Professor Bubbles' Official <body> <div id="bubbleswrapper" class="cms-editable"> <p>Bubble Home Page </header> <body BACKGROUND="pastel.jpg" TEXT="000000" LINK="FFFF00" VLINK="F30075" ALINK="00FFFF"> <div id="bubbleswrapper" class="cms-editable"> <h1><center> Why Bubbles Have</center> <center> So Much Color</center></h1> <hr> <p><pre> </pre> <a HREF="pixpag9.htm"><img ALIGN="left" HSPACE="10" SRC="pb12x.gif" width="120" height="77"></a> <p><h3>Similar to the way we perceive the colors in a rainbow or an oil slick, we see the colors in a bubble through the <i>reflection</i> and the <i>refraction</i>of light waves off the inner and outer surfaces of the bubble wall. You really can't color a bubble since its wall is only a few millionths of an inch thick, but a bubble reflects plenty of color from its surroundings.</h3> <hr> <a HREF="pixpag10.htm"><img ALIGN="right" SRC="ux.gif"></a> <p><h3>The longer a bubble "lives," the more gravity has a chance to pull the fluid in the bubble towards its bottom. As this happens, or as water evaporates from a bubble, it loses its color..... first at the top and then all over. You can usually tell that a bubble is about to pop when it becomes colorless.</h3> <hr> <a HREF="pixpag11.htm"><img ALIGN="left" SRC="kx.gif" width="120" height="76"></a> <p><h3>Frozen bubbles really have no color! By putting dry ice in a plexiglass box and blowing bubbles into it, the bubbles, as they filled with CO2, sank to the bottom and actually froze. You might try to make a bubble outside in the wintertime. Let it freeze on a wand to get the same effect.</h3> <a HREF="pbhpc.htm"><h2>Back to Previous Menu</h2></a> </div> </body> </html>