Part 2/7:
The first sample analyzed came from the aluminum draft tube, which plays a critical role in channeling air to the engine from a thunderstorm generator. Bob presented a scraped sample with noticeable buildup underneath the intake area. Initial comments questioned the exact nature of the materials present—specifically, whether the buildup was aluminum or contained other substances like iron.
During this phase, the discussion shifted toward identifying a specific element: the iron crenated sphere. An interesting back-and-forth ensued on whether aluminum might also present similar features—an exploration that relied heavily on the scrutiny of chemical properties.