dot physics

Should you get a Covid-19 vaccine? Yes, it will protect you and others to help us move past this pandemic and get back to a more…

It's time for Godzilla vs. Kong—a classic battle between two impossibly giant creatures. I've only seen the trailer, and it looks…

It's finally out, the Snyder cut of Justice League. So, what about that part with Flash? This is not a spoiler, since Flash does…

Now for some values. Let's start with a check. Suppose the Ever Given is a completely flat box (no pointy bow) so that I can use…

Illustration: Rhett AllainNotice that there is a nice linear relationship between the angular position of the wheel and the…

It's fun to think about how we know stuff. For instance, the Sun has a mass of about 2 x 10 30 kilograms. That is such an enormous…

Dare Mighty Things. That was the hidden message in the parachute of the Mars Perseverance rover. It's not quite as mighty, but I…

So, imagine this steel container is instead the water line going into your house. (Unless you collect rainwater or make water from…

What? This looks just like the forces for the balloon? OK, it does look similar—but there is a big difference. For the balloon,…

OK, everything's not perfect with a state space plot. Imagine you want to plot the motion of a hidden lab orbiting around the…