Questions with the keyword 'invention'

• What in your opinion has been the greatest development/ invention in physics over the last 5 years? by Physicser to Jackie, Michele, Oliver, Vicky, Yelong Comments: (No comments so far )
• What would you like to find/ invent? by Physicser to Jackie, Michele, Oliver, Vicky, Yelong Comments: (No comments so far )
• Do you think that the selfie stick is a good invention by PenelopeCSB to Jackie, Michele, Oliver, Vicky, Yelong Comments: (No comments so far )
• Which invention do you wish you had made? by мocнιĸarage to Oliver Comments: (No comments so far )