Part 4/7:
To monitor for potential leaks, the assembly is placed inside a glass container without the cap. As the mixture heats up, any escaping hydrogen would accumulate within the jar. The team has a safety plan in mind: if they introduce a glowing stick (a lit wooden stick) from a distance and produce a "woof" sound, it would indicate a hydrogen leak. Fortunately, the system is designed without any pressure buildup to minimize danger, given the absence of a confined reaction.