This piece will burble away in an enchanting manner for hours; once the liquid rises to the top after quite some time, simply cup your hand around the top bulb; the heat of your palm will return the liquid to the bottom to burble up again.
How it works: As the heat from the bulbs warms the liquid (Ethyl alcohol) in the lower vial, it turns some of it into vapor. The natural expansion of the vapor up toward the cool end of the vial forces the remaining liquid up as well, creating a "boiling" effect. Cupping a warm hand around the top of the vial reverses the effect by reducing the temperature differential between the two ends of the vial; gravity then takes over to bring the remaining liquid downward again.
The vial sits in a flexible pivot stand, so if it takes a bump, it avoids breaking and can be easily set upright again.
Box shapes and styles vary as we find them, but range from 6-8" wide and about 4-5" tall. Please contact us if there is a particular box style you prefer.
Four different colors of liquid and corresponding vial shapes are available; please specify when purchasing.
A mesmerizing and elegant piece that demonstrates Charles's Law of thermodynamic equilibrium.
Free delivery available to the greater Austin metro area.
How it works: As the heat from the bulbs warms the liquid (Ethyl alcohol) in the lower vial, it turns some of it into vapor. The natural expansion of the vapor up toward the cool end of the vial forces the remaining liquid up as well, creating a "boiling" effect. Cupping a warm hand around the top of the vial reverses the effect by reducing the temperature differential between the two ends of the vial; gravity then takes over to bring the remaining liquid downward again.
The vial sits in a flexible pivot stand, so if it takes a bump, it avoids breaking and can be easily set upright again.
Box shapes and styles vary as we find them, but range from 6-8" wide and about 4-5" tall. Please contact us if there is a particular box style you prefer.
Four different colors of liquid and corresponding vial shapes are available; please specify when purchasing.
A mesmerizing and elegant piece that demonstrates Charles's Law of thermodynamic equilibrium.
Free delivery available to the greater Austin metro area.