Alexander Graham Bell Quote

What is an odor? Is it an emanation of material particles into the air, or is it a form of vibration like sound? If you can decide that, it might be the starting point for a new investigation. If it is an emanation, you might be able to weigh it; and if it is a vibration, you should be able to reflect it from a mirror.


'Discovery and Invention' by Alexander Graham Bell, The National Geographic Magazine, Vol. 25 (1924)


What is an odor? Is it an emanation of material particles into the air, or is it a form of vibration like sound? If you can decide that, it might be...

What is an odor? Is it an emanation of material particles into the air, or is it a form of vibration like sound? If you can decide that, it might be...

What is an odor? Is it an emanation of material particles into the air, or is it a form of vibration like sound? If you can decide that, it might be...

What is an odor? Is it an emanation of material particles into the air, or is it a form of vibration like sound? If you can decide that, it might be...