Because electrons are “pulled” towards the oxygen.
Gunter will be undergoing functional Magnetic Resonance Imaging (fMRI).
This technique for brain activity measuring is based on the fact that cerebral blood flow and neuronal activation are coupled. Blood flow increase in an area of the brain that is in use.
A simple <em><u>refracting</u></em> telescope uses two convex lenses to gather and focus light from a distant object.
