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

water resrvoir with electronic tubes

Figure 2: explanation of the "missing" neutrinos-muons:

explanation of the missing neutrino-muons

Figure 3: Bubble chamber capturing traces of electrically charged particles:

bubble chamber