When water freezes, the molecules form hydrogen bonds and arrange themselves into a lattice structure. The molecules in ice are further apart compared to those in water, making ice less dense. And, hence, it floats. | vt.physics

The liquid crystals in the screen change their polarizing orientation depending on the electric field applied through them. If the light passing through the liquid crystal is oscillating at 90 degrees to the polarizing filter, then you will not see light coming through the screen. Video credits @filomin2 #physics #science #samsung | vt.physics

I love how #physics explains the little things that we take for granted every day. 💟 | vt.physics