I What Are the Best Dimensions and Materials for High Vacuum Transparent Tubes?

AI Thread Summary
The discussion centers on determining the optimal dimensions and materials for high vacuum transparent tubes, with a proposed diameter of 30cm and a length of 1-1.5m. Participants debate the feasibility of using thicker glass to accommodate larger sizes while achieving a vacuum of 0.2-2Pa. There is skepticism regarding the need for theoretical limits on tube dimensions, with some arguing that understanding the question's intent is crucial for providing constructive advice. The conversation highlights the challenges in specifying glass thickness for such applications. Overall, the dialogue emphasizes the complexity of designing high vacuum systems with transparent materials.
Kamil19991
Hello
For the purpose of the experiment, I wonder what the maximum dimensions can have a transparent tube, I thought over a diameter of 30cm and a length of 1-1,5m and from what material should such a pipe be made. I would like to get a high vacuum (about 0,2-2Pa)
 
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Kamil19991 said:
Hello
For the purpose of the experiment, I wonder what the maximum dimensions can have a transparent tube, I thought over a diameter of 30cm and a length of 1-1,5m and from what material should such a pipe be made. I would like to get a high vacuum (about 0,2-2Pa)
I don't see how you can specify a theoretical limit since you could just make thicker and thicker glass tubes as the size goes up. What's your point in asking?
 
phinds said:
I don't see how you can specify a theoretical limit since you could just make thicker and thicker glass tubes as the size goes up. What's your point in asking?
So what thickness should the glass have in such a size to withstand?
 
Kamil19991 said:
So what thickness should the glass have in such a size to withstand?
I have no idea. I ask AGAIN ... What's your point in asking?
 
phinds said:
I have no idea. I ask AGAIN ... What's your point in asking?

Not very constructive advice methinks. How about you take a timeout.

OP have you tried using a parabolic function?
 
Kamil19991 said:
So what thickness should the glass have in such a size to withstand?
How long is a string?
 
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Kuzon said:
Not very constructive advice methinks.

Trying to find out why someone is asking a question can in fact be the most constructive approach, in my experience. Often the questioner doesn't have a well-formed question, and so attempting to answer it is not very constructive.
 
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