advanced: light & matter

  • How Were Atoms Discovered?

    How Were Atoms Discovered?

    Welcome to my fourth “Science Answers” post! If you have a question, you can ask it in the comments here, or ask it in an email. Or find me on Facebook! Q: (1) How did scientists find elements in the first place?…

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  • Star Stuff & Cecilia Payne

    Star Stuff & Cecilia Payne

    If this quote really is from Cecilia Payne, then she had the right idea — at least for a female astronomer in the 1920s. Women in science back then faced an uphill battle to get recognized for any discoveries they…

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  • The Balmer Thermometer

    The Balmer Thermometer

    How hot would you say this star is? Take a wild guess. Well…sorry, but I’m going to stop you for a moment just to make sure we’re all using Kelvins. The Kelvin scale is like the Celsius scale, except water…

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  • How Atoms Work

    How Atoms Work

    Have you ever seen something like this? I’m going to venture a wild guess and say you haven’t, since scientists have only recently been able to take this kind of image. I learned about it in my biology class this…

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  • Types of Atoms

    Types of Atoms

    Does this look familiar? It might, or it might not. If it does, you might recognize it as the periodic table of the elements — more often known as simply the “periodic table.” It’s an ingenious way to organize elements…

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