Also possible to imagine, that in a similar conditions (very short mechanical impulses coming from above), there may appear something like a waves on the water, also circles.
Pia Inawezekana kufikiria, Kwamba katika hali kama hiyo na (mfupi sana impulses mitambo kuja kutoka juu), kunaweza kutokea kitu kama mawimbi juu ya maji, pia duru.