On this week's Naked Scientists, we explore the engineering and materials science that will give rise to the future of transport! We find out how jet engine parts grown as a single crystal of superalloy will make flights more efficient, and how clever computer control make it easier for trucks to turn. Plus, pain-free injections for the needle-phobic, Boogie with birds and the synthesised sound of Swine Flu proteins. In Kitchen Science, Ben and Dave look back over 7000 years to seek the science of the wheel...