Professor Henry Greenside Physics 264L Professor Henry Greenside Monday 2015-09-23 1

Gravitational Mass Equals Inertial Mass! Interesting lesson for engineering students: many physics questions motivate people to build engineering devices that no engineer would otherwise build, too expensive, no market. So get a PhD in Physics if you want a chance to build insanely difficult and interesting devices… 1969 Apollo 15 Moon landing https://www.youtube.com/watch?v=5C5_dOEyAfk 2

How to See a Black Hole: Accretion Disks Interesting lesson for engineering students: many physics questions motivate people to build engineering devices that no engineer would otherwise build, too expensive, no market. So get a PhD in Physics if you want a chance to build insanely difficult and interesting devices… 1969 Apollo 15 Moon landing 3

Chandra X-Ray Telescope: Image of Andromeda Galaxy Interesting lesson for engineering students: many physics questions motivate people to build engineering devices that no engineer would otherwise build, too expensive, no market. So get a PhD in Physics if you want a chance to build insanely difficult and interesting devices… 1969 Apollo 15 Moon landing 4