The ring is spun on the dish. How long will it spin?How does the ring move?Which different movements can you observe?What do you hear?What do you think how heavy the ring is? The Swiss-born Mathematician Leonard Euler (1707-1783) made hundreds …
The ring is spun on the dish. How long will it spin?How does the ring move?Which different movements can you observe?What do you hear?What do you think how heavy the ring is? The Swiss-born Mathematician Leonard Euler (1707-1783) made hundreds …