DID YOU KNOW | No.71: In aeronautics and shipping, port is left, indicated by the colour red. In Audiology, red indicated the right-hand side, where left is indicated in blue. In aeronautics and shipping, Starboard is right-hand side, indicated by the colour green.
DID YOU KNOW | No.31: The human ear is frequency selective. Between 500 Hz and 6,000 Hz our ears are very sensitive compared with the lower and higher frequencies.
