Video of Dr. Joe Schwarcz on darkness and blue light at bedtime
Video of Dr. Joe Schwarcz: The Bible, snails and the colour blue
Video of Dr. Joe: Recycling polystyrene
Video of Dr. Joe Schwarcz: Unmasking the oil of oregano man
Video of Dr. Joe Schwarcz: On space, artificial snow and diapers
Video of Dr. Joe Schwarcz: Do house plants clean the air?
Video of Dr. Joe Schwarcz: There are so many kinds of chalk
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