(Jon of the Clue Crew performs an experiment.) In the egg-in-a-bottle experiment, the flame going out causes a vacuum effect, so the egg is sucked in by the differential in this between the inside & outside of the bottle
[DOC] [TLE] Wikipedia Terms - Princeton University [PAR] effect ... perform ..... inside ... experiment ... job ... crew .... so-called .... egg .... 
outer .... vacuum .... differential ... bottle ... flame ..... clue ...... suck ...... all-out .... on
-going ...... vis--vis ...... in-between... [DOC] [TLE] AP Biology investigAtive lABs - The College Board [PAR] ask their own questions and perform their own experiments.