What is the Universe expanding into..

[TNT]

Earth orbit - not back to Earth itself. I don't know the intricacies of refuelling the JWST. Might need some human intervention and a month long trip there and then back might be problematic in that case

answer was for S7 #9333 - your idea is genius!

//

 

[TNT]

Bonsai, stick to preamplifiers, your area of engineering competence.

As a system engineer I know that NASA has no plan whatsoever for the JWST when it runs down in about 10 years time. 🙄

They are planning the next mission:

https://www.bbc.co.uk/news/science-environment-61155725

The unfortunately named 7th. planet Uranus. It is an oddball.

haha - you dont know squat what NASA i planning 🙂

stick to math ;-)

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[Galu]

The unfortunately named 7th. planet Uranus. It is an oddball.

It's worth attaching an image of the rings around Uranus:

 

[Bonsai]

Bonsai, stick to preamplifiers, your area of engineering competence.

As a system engineer I know that NASA has no plan whatsoever for the JWST when it runs down in about 10 years time. 🙄

They are planning the next mission:

https://www.bbc.co.uk/news/science-environment-61155725

The unfortunately named 7th. planet Uranus. It is an oddball.

Look here Steve, I'll have you know that I'm a bona-fide genius. Yessir, I'm filled with geniuseness and system engineering nous.

 

[Bonsai]

It's worth attaching an image of the rings around Uranus:

🤣🤣🤣🤣

 

[Bonsai]

I have no idea what we are looking at here.

But here it is:

View attachment 1056817

But Weird, huh?

You need to weed yor wall!

 

[Galu]

He's already driving us up the wall! 😍

 

[system7]

It's not my wall! It's my neighbour's wall. I am currently growing Snapdragons in my Greenhouse.

https://en.wikipedia.org/wiki/Antirrhinum

I like Botany and all that.

But my neighbour seems to be exceeding my expectations with his wild Snapdragons. Very vivid colours.

Of course, I know the botanically correct name is Antirrhinum. Latin or Greek or something.

My neighbour wouldn't know a Snapdragon from a hole in the ground. But I do.

 

[Disco-Pete]

Look here Steve, I'll have you know that I'm a bona-fide genius. Yessir, I'm filled with geniuseness and system engineering nous.

I could in fact be a genius and not know what “nous” means.🙂

 

[Galu]

The unfortunately named 7th. planet Uranus. It is an oddball.

Whereas the other planets revolve round the Sun like spinning tops, Uranus is more like a rolling ball going round the Sun.

Rather than the Uranian axis of rotation pointing 'up' like those of the other planets, it points along the ecliptic plane.

It is possible that a large protoplanet smashed into Uranus billions of years ago and caused its extreme axial tilt.

 

[Bonsai]

I could in fact be a genius and not know what “nous” means.🙂

English slang for knowledge or smarts 😉

 

[Disco-Pete]

pronounced?

 

[Galu]

I am currently growing Snapdragons in my Greenhouse.

Don't let anyone say you're away with the fairies, Steve! 😀

 

[system7]

Galu, surely you played with Snapdragons as a Child?

Engages Language sub-processor whilst disengaging Mathematical sub-processor to save power:

Surely Nous is the French word for "We"? 😀

I also notice that diyAudio requires a member name and password. It also currently requires one to prove one is not a Robot!

I think I can pass the Turing Test. How easy is THAT! 😎

 

[Galu]

Galu, surely you played with Snapdragons as a Child?

Every Christmas Steve, every darned Christmas!

 

[mchambin]

That would have been why NASA put "(and Moon)" in brackets - it is a but a bit player in the JWST game!

I had a closer look at the James Webb Telescope orbiting around L2.
They call this "halo" orbit.

This is of a very different nature as usual orbiting by a satellite.
L2 has no mass to attract JSWT. As a matter of fact L2 is repulsive, any object not exactly at L2 is pushed away and pushed harder getting further away. So it must be coarsed to stay around L2.
Here comes "halo" orbits. I found no defintion, I presume they are orbits asking for a minimum of fuel. The size seems about the size of the Moon orbit around the Earth and not circular at all, it is Lissajou shapes, sort of figure eights I think.
Some data:
L2 is orbiting the Earth near circular
at 1 500 000 km with a 1 year period.
The Moon is orbiting the Earth near circular.
at 385 000 km with a 29 days period.
JWST is "halo" orbiting L2 Lissajou figures.

Additional obscure ;-) data to me:
Because L2 is pretty far from Earth, the shadow by the Earth is not so good.
JWST gets some additional shading by the Moon while "halo" orbiting around L2.

 

[Galu]

It's Webb's sunshield that does the shading, not the shadows of the Earth/Moon.

The sunshield is intended to reflect the heat radiation from the Sun and Earth/Moon - so it's a good idea if those bodies line up behind the sunshield.

That is the reason that L2 is chosen as the location of the JWST.

 

[system7]

A fair point, well made. If the JWST was continuously in Shadow, the Solar Power Panels wouldn't work!

https://blogs.nasa.gov/webb/2021/12/25/solar-array-deployed/

One has to wonder if the JWST has some sort of Military application that NASA doesn't want us to know about. Is it an early warning system for incoming Alien Missiles?

Enquiring Minds want to know. 😎

 

[Galu]

Steve, have you been watching repeats of Gerry Anderson's UFO again? 👽

Another S.H.A.D.O. operation! 👾

 

[benb]

Now I'm wonderin' if the gov'ment is worried about this movie being made:
https://theportalist.com/rendezvous-with-rama-movie