Robert Oppenheimer was the United states physicist who directed the project at Los Alamos that developed the first atomic bomb.
It reduced the labor of removing seeds
Since then, amendments to the Constitution have made it so that any citizen aged 18 or older can vote. Which amendments granted different groups the right to vote? ... Amendments were needed to expand voting rights because people started thinking that those groups deserved a chance to be heard. I’m not sure this is right but I hope this helps!