Questions with the keyword 'invention'

• What do you think is the best contribution/invention/discovery that anyone has made to science… It can be anything… by opalrox4eva53 to Janette, Renee, Yusuf . Comments: (So far, one comment)
• what do you hope will be invented in the future by ultimatezeus to Renee, Janette, Dirk . Comments: (No comments so far)