So here we go, we're entering another redo. Laura's fingers and wandering brain have struck again and the episode that was Identifying Common Gases only exists somewhere in the deleted file realm. Perhaps one day a science will exist that can find it but it is not this idea. SO, in lieu of that, the buff siblings from Somerset have re-recorded (corded?) and here present the exact same science again but this time with a lot more bickering and an absolute storm of extra banter that in no way relates to the science whatsoever.

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