The experimental-technology tag has no wiki summary.
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How can some optical microscopes measure height differences of different sample planes with nanometer accuracy?
I could use last week an optical microscope, didn't seem special in any way, 50x magnification, image viewable per a CCD camera on a computer screen besides through the ocular.
But the software of ...
4
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1answer
113 views
Are old fashion photomultipliers used in LHC experiments?
Are any photomultipliers used in any of LHC detectors? Or are only semiconductor devices used?
If yes, then where?
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2answers
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Layman's method to sharpen a wire (STM-tip)
We use a platinum-irididum wire to fabricate our STM tips. And by "fabricate"
I mean to cut it with really sharp pliers or scissors.
Sometimes we get good tips but most of the time they are not usable ...
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49 views
How strong must a signal be at the edge of the Solar System to penetrate into the Sytem?
A sort-of follow-up to Are the Voyager probes still sending us a signal ?
Still following on the news report referenced in the above question, this report indicates further magnetic surprises at, or ...
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154 views
Mirrors and light beam divergence technology limits
There are many applications for orbital space mirrors in astronomy (better telescopes) and space propulsion (solar power for deep space probes), but this is limited by the minimum beam divergence ...
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35 views
Improvements on a makeshift dessicator
I am a first year undergrad working in a lab, and I have these Plexiglass containers that I tried to convert to dessicators, since the commercial bell jars are really expensive. I used these weather ...
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50 views
Atomic force microscopy
I have these questions about force spectroscopy which I can't answer:
What is the basic principle of single molecule force spectroscopy and what is the main difference with chemical force microscopy? ...
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2answers
201 views
Could we use particle colliders as fusion generators?
So I know the basic gist is that fusion power's main issue is sustaining the fusion. I also know that there are two methods. The Torus method and the laser method. The torus magnetically contains ...
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132 views
Why and how will we be able to image extraterrestrial planets in the next two decades?
According to a recently published article, a well-established Cambridge astrophysicist stated that:
the “origin of life, where it exists, and whether aliens exist,
is going to be crucial over ...
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1answer
76 views
Future of colliders and technical limitations
Are there any technical limitations (theoretical or technological) that prevent quark based colliders? ie. Colliding two quarks together.
13
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1answer
355 views
Are the Voyager probes still sending us a signal ?
This article reported today, a finding from one of the voyager probes. It talks about magnetic structures at the (far) outer edge of our solar system. Does that mean we're still able to pick up a ...
1
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1answer
159 views
Light filter for an experiment
I'm looking for a filter that lets through as many wavelengths as possible (from 200 to 5000 nm).
Is that even possible?
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1answer
176 views
How does the Double Slit Experiment work in detail?
What is the best detailed description/visualisation of the experiment available?
Describing what is actually measured, how the data is analysed, correlated and interpreted when for example large ...
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1answer
505 views
Inductor with controlled temperature coefficient
Let's assume we have an air-spaced inductor made of copper wire.
As temperature changes, due to thermal expansion of physical dimensions of the coil, its inductance changes too.
1) Is there a way to ...
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2answers
257 views
Accuracy of various optical instruments
I understand that this may not be the type of question allowed here, but I'm not sure. Feel free to close this if you feel that it shouldn't be here
I'm planning on carrying out a certain set of ...
