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Hubble is back

nasa.gov

111–120 of 128 posts

Re: Hubble is back

#111

Earlier quoted context omitted.

From what I hear the original "startup" NASA from the 60s was a no deadweight organization that efficiently cranked out world class space flight. That it since followed the path of every other monopoly bureaucracy was of course unavoidable.

Interestingly the Indian Space Research Organisation seems not to have followed this path.

A professor of mine who used to work at ISRO says that the place is choke full of bureaucracy.

Re: Hubble is back

#112
post #5

Earlier quoted context omitted.

I shake my phone vigorously if the small motor gets stuck and stops buzzing.

And it works, doesn't it?

Yes, it has diagnostic software which allows you to run the motor constantly. I switch it on and shake it about until it gets unstuck, run it for a few more seconds, and it's good for another three months or so.

Re: Hubble is back

#113
post #84

Ha! They were able to recover the failed backup gyroscope by executing a series of attitude maneuvers while switching between operational modes on the gyro. They literally shook the spacecraft and turned the gyro off-and-on. Sometimes you gotta bang on something to get it to work! I would love to buy a beer for the mission operations team member who came up with that idea!

https://en.wiktionary.org/wiki/percussive_maintenance ftw edit: I have to add, i just found out about the extent of the definition. >make a malfunctioning device or person work.

Packing a punch is not only useful to fix things, but often the best way to get you an answer. Or as my control theory professor used to say:

If you want to know how an unknown system reacts, first thing you do is to hit it hard.

What he meant was that applying the Heaviside function to the inputs of a system to determine the step response [1] is one of the first things we should do.

[1] https://en.wikipedia.org/wiki/Step_response

Re: Hubble is back

#114

Ha! They were able to recover the failed backup gyroscope by executing a series of attitude maneuvers while switching between operational modes on the gyro. They literally shook the spacecraft and turned the gyro off-and-on. Sometimes you gotta bang on something to get it to work! I would love to buy a beer for the mission operations team member who came up with that idea!

Maybe they just grew up with Windows 95 where switching off and on solved 99% of issues.

Re: Hubble is back

#115
post #103
post #96

Earlier quoted context omitted.

I think the creativity and imagination required to solve this kind of problems is not really within current AI reach yet. The ability to take existing ideas and combine them in unique ways to come up with something new is very powerful, and not yet easily replicable by AI.

Genetic Algorithms are pretty creative. I think a bigger problem is that we have no general way to turn “what we want” into a mathematically formalised goal that an AI can work towards — we can only manage specific cases like “how many components does this signal generator circuit use” or “make a new face based on these examples of faces”.

You can probably train them using dwim

Re: Hubble is back

#116
post #89
post #80

Earlier quoted context omitted.

I wish I could do that to my software sometimes. Just bang my computer to get it working.

You can - in Javascript for example: setTimeout(function() { ... setTimeout(function() { ... }, Math.random() 1000); }, Math.random() 1000); // winning!

Proof for P==NP is somewhere 30 layers deep in the bowels of a low-traffic javascript-rendered site.

Re: Hubble is back

#118
post #84

Ha! They were able to recover the failed backup gyroscope by executing a series of attitude maneuvers while switching between operational modes on the gyro. They literally shook the spacecraft and turned the gyro off-and-on. Sometimes you gotta bang on something to get it to work! I would love to buy a beer for the mission operations team member who came up with that idea!

https://en.wiktionary.org/wiki/percussive_maintenance ftw edit: I have to add, i just found out about the extent of the definition. >make a malfunctioning device or person work.

a hammer is my go to tool for anything thats stuck. a good whack usually get things going ;-)

Re: Hubble is back

#119
post #42

Earlier quoted context omitted.

No we no longer have this capability. Soyuz capsules are not really designed for EVA.

You can do EVA with Soyuz https://en.wikipedia.org/wiki/Soyuz_5#EVA_details However that mission will unlikely be possible for both technical and political reasons.

Yea I know you can do EVA from the Soyuz, but it's not really designed for the types of extended EVA missions required to repair the Hubble.

Re: Hubble is back

#120
post #80

Ha! They were able to recover the failed backup gyroscope by executing a series of attitude maneuvers while switching between operational modes on the gyro. They literally shook the spacecraft and turned the gyro off-and-on. Sometimes you gotta bang on something to get it to work! I would love to buy a beer for the mission operations team member who came up with that idea!

I wish I could do that to my software sometimes. Just bang my computer to get it working.

In that case, you may enjoy https://github.com/ajalt/fuckitpy

Or its siblings, including https://github.com/mattdiamond/fuckitjs

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