It is tempting to think that some materials are always heavier than other materials. For example, someone might say that metal is heavier than air. But it depends on how much of each material there is ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hi, I'm Diana. Great to be here with you today. I was wondering why is it that a golf ball and a ping ...

In my previous post about a floating Saturn, I hinted that I could write about the methods we can use to find the density of Saturn. Oh, and once again, the density of Saturn is lower than the density ...