how can i make invisible ink which is visible under UV light?
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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Can lime juice produce the same effect?
Or just lemons?
try using a highlighter!!!
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.
just buy some?http://www.dealextreme.com/details.dx/sku.88
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...
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.