we show how to make flowers glow in the dark under ultraviolet light using a fluorescent dye.
You
really only need two things, an ultraviolet lamp and a fluorescent
highlighter. Open the highlighter and squeeze a few drops of the
fluorescent ink into a cup of water. Now take the flower (i find white
carnations to be the best) and cut the stem underneath the solution.
Leave the flower in overnight and the dye will have been absorbed into
the flower.
Now simply shine an ultraviolet light onto the flower
to cause the highlighter dye to glow. whats amazing is that the glow
isn't uniform but will glow bighter in areas where the dye accumulates.
Often this gives a more complex pattern to the flower.
So for valentine's day, give glow in the dark flowers.
Petite expérience amusante pour les n'enfants - une fleur qui "glow in the dark"
Bon, il faut quand même
- des fleurs coupées de préférence blanches
- un marqueur fluo (à sacrifier)
- un vase avec de l'eau
- et le plus dur une lampe à ultraviolet ... en bon Geek, moi j'en ai ;)
Le tout en image par là:
http://www.geekologie.com/2011/02/glow_in_the_dark_flowers_for_v.php
Et en vidéo sur le site ou plus bas
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