einfach_orangensaft

joined 7 months ago
[–] einfach_orangensaft 1 points 4 hours ago

Satellites are the high ground

[–] einfach_orangensaft 1 points 3 days ago

thats how it works isnt it

[–] einfach_orangensaft 9 points 3 days ago (5 children)

DoD is the institution that basically bankrolls most of what musk ever did, to me this just feels like a modern howard hughes, a flashy rich public person that does "crazy" things, very usefull thing to have to hide big military projects in plain sight....

I dont even know what the implications are when the guy that was supposed to be the diversion ends up that close to the power that funds him.

[–] einfach_orangensaft 4 points 3 days ago (1 children)

Yes, for i have no light

[–] einfach_orangensaft 6 points 3 days ago (3 children)

And i thought that meme was simple enough to understand....

 
[–] einfach_orangensaft 6 points 4 days ago

my fav from that thread (and i propose to make this a copy pasta):

My entire gripe around these scopes is the instruments being offered today, the sub-aperture lens arrangement is not doing any corrections. The lens is a straight up Barlow, nothing more.

If you look at the Bird-Jones design, the design is very specific in the design of both the primary & correcting lens. This means that both elements need to be not only matched but also well manufactured in order to work as designed. When you then look at the few true Bird-Jones instruments that were manufactured, such as the Tasco 8V (which was manufactured by Vixen), the Celestron G8-N and one other (escapes my mind right now but I'll add it when I remember), these scopes were not cheap but pushing flagship status for these brands & supplied with swish mounts. And none of these scopes can be readily collimated by the end user as the alignment of the optics is so precise it is done in-factory. The 8V alone still maintains almost cult status.

The Bird-Jones design is not without its own shortcomings. It is not perfect without aberration. It is important to remember the ideas behind its design, to provide a short tube OTA option with what was able to be readily manufactured at the time, that being good spherical mirrors.

What is made today is a far cry from what a Bird-Jones offers performance wise. Made cheap with a poor spherical primary & that they are totally collimateable by the end user shows these are not a precision scope. Add to this that not a single Bird-Jones instrument is to be found anywhere else besides these cheap things. Doesn't this say something?

These cheap instruments, really all cheap instruments are a double edge sword. They make astro more accessible, yes, but their poor quality ends up killing off more people's enthusiasm for astro than firing it up. Add to this that for many novices if the mount is not a complicated equatorial one then it isn't an astronomical instrument, & the difficult manner of using a wobble-tron mount & tripod with the mental gymnastics required just too much for most people who buy these and just give up way too soon.

Yes, there will be a few people who will be able to make these scopes work, being all they can afford, and all power to them. I will support such persons. But these are very few compared to the overwhelming number of people who just give up after the poor experience they get from these instruments. Too them astro is just all too hard, and mainly because of a poor instrument.

Call these cheap instruments what they are, a barlowed Newtonian.

[–] einfach_orangensaft 30 points 4 days ago (8 children)

Its like a newtownian just that it has a spherical mirror (cheaper to make) and uses a corrective lens in front of the eyepeace.

 
 
[–] einfach_orangensaft 15 points 1 week ago (1 children)

There are basically no "fantasy" elements, the book keeps you on edge with every page, its the most tense book i have ever read, i fr could NOT LAY IT DOWN until it was thru. Stuff why u should read the book:

  • Liquid nitrogen hand granades
  • magnetic pneumatic shootable grappeling hook
  • French special forces beeing assholes
  • more Deus ex machina moments than i ever saw before in a singular book
 

and here as a bonus for the military airplane autists...here have a Mack Maloney:

[–] einfach_orangensaft 3 points 1 week ago

credible solution right there

[–] einfach_orangensaft 4 points 1 week ago

A device like this actually appears in the plot of Matthew Reilly's Temple, tho in the book the nuclear material used was from a meteorite...still tho it was basically sundial

https://en.wikipedia.org/wiki/Temple_(novel)

[–] einfach_orangensaft 5 points 1 week ago

the birds thing is a feature, high protein snack precooked via tracer

[–] einfach_orangensaft 8 points 1 week ago (3 children)

ok throw in 20$ more for 2 servos to gumball the thing in the right direction

 

Saying non credible af here, but in theory one could add a upwards facing shotgun shells on top of the helmet, triggered by a Camera/proximity sensor if it detects a drone/falling grande. Maybe add a gyroscope to check if the helmet is actually facing upwards before triggering. All in all unit cost could be below 250$

  • 6x 12 gauge shells with bird shot
  • Raspberry pi type controller
  • USB cam
  • Laser distance sensor
  • gyroscope
  • servo trigger
56
ich_iel (sh.itjust.works)
 
25
Would this even work? (sh.itjust.works)
submitted 2 weeks ago* (last edited 1 week ago) by einfach_orangensaft to c/[email protected]
 

Or would the tolerances needed in the hinged mirror make the whole thing unusable?

I was looking at modern "smart telescopes" recently and noticed some are sideways and wondered if that would be possible for a normal hobby Newtonian telescope.

Possible upsides:

  • no tripod needed for use
  • mirror is light so smaller motors can be used for movement

Possible downsides:

  • maybe mirror flatness?

EDIT/UPDATE: so i tryed it with a 75mm first surface mirror, it kinda worked, at least better than a normal mirror, but i wasnt able to get it as sharply focused as i like. I suspect the mirrior i use has micro ripples because its just 2mm thick and doesent look like its seen a polishen process....guess thats how far a budget of 25bucks gets ya

60
ich_iel (sh.itjust.works)
 
 

Not a good year to be boeing hardware

56
ich_iel (sh.itjust.works)
 
 
 
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