A city of Janesville official says chemical maker Abitec’s plan to rebuild its south-side factory with a new shell built ...

When building an atom ... may exist in the atom's first shell. Up to eight electrons may exist in the atom's second shell. An electron may "drop" from an outer shell if an inner shell is not ...

It is now used to construct extremely tall buildings. A bicycle helmet is a simple shell structure. The function of a bicycle helmet is to help protect a cyclist’s head. The thin curved outer ...