How to pronounce “diurnal cycle” in English

to analyze all that crap after the flight. So we got to save it. Well I'm going to tell you what happened to ours, because it never got back to Earth. So anyway, that's kindof like what it's like to live in space. And you get used to it. Our diurnal cycle stayed the same as Houston. We stayed on the same time as Houston so when they went to sleepat night we went to sleep. How you decide that its night in space is you put the shutters up in the windows, that's it because the sun is always up there. We had a problem with