This is Quint BUILDs entry for the #VeritasiumContest. Contest details: https://www.veritasium.com/contest

In case it wasn't clear from the video, the smaller battery has a higher voltage, but that just means the bulb will "eat" through it even faster than if it were the same voltage as the larger battery.

Key takeaways:
- Higher voltage (V) pushes more current (I) thru the same bulb (V=IR or I=V/R, Ohm's law).
- The smaller battery is a stack of many tiny sandwiches (higher voltage) which gets "eaten" very quickly.
- Current always completes a circuit to ground (bulb was pooping ground symbols).

Not covered:
- Battery capacity is rated in amp-hours, but this is not a measure of power or energy.
- Power=Volts x Current (watts), Energy=Power x Time (watt-hours)
- Battery chemistry (Alkaline vs. Nickel or Lithium) affects battery capacity significantly.
- Cheap battery brands often lie about capacity, so buyer beware!
- Batteries often don't include rated capacity on the label. Rather they publish runtime charts under various conditions on their websites.

Derek is a man after my own heart, exploring and sharing, even when the results are controversial. What a cool way to capitalize on his bet, generating a surge of short STEM videos online!

What do you think, should I do more videos like this one? It was a lot of work cramming that much information into 60 seconds but I enjoyed every moment!

Quint

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