177
submitted 2 years ago by [email protected] to c/[email protected]
you are viewing a single comment's thread
view the rest of the comments
[-] [email protected] 104 points 2 years ago

So, in the fine tradition of using bananas for scale...

Bananas are slightly more radioactive than the background, due to potassium-40 content. So an informal unit of radiation measure in educational settings is the 'banana-equivalent-dose', which is about 0.1 microsieverts.

My particle spectrometer saw first light today, and I figure that I could use a banana to calibrate it. Then I noticed that K-40 undergoes a rare (0.001%) decay to 40Ar, emitting a positron. So not only is a banana a decent around-the-house radioisotope source, it's also an antimatter source.

Truly a remarkable and versatile fruit.

[-] [email protected] 41 points 2 years ago
[-] [email protected] 19 points 2 years ago
load more comments (6 replies)
load more comments (11 replies)
this post was submitted on 02 Nov 2023
177 points (98.9% liked)

Asklemmy

48781 readers
703 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

  1. Open-ended question
  2. Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
  3. Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
  4. Not ad nauseam inducing: please make sure it is a question that would be new to most members
  5. An actual topic of discussion

Looking for support?

Looking for a community?

~Icon~ ~by~ ~@Double_[email protected]~

founded 6 years ago
MODERATORS