Back to top Episode 1 - Scalar and vector quantities and contact forces Measurements can be ... Shall we do that as a real-world example? This might make it a little bit easier.

Force is measured in newtons (N). You cannot see a force but you can see its effect. For example, when you apply a force to push a door open. Vector quantities have both a magnitude and a direction.

Authors Ian Tregillis and George R.R. Martin develop a formula to capture the dynamics driving viral behavior in the Wild ...

In independent research in the American Journal of Physics, Ian Tregillis and George R.R. Martin derive a formula for viral ...