Also look at additive manufacturing - we can make things that were literally impossible to fabricate five years ago with a 200k sintering setup. 4d printing is pretty cool to!

In your examples consider a modern turbofan blade, a single crystal of titanium grown in a xenon atmosphere and then heated white hot before being blown up like a balloon so as to allow refrigeration during operation! Another mind blowing sector is the change in medical scanning, ct, pet, mri - all new since 1970