What Is This Outer Space Object?

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The discussion revolves around a game called "What is It?" where participants guess the identity of various images related to outer space and technology. A recent image sparked guesses about it being a plasma engine, specifically the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) tested by Ad Astra Rocket Company. Participants also debated the authenticity of historical photographs, particularly a daguerreotype linked to Mozart, with discussions on the evolution of photography techniques. The conversation included technical details about micro-machines and their applications, specifically mentioning a spider mite for scale in a mirror drive assembly. The thread highlights a blend of curiosity about space technology and historical photography.
  • #31
Think historical progression, of photography, too. Unless that print was from a tintype, it probably was early 1860s or after. I admit that I'm still stumped though. The fellow leaning to one side looks like Arturo Toscanini in the face, but I don't know if he wore glasses when he was younger. He never seemed to be photographed wearing any when he was older, either.
 
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  • #33
Ok guys I admit that I found it accidently while searching along the lines of several unknown classical music scores that were found in 06.

A Mozart score was one of them.

I have a busy day lined up, anyone who wants to post the next "what is it" can feel free.
 
  • #34
edward said:
It is a daguerreotype. Mozart's window and friends are in the picture.

http://theonlinephotographer.blogspot.com/2006/07/photo-of-mozarts-widow-found-in.html

I think that your link shows that this is a fraud, though. Dags are very sensitive to viewing angle, and it would be tough to photograph one well enough to make a print like this and not show the metallic sheen of the emulsion. I did photography for antiques for auction, and dags were REALLY tough. in 1840, there was no photographic process capable of producing a glass-plate negative that could later be printed, so this photo should be post-1850s at the earliest, after the development of the wet collodion process when paper positives could be made.

I must say, though, that you did a remarkable job tracking down the image.
 
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  • #35
turbo-1 said:
I think that your link shows that this is a fraud, though. Dags are very sensitive to viewing angle, and it would be tough to photograph one well enough to make a print like this and not show the metallic sheen of the emulsion. I did photography for antiques for auction, and dags were REALLY tough. in 1840, there was no photographic process capable of producing a glass-plate negative that could later be printed, so this photo should be post-1850s at the earliest, after the development of the wet collodion process when paper positives could be made.

I must say, though, that you did a remarkable job tracking down the image.

I also read that the type of lens that was used to make this type of picture was not yet avaliable in 1840. Why is it that I feel bad about bursting everyones bubble.?:cry:
 
  • #36
edward said:
I also read that the type of lens that was used to make this type of picture was not yet avaliable in 1840. Why is it that I feel bad about bursting everyones bubble.?:cry:
Don't feel bad. Lots of people get fooled by old photographs, including antique dealers, who should know better. There was no means of taking clear group portraits until at least the 1850's, and in the 1860's (soldiers going away to the Civil War) saw a boom in cartes de visite photography and tintypes. In fact, some tintype photographers made quick money by photographing whole squads of solders (those that could afford it) one at a time with cameras that had multiple objective lenses. Some cameras had as many as 16 objectives, yielding 16 separate images on a single metal plate. The plate was cut up with metal shears, and the soldier had images to give to his sweetheart and parents, and some to trade with members of his unit. I have cataloged a box of these tiny "gem" tintypes of civil war soldiers, and though they were not individually identified, they brought a lot of money at auction. Any paper photograph made from a negative is generally post 1860. Matthew Brady was the most prominent photographer to document the carnage of the Civil War, which broke the long tradition of photography used for landscape scenes and portraiture. People were quite shocked by the battlefield pictures made by his staff of photographers following the troops around with portable darkrooms in their wagons.
 
  • #37
Yay! Congrats, edward.

Here is yet another article
http://www.playbillarts.com/news/article/4886.html
 
  • #39
Ok, I chose this one because it puts the size into perspective, what are the two items in the picture?

http://img502.imageshack.us/img502/443/what2xh6.jpg
 
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  • #40
The creatures probably a dust mite but I have no clue as to the name of the structure its on. Impressive though :smile:
 
  • #41
Kurdt said:
The creatures probably a dust mite but I have no clue as to the name of the structure its on. Impressive though :smile:
You don't need to know the actual name of the device, just what category it falls into.
 
  • #42
turbo-1 said:
Don't feel bad. Lots of people get fooled by old photographs, including antique dealers, who should know better. There was no means of taking clear group portraits until at least the 1850's, and in the 1860's (soldiers going away to the Civil War) saw a boom in cartes de visite photography and tintypes. In fact, some tintype photographers made quick money by photographing whole squads of solders (those that could afford it) one at a time with cameras that had multiple objective lenses. Some cameras had as many as 16 objectives, yielding 16 separate images on a single metal plate. The plate was cut up with metal shears, and the soldier had images to give to his sweetheart and parents, and some to trade with members of his unit. I have cataloged a box of these tiny "gem" tintypes of civil war soldiers, and though they were not individually identified, they brought a lot of money at auction. Any paper photograph made from a negative is generally post 1860. Matthew Brady was the most prominent photographer to document the carnage of the Civil War, which broke the long tradition of photography used for landscape scenes and portraiture. People were quite shocked by the battlefield pictures made by his staff of photographers following the troops around with portable darkrooms in their wagons.

I had the privilege to hold in my hands the very first photograph in the history of photography of a human being/(portrait)----I still (like right now even) get my hairs on my arms to raise thinking about it.

--------------------------
The photo with the mite looks like some kind of gate--like a camera
 
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  • #43
Evo said:
You don't need to know the actual name of the device, just what category it falls into.

It's a micro-machine involving a double rack-and-pinion drive, but I have no idea what it's for.
 
  • #44
Danger said:
It's a micro-machine involving a double rack-and-pinion drive, but I have no idea what it's for.
Yep, I'll give this one to you and Kurdt.

The caption is "The image above shows a Spider mite with legs on a mirror drive assembly."

Courtesy Sandia National Laboratories, SUMMiTTM Technologies, www.mems.sandia.gov
 
  • #45
Evo, that is probably an actuator for a micro-mirror, being prototyped for fiber-optic switching with a dust mite for scale.

Edit: Crap! it took me time to figure out how to describe this, but I found an image of the micro-mirror and the hinging mechanism.
 
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  • #46
turbo-1 said:
Evo, that is probably an actuator for a micro-mirror, being prototyped for fiber-optic switching with a dust mite for scale.

Edit: Crap! it took me time to figure out how to describe this, but I found an image of the micro-mirror and the hinging mechanism.
Ok, you also win. Any of you can post the next question.
 

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