Tachyon ...moving faster than the speed of light

The Super K detector in Japan can measure tachyons as they move faster than light.

Hold up! Einstein said nothing moves faster than light! That's right in vacuum. But Tachyons move faster than light in water - for which the Super K detector was designed. The above picture clearly shows the Cherenkov Halo as the Tachyon moves faster than the speed of light creating 2 images moving away and cvreating a red and a blue shift.