The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea Video 33:45 26 votes
Denmark's Henrik Stiesdal and Andrew Garrad from the UK share engineering's QEPrize for contributions to the development of wind power Article 818 words 5 votes
Why is desalination so difficult? An overview of seawater desalination: Removing salt to make drinkable water from the ocean. Video 20:32 15 votes