How movies create artificial clouds and mist?
Concept: Movie sets use dry ice that converts directly from a solid state to a gas and appears like a cloud
Experience By: Making cloud in a bottle


How signals are transmitted over internet over long distances?
Concept: Total Internal Reflection of Light makes the transmission very efficient
Experience By: Observing the reflection of light from the "surface" of water as it bends beyond the critical angle
How submarines target enemy ships from under the water?
Concept: Light travels in straight lines
Experience By: Making your own Periscope
