For example, in the field of nuclear science, a particle is considered to be any atomic object whose weight is greater or equal to the weight of an electron. (silver-colloids.com)
It was thought nuclear science raised such important security issues that it needed a separate organisation, where staff could be carefully vetted for «loyalty». (newscientist.com)
This book sheds light on the more obscure but equally fascinating world of German research into nuclear science. (newscientist.com)