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how can i make invisible ink which is visible under UV light? Answered

how can i make invisible ink which is visible under UV light?

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BLUEBLOBS2
BLUEBLOBS2

8 years ago

Take a paint brush. Soak it in some lemon juice. Paint on a piece of paper. Wait until you can't see any of the lemon juice on the paper. If you look at it under a UV light, it is visible!
I hope that helps.
-BLUEBLOBS2

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NeyS1
NeyS1

Answer 3 years ago

how can we see the latter under the UV ing?

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Crazy atH
Crazy atH

Answer 4 years ago

Can lime juice produce the same effect?

Or just lemons?

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kewlman
kewlman

9 years ago

try using a highlighter!!!

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NobodyInParticular
NobodyInParticular

12 years ago

Many laundry detergents and especially color-safe bleach are loaded with UV fluorescent dyes. The quinine in soda water glows weakly too. Your best bet is probably a glow in the dark paint, as I mentioned over here.

Try carrying a black light around your house at night. You might discover something you already have.

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shehabshameer
shehabshameer

12 years ago

your comment got me thinking.. since all white substances glow under uv light maybe we could break something down and make a white paste or ink...

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BeanGolem
BeanGolem

12 years ago

It'd be cool to see if you could make some UV ink from flower petals that give off UV light! Now that would be an interesting I'ble.

Anyway... not sure how.