31–40 of 87 posts
Last semester at university lab, our group tried to rebuild it in our lab.
Through our spectacular fail, we learned how amazing this project actually is. It is harder than it seems.
One can learn very much about piezo electronics, especially about OPamp circuits. And do not underrate the damping!
Earlier quoted context omitted.
You don't think there's a difference between what you see with your naked eye, and what is visualised for you by sensors and software?
do you think your eye is not a sensor ?
Imagine you were born deaf and couldn't hear music. But that someone showed you a music visualiser.
Do you think if you were watching the output of that visualiser you would now know the music in some meaningful way?
I think I'm going to build this with my kids. What better way to show them atoms than to actually make them build a microscope that shows you the things directly?
Earlier quoted context omitted.
do you think your eye is not a sensor ?
Of course your eye is a sensor. As are all your senses. The difference is that the input it receives is unmediated by external sensors and software. Visualising atoms or DNA is fine, but it is an inferior source of information. By a long way. Imagine you were born deaf and couldn't hear music. But that someone showed you a music visualiser. Do you think if you were watching the output of that visualiser you would now…
I think I'm going to build this with my kids. What better way to show them atoms than to actually make them build a microscope that shows you the things directly?
This project is great. Last semester at university lab, our group tried to rebuild it in our lab. Through our spectacular fail, we learned how amazing this project actually is. It is harder than it seems. One can learn very much about piezo electronics, especially about OPamp circuits. And do not underrate the damping!
I think I'm going to build this with my kids. What better way to show them atoms than to actually make them build a microscope that shows you the things directly?
I'm sure its a cool project. But its not showing things directly, is it? Its interpreting a frequency and converting that to an image. Is it really that different to a music visualiser?
Of course a STM does not work with visible light so it's pretty damn obvious that any measurements will use some other mechanism, and will have to have their measurements converted into an image that we can see. But that does not mean we are not observing. As opposed to reading about someone else's observations.
I take it you also believe that quasars have not been observed and ditto for the dark side of the moon?
Can someone ELI5 the vibration isolation [0] part of it? I kind of get what he's doing, but would appreciate some analogy if it makes sense to make an analogy. [0] https://dberard.com/home-built-stm/vibration-isolation/
Especially the vibration damping is nicely done, it is zero contact and has the effect of stopping any beginning oscillation in its tracks.
Can someone ELI5 the vibration isolation [0] part of it? I kind of get what he's doing, but would appreciate some analogy if it makes sense to make an analogy. [0] https://dberard.com/home-built-stm/vibration-isolation/
If you have no vibration isolation, it is nearly impossible to draw a very thin and straight line.
(Maybe a bit exaggerated, the vibration analogy is a bit weaker in reality)
Can someone ELI5 the vibration isolation [0] part of it? I kind of get what he's doing, but would appreciate some analogy if it makes sense to make an analogy. [0] https://dberard.com/home-built-stm/vibration-isolation/