*This is the theory of light by the Duchess, and look out, Isaac Newton. Because she can see Light, with her senses, Light must be heavier than air, which she can't see.
*Mostly, though, she's saving it up for a bravura show of the world's most weird lights, because those are the good ones that are the most fun to think about.
CHAP. XXVII. Of LIGHT.
Water, Air, Fire, and Light; are all Rare and Fluid Creatures; but they are of different sorts of Rarities and Fluities: and, though Light seems to be extreamly Rare and Fluid; yet, Light is not so Rare and Fluid, as pure Air is, because it is subject to that sort of Human Perception we name _Sight_; but yet, it is not subject to any of the other Perceptions: and, pure Air is only subject to the Perception of Respiration, which seems to be a more subtil Perception than Sight; and that occasions me to believe, That Air is more Rare and Pure, than Light: but howsoever, I conceive the Figurative Motions of Light, to be extraordinary even, smooth, agil Lines of Corporeal Motions: but, as I said before, there are many sorts of Lights that are not Elemental Lights; as, Glow-worms Tails, Cats Eyes, Rotten Wood, Fish Bones, and that Human Light which is made in Dreams, and Infinite other Lights, not subject to our Perception: which proves, That Light may be without Heat.
But, whether the Light of the Sun, which we name _Natural Light_, is naturally hot, may be a dispute: for, many times, the Night is hotter than the Day.
