What are examples of technological improvements that lead to advantages for society?

I'm not sure how this is related to science and technology, so I'm gonna give a general answer. Being tall when you need to reach something that's out of reach of short people is an advantage. Having...

This is a example of a lead:I heard a Taylor swift song playing in my purse. I had just put a french fry in my mouth. A got my phone out and mumbled under my breath. Hello? Mom come quick! I found...

Low cost, chemically unreactive (won't corrode etc), high density (heavy), low melting point, electrical conductor, nonmagnetic, formable (malliable, ductile etc), low hardness (for a metal), its a...

Jetix, the children's television channel brand owned by Disney-ABC Television Group broadcast in Italy

Yes, most or all people would consider a ladder to be one.