Figure 1: gigantic water reservoir (contains 50, 000 tones of
water) -- Superkamiokande (Japan).
- the light fascicle generated by the reaction of a
neutrino with a water particle is captured by the 13,000 tubes lining
the reservoir's walls
Figure 2: explanation of the "missing" neutrinos-muons:
Figure 3: Bubble chamber capturing
traces of electrically charged particles: