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    Video thumbnail: Physics Girl The Ultraviolet Catastrophe

    Physics Girl

    The Ultraviolet Catastrophe

    How did the field of quantum mechanics come about in the first place?

    The Ultraviolet Catastrophe

    Video thumbnail: Physics Girl How does your phone send emojis?

    Physics Girl

    How does your phone send emojis?

    How does a touchscreen work? Why can you text with your finger, but not with a q-tip?

    How does your phone send emojis?