Looking at the World Through a UV Camera Reveals Some Unexpected Surprises
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You probably think of sunburn when you think of UV light and you’d be right, but examining the world through UV cameras reveal other fascinating information about it.
This informative video from Veritasium explains some of the principles of the light, showing a whole new way of perceiving the world.
Ultraviolet light interacts with the world differently and makes some things look very different to regular visible light while others remain very close to the same. For instance, some pigments selectively absorb UV so they may appear white in visible light but dark in UV light.
Fluorescent molecules look different across different lights, they absorb UV light and re-radiate that energy back as visible light, this causes them to look dark in UV but glow brightly under black light.
A good example of this is looking at tonic water inside with a UV lamp after it has been outside! As summer continues to scorch much of the northern hemisphere, it’s fascinating to learn about Ultraviolet light and the way it interacts with our bodies.
Host Derek Muller invites fellow YouTube creator, ‘The Physics Girl’ onto the episode to explain in more detail about sunscreen, UV light, and our skin.
The video will help you not only protect your skin on sunny days, but it will also help you understand the way everything around us is affected by different types of light.
Via: Veritasium
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