The particle was later named the neutrino , Italian for little neutral one . Jr. Detecting these things is not easy because matter is virtually transparent to neutrinos. Moving very quickly, they continually pass through our planet, seldom striking matter. The subsequent three figures will show you how it happens. Please bear in mind that all the figures represent three-dimensional space.
Neutrinos perpetually flow in all directions.
For ease of comprehension, each of these first two figures depict neutrino flow in a single direction only. Figure 3 ties it all together. In Figure 1, the planet has blocked some of the neutrinos from the moon. Although most of the neutrinos have passed straight through, the planet has blocked some that would have made it to the moon, had the planet not been there. In Figure 2, the moon has blocked some of the neutrinos from the planet.