Ultrahigh-energy photons up to 1.4 PeV from 12 γ-ray Galactic sources (2021)

One of the coolest and easiest Physics home experiments, is to build your own cloud chamber, and use it as a particle detector.<p><a href="https:&#x2F;&#x2F;www.snolab.ca&#x2F;outreach&#x2F;resources-for-students-educators&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.snolab.ca&#x2F;outreach&#x2F;resources-for-students-educat...</a><p>&quot;Build a particle detector&quot;:<p><a href="https:&#x2F;&#x2F;www.snolab.ca&#x2F;wp-content&#x2F;uploads&#x2F;2021&#x2F;11&#x2F;Build-a-particle-detector-1.pdf" rel="nofollow">https:&#x2F;&#x2F;www.snolab.ca&#x2F;wp-content&#x2F;uploads&#x2F;2021&#x2F;11&#x2F;Build-a-par...</a><p><a href="https:&#x2F;&#x2F;youtu.be&#x2F;xky3f1aSkB8" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;xky3f1aSkB8</a><p>&quot;Cosmic Rays and the Cloud Chamber&quot;:<p><a href="https:&#x2F;&#x2F;crater.unh.edu&#x2F;pdfs&#x2F;CosmicRayBook.pdf" rel="nofollow">https:&#x2F;&#x2F;crater.unh.edu&#x2F;pdfs&#x2F;CosmicRayBook.pdf</a>

For laymen, can someone who is knowledge put this into persepective ?

And people say they don’t need ECC.