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Usenet Posted 19 years ago
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Manhattan Effect - more information
Hello once again all,
A few weeks ago I was asking about the origin of the "Manhattan Effect", where flow-soldered surface-mount components become displaced when a Printed Circuit Board (PCB) is soldered. Components can sometimes stand on there ends. This is well know in the PCB manufacturing as the Manhattan Effect.
Many thanks to all who gave comments and responses, both via the group and e-mail. I received a lot of feedback, "food for thought", and good information. You all started me to dig deeper and you may be interested in the following.
The "Manhattan Effect" has nothing to do with the Manhattan skyline, or any part of the geological topography. When I jokingly suggested Hiroshima and Baghdad may be better names I was not so far from the truth.
In the early 1940s it was Albert Einstein who pushed the US government into action with the news that Germany were about to split the atom and release destructive powers the world had never seen. The US government listened to Albert and in secret, started a project to create the West's own atomic bomb.
The project was top secret, and the man overseeing the project separated the various components and had them developed in different areas of the US, and by different groups, each having no contact with the other groups.
This was called the "Manhattan Project".
The result of the Manhattan project was the bombs set off over Hiroshima and Nagasaki, effectively ending the 2nd world war. It is ground photographs of the destroyed cities that gave the name to the misplacement of surface-mount components on a PCB, each having similar visual properties.
So once again, many thanks to all who offered information and pointed me in the right direction.
Best regards from Harry
A few weeks ago I was asking about the origin of the "Manhattan Effect", where flow-soldered surface-mount components become displaced when a Printed Circuit Board (PCB) is soldered. Components can sometimes stand on there ends. This is well know in the PCB manufacturing as the Manhattan Effect.
Many thanks to all who gave comments and responses, both via the group and e-mail. I received a lot of feedback, "food for thought", and good information. You all started me to dig deeper and you may be interested in the following.
The "Manhattan Effect" has nothing to do with the Manhattan skyline, or any part of the geological topography. When I jokingly suggested Hiroshima and Baghdad may be better names I was not so far from the truth.
In the early 1940s it was Albert Einstein who pushed the US government into action with the news that Germany were about to split the atom and release destructive powers the world had never seen. The US government listened to Albert and in secret, started a project to create the West's own atomic bomb.
The project was top secret, and the man overseeing the project separated the various components and had them developed in different areas of the US, and by different groups, each having no contact with the other groups.
This was called the "Manhattan Project".
The result of the Manhattan project was the bombs set off over Hiroshima and Nagasaki, effectively ending the 2nd world war. It is ground photographs of the destroyed cities that gave the name to the misplacement of surface-mount components on a PCB, each having similar visual properties.
So once again, many thanks to all who offered information and pointed me in the right direction.
Best regards from Harry
Top answer
[nq:1]Hello once again all, A few weeks ago I was asking about the origin of the "Manhattan Effect", where flow-soldered ... When I jokingly suggested Hiroshima and Baghdad may be better names I was not so far from the truth. This[/nq] (development of the atomic bomb.
- [nq:1]Hello once again all, A few weeks ago I was asking about the origin of the "Manhattan Effect", where flow-soldered ...
- When I jokingly suggested Hiroshima and Baghdad may be better names I was not so far from the truth.
- This[/nq] (development of the atomic bomb.
- my reduction of your history) [nq:1]was called the "Manhattan Project".
- The result of the Manhattan project was the bombs set off over Hiroshima and Nagasaki, ...
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3 Answers
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[nq:1]Hello once again all, A few weeks ago I was asking about the origin of the "Manhattan Effect", where flow-soldered ... When I jokingly suggested Hiroshima and Baghdad may be better names I was not so far from the truth. This[/nq]
(development of the atomic bomb. . .my reduction of your history)
[nq:1]was called the "Manhattan Project". The result of the Manhattan project was the bomb
(development of the atomic bomb. . .my reduction of your history)
[nq:1]was called the "Manhattan Project". The result of the Manhattan project was the bomb
00
(ground zero)
[nq:1]*said term, of course, also being inherited from the era of "THE BOMB".[/nq]
On World Wide Words at
Michael Quinion cites a 1946 New York Times article about Hiroshima or Nagasaki, in which the phrase is in quotation marks and accompanied by a parenthesized definition, noting "The term looks as though it has been borrowed from a bit of existing military jargon,
[nq:1]*said term, of course, also being inherited from the era of "THE BOMB".[/nq]
On World Wide Words at
Michael Quinion cites a 1946 New York Times article about Hiroshima or Nagasaki, in which the phrase is in quotation marks and accompanied by a parenthesized definition, noting "The term looks as though it has been borrowed from a bit of existing military jargon,
00
[nq:1](ground zero)[/nq]
[nq:2]*said term, of course, also being inherited from the era of "THE BOMB".[/nq]
[nq:1]On World Wide Words at Michael Quinion cites a 1946 New York Times article about Hiroshima or ... as though it has been borrowed from a bit of existing military jargon, though I can¹t find an earlier example."[/nq]
I think that it was Wikipedia where the same article is qu
[nq:2]*said term, of course, also being inherited from the era of "THE BOMB".[/nq]
[nq:1]On World Wide Words at Michael Quinion cites a 1946 New York Times article about Hiroshima or ... as though it has been borrowed from a bit of existing military jargon, though I can¹t find an earlier example."[/nq]
I think that it was Wikipedia where the same article is qu
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