![](http://imagearts.ryerson.ca/hiroshima/wp-content/uploads/2024/07/Poster-21-2.jpg)
Enrico Fermi (front left) and the Canadian scientist Walter Zinn (second from left). Photo courtesy Wikimedia Commons.
The first Atomic attack on a city as seen by witnesses
Enrico Fermi (front left) and the Canadian scientist Walter Zinn (second from left). Photo courtesy Wikimedia Commons.