Uncertainty Principle & Complementarity – Virtual Particles, Zero-Point Field & Casimir Effect – Thumbnail

What is Bohr’s Principle of Complementarity and how does it relate to Heisenberg’s Uncertainty Principle? Are there any alternative formulations of the Uncertainty Principle? What are virtual particles? And what do virtual particles, the Zero-Point Field and the Casimir Effect have to do with Heisenberg’s Uncertainty Principle?