This short video explains the importance of being aware of symbols for quantities (both scalar and vector) and units.  Physics uses letters from our alphabet (both upper and lowercase letter) and from other alphabets (e.g., λ, lambda and θ, theta).

Produced in 2015, these resources look at the development of encoding messages and how technology and science has developed to allow us to keep messages secure. Looking at unintuitive quantum properties of light, Heisenberg’s Uncertainty Principal and entanglement, students will see how keys can be shared to ensure...

This video explains how zero point energy in helium-3 and helium-4 atoms means that atoms, even at absolute zero vibrate. The smaller size of the helium-3 means it vibrates more.  In a mixture of helium-3 and helium-4 the helium-3 atoms can get closer to helium-4 than to other helium-3 (less vibration in helium-4...

This video will challenge students. It shows how particle spins of entangled particles and employing the conservation of angular momentum, can be used to solve a problem that Einstein found rather frustrating. The problem: If we measure the spin of one of the particles we automatically know the other, because it...

This video discusses the concerns people have about radioactivity and shows that, rather than the radioactivity itself, it is the radioactive atoms that are of greater concern.  Radioactivity (alpha and beta particles) is relatively harmless unless it enters the body.