this post was submitted on 26 Nov 2023
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Aotearoa Daily Kōrero 27/11/2023 (self.newzealand)
submitted 1 year ago by Dave to c/newzealand
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Welcome to today’s daily kōrero!

Anyone can make the thread, first in first served. If you are here on a day and there’s no daily thread, feel free to create it!

Anyway, it’s just a chance to talk about your day, what you have planned, what you have done, etc.

So, how’s it going?

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[–] absGeekNZ 2 points 1 year ago

This is a problem; but we also don't know what sensing technologies are available in the future.

There is a very interesting sensor that I was reading about; it uses entangled photons (microwave) one is sent to what is to be detected in a electromagnetically noisy environment, but the measurement is made on the entangled partner which is in a low noise environment. This allows the measuring precision way beyond the noise floor of the measured environment.

I'm not sure what breakout tech will come along; I know that beyond about 300ly, even powerful signals like the original Olympics broadcast in 1936 would be below the noise floor of the CMB. But that is not really a hard limit to detection, the GPS signals are below the noise floor yet they are used everyday by billions of people.