The phrase "minute lecture" means a very short and brief talk or presentation that lasts only a short amount of time, usually not more than a minute. Full definition
They describe the results of a study in which learners heard a 45 - minute lecture on risk assessment in construction management. (elearningindustry.com)
It was great to read especially after getting a 15 minute lecture from a friend who says I am silly to travel while I'm young! (thebarefootnomad.com)
Gone is the 50 - minute lecture with note - taking five days a week followed by a test of those carefully scripted notes copied by students. (hechingerreport.org)