All about spot lights and energy preservation today. And really if its worth it or if it’s too much of a pain in the ass to set up. Basically it comes down to if you make the outer cone narrower then the intensity increases for the same power. It looks nice in test setups, I’ll leave that one up to the wrists. Sasha got her walk. Had an odd text from Captain James asking about my ‘Principles of flight’ paper, then realised there are actually nine ground exams not eight, so that’s one I’ll have to do on Saturday, no real problem, I know about 80% of it already, there’s only a few weird specifics I need to know. Went for a run, it rained at some point today, no idea when.