Times Qrow Branwen almost lost his job at Signal
- Qrow: Alright class, the final types of concentration we'll be learning about are parts per million and parts per billion.
- Qrow: To get this, we take the mass percent and multiply it by 10 to the 6th or 10 to the 9th.
- Qrow: To remember these powers of ten, I just remember 69.
- Qrow: *Giggles to self for 30 seconds*
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- Qrow: Now, as you know, ethanol, the alcohol that we drink, is combustible.
- Qrow: *Takes out bottle of whiskey*
- Qrow: *Chugs entire bottle*
- Qrow: Now, if I were to light match over this bottle while there was still liquid, then it would catch fire.
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- Qrow: Thermal expansion-
