Astazi am citit un articol foarte interesant:
http://www.popsci.com/popsci/science/0a03b...ecbccdrcrd.html
Va fac un mic rezumat dar eu cred ca merita sa cititi intregul articol.
Dupa o munca de 11 ani Tim Kehoe a reusit sa-si indeplineasca visul:
A realizat baloane de sapun de diverse culori care nu lasa pete in momentul in care se sparg.
Acest lucru a fost posibil datorita descoperirii unor vopsele care isi schimba structura prin frecare.
Sabnis's solution was to build a dye molecule from an unstable base structure called a lactone ring that functions much like a box. When the ring is open, the molecule absorbs all visible light save for one color
