look exactly like what one can see out their window. Just like all other telescope in the world produce images just like what one can see from their window. Come to think of it, why do we even have telescopes? All we need are windows.

No, photons cannot impart momentum on objects. Photons can only impart energy on objects in the form of heat, i.e. photons warm up objects, e.g. me when I see the Sun rise outside my window.

Well the Heiwabot is wrong again. I literally posted a video demonstrating photons imparting momentum on an object. It's right in front of your eyes. Just like objects outside the window.

What evidence might the bot have to say the contrary? Oh yeah, none. The Heiwabot never deals in facts, I forgot.

Why do we need any telescopes if we can just look out our windows?

The evidence is the Sun and it's light (photons). It doesn't impart momentum! It just heats up objects it encounters. After that the photons are gone! But don't ask me how the Sun works. Fusion? No. What is the mass of the Sun? I have no idea! I think planet Earth orbits the Sun as seen from my window and, when doing so, Earth rotates 360°/24 hrs, so there are days/nights. I know religious people have other ideas but I prefer what I see from my window.

Thanks, of course momentum of a photon equal to the product of its mass (zero) and velocity (that of light)...

How are you an engineer?  Photons have no mass, but they have energy which is equivalent to mass. 

 

... so, when you see a photon approaching...

Anyway, I really look forward to the first JWST pictures of the universe taken from L2 orbit. I wonder if they are different from what I see from my window.

I promise you that they will be.

Quote from: Stash on March 01, 2022, 10:49:15 AM

Quote from: Heiwa on March 01, 2022, 03:02:32 AM

Quote from: Stash on March 01, 2022, 01:20:11 AM

Quote from: Heiwa on February 28, 2022, 09:44:40 PM

Quote from: markjo on February 28, 2022, 06:45:12 PM

Quote from: Heiwa on February 28, 2022, 06:02:54 PM

Photons have no mass and can only heat you up.

Photons have no mass, but they do have momentum.  That's the sort of thing that an engineer is supposed to know

Thanks, of course momentum of a photon equal to the product of its mass (zero) and velocity (that of light), so, when you see a photon approaching, you better put on your sun lotion and glasses, if you are in vacuum space at L2. Topic is of course the JWST allegedly orbiting L2 being exposed to sun light pushing it away from L2, but a momentum flap or trim tab on JWST fixes it easily, i.e. pushes JWST back into orbit. Isn't it funny? Some crazy people believe it.  Anyway, I really look forward to the first JWST pictures of the universe taken from L2 orbit. I wonder if they are different from what I see from my window.

It's good that the Heiwabot has come around to reality and agrees that photons can impart momentum on objects. The bot is actually learning. It must of had an AI update or something.

And I'm sure that the images that come back from JWST will look exactly like what one can see out their window. Just like all other telescope in the world produce images just like what one can see from their window. Come to think of it, why do we even have telescopes? All we need are windows.

No, photons cannot impart momentum on objects. Photons can only impart energy on objects in the form of heat, i.e. photons warm up objects, e.g. me when I see the Sun rise outside my window.

Well the Heiwabot is wrong again. I literally posted a video demonstrating photons imparting momentum on an object. It's right in front of your eyes. Just like objects outside the window.

What evidence might the bot have to say the contrary? Oh yeah, none. The Heiwabot never deals in facts, I forgot.

Why do we need any telescopes if we can just look out our windows?

The evidence is the Sun and it's light (photons). It doesn't impart momentum!

How is the sun & photons "evidence"? There is a demonstration a few posts up where light imparts momentum on an object. The object moves when a laser light is pointed at it. It doesn't get any clearer than that. That would be considered evidence. There is no evidence presented here to the contrary.

It just heats up objects it encounters. After that the photons are gone! But don't ask me how the Sun works. Fusion? No. What is the mass of the Sun? I have no idea! I think planet Earth orbits the Sun as seen from my window and, when doing so, Earth rotates 360°/24 hrs, so there are days/nights. I know religious people have other ideas but I prefer what I see from my window.

Like I asked, do we even need any telescopes anywhere if all one needs is to look out a window?

How is the sun & photons "evidence"? There is a demonstration a few posts up where light imparts momentum on an object. The object moves when a laser light is pointed at it. It doesn't get any clearer than that. That would be considered evidence. There is no evidence presented here to the contrary.
Like I asked, do we even need any telescopes anywhere if all one needs is to look out a window?

I don't need a telescope to see the Sun rise at the horizon from my window. If I used a telescope for it, the telescope would be destroyed. Only complete idiots use telescopes to watch the Sun. But I have a strong flash light to see objects in the dark. I can assure you that the objects do not move, when I flash light on them. Anyway, the JWST (topic) orbiting L2 should soon be able to flash pictures of the end/beginning of the universe back to Earth. I wonder what they will look like.

Quote from: Stash on March 01, 2022, 04:51:42 PM

How is the sun & photons "evidence"? There is a demonstration a few posts up where light imparts momentum on an object. The object moves when a laser light is pointed at it. It doesn't get any clearer than that. That would be considered evidence. There is no evidence presented here to the contrary.
Like I asked, do we even need any telescopes anywhere if all one needs is to look out a window?

I don't need a telescope to see the Sun rise at the horizon from my window. If I used a telescope for it, the telescope would be destroyed. Only complete idiots use telescopes to watch the Sun. But I have a strong flash light to see objects in the dark. I can assure you that the objects do not move, when I flash light on them. Anyway, the JWST (topic) orbiting L2 should soon be able to flash pictures of the end/beginning of the universe back to Earth. I wonder what they will look like.

No one has ever looked at the Sun through a telescope before, ever? Ever heard of a solar filter? It typically looks like this:



Has any one ever seen an eclipse through a telescope or camera lens? 
Your bot really is quite ignorant.

If you watched the video, you would understand why a strong flashlight doesn't have the photon strength to move an object. But with a laser, the demonstration showed the light moving an abject plain as day. See, here it is, right before your very eyes:



Considering your bot has nothing contrary to that evidence, your bot remains an idiot.

I am sorry that my strong flashlight didn't have the photon strength to move an object. Where can I get a stronger one?
I thought all photons are same - no mass but speed of light. Only frequency/rotation differs, i.e. mysterious heat/energy content.
But photons can physically move JWST upon contact, according NASA/ESA experts. I doubt it. Photons hitting JWST either bounce off or heats it up.