A demonstration of the VeinViewer - a device which allows you to see through the skin. The VeinViewer uses near-infrared light to detect vessels and blood up to 10mm beneath the surface, and projects a picture onto the skin to reveal vessel structure and blood flow in real time.
Clip taken from the 2013 Royal Institution CHRISTMAS LECTURES: Life Fantastic Lecture 1 - Where do I come from?
Playing music requires fine motor skills, which are controlled in both hemispheres of the brain. It also combines the linguistic and mathematical precision (which the left hemisphere is more involved in) with the novel and creative content (that the right hemisphere excels in). For these reasons, playing music has been found to increase the volume and activity in the brain’s corpus callosum - the bridge between the two hemispheres - allowing messages to get across the brain faster and through more diverse routes.
From the TED-Ed lesson How playing an instrument benefits your brain - Anita Collins
Animation by Sharon Colman Graham