Editor’s Column: Lemon juice is not an invisibility cloak

The fool doth think he is wise, but the wise man knows himself to be a fool.”
—Touchstone, in As You Like It by William Shakespeare.
In the 1990s two Cornell scientists were inspired by a would-be thief who believed that by covering his face in lemon juice he’d be invisible when he robbed the local bank. His theory? Lemon juice is “invisible ink” unless you heat it up, so by applying lemon juice to…