Home » BBC News - Technology » technology news » Giant jet engines aim to make our flying greener Giant jet engines aim to make our flying greener Unknown 4:37 PM BBC News - Technology technology news How much more efficiency can be wrung out of the jet engine - technology which is over 70 years old? from BBC News - Technology https://ift.tt/2uWL4Ml Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati