The Higgs Boson, Part II - What is Mass?

The video explains how the Higgs field gives particles mass, differentiating it from the Higgs boson. It begins by defining mass and masslessness, noting that massless particles travel at the speed of light. The Higgs field, with its non-zero value everywhere, allows particles to interact with it, appearing to have mass. This interaction is crucial for particles to not always travel at light speed. The Higgs field also interacts with its own excitations, giving mass to the Higgs boson. Despite the challenges, the Higgs field is essential for the existence of mass, allowing particles to move at various speeds.

Discuss the implications of having mass in terms of particle movement.

How does the interaction with the Higgs field affect massless particles?