Which weighs more- a pound of cement or a pound of feathers?
You may have been fooled by this riddle, before. The answer, of course, is they are equal in weight – one pound. This riddle works because it takes advantage of the dynamic relationship between mass and volume. Because density is different between feathers and cement, the volume of feathers required to weigh a pound is far greater than that of cement. The unique relationship between mass and volume is beautifully illustrated by Provident Metals’ Elemental line of bullion cubes from Czar Metals.
The Elemental line features bullion, cubed and stamped with the properties of the element from which it was created. Elements now available are copper, titanium, magnesium, and zirconium. These four cubes each measure 1.25”x 1.25”x 1.25”; however, the weigh
t and density of each piece of bullion varies.
At 10 ounces, copper is by far the most dense of the four elements.
- Density – 4.54g/cc
- Atomic mass – 63.55 amu
- Atomic number – 29
- Melting point – 1085º C
Zirconium weighs 7 ounces and follows copper as the second most dense Elemental cube available for purchase.
- Density – 6.52g/cc
- Atomic mass – 91.224 amu
- Atomic number – 40
- Melting point – 1855º C
Weighing just 5 ounces, titanium ranks as the third most dense cube in the Elemental collection of bullion.
- Density – 4.54g/cc
- Atomic mass – 47.87 amu
- Atomic number – 22
- Melting point – 1600º C
The least dense element currently available in this collection from Czar Metals is magnesium; with the same dimensions as copper, zirconium, and titanium, magnesium weighs just 2 ounces.
Density – 1.74g/cc- Atomic mass – 24.31 amu
- Atomic number – 12
- Melting point – 649º C
The Three Copper Cubes
In addition to the smaller, 1.25″ x 1.25″ x 1.25″ cubes, two larger copper cubes are available in 1 pound and 5 pound sizes. Because copper is so dense, these cubes pack quite a punch and are sure to impress fans of the periodic table. Whether you use the cubes as desk ornaments or display pieces in your bullion collection, the copper cubes make a big statement.
The science lover in your life will love the Elemental line; it is a tangible representation of the fascinating nature of the elements. The identical measurements of each of the four unique cubes leads one to assume the pieces will similarly share the same weight, but the physical properties are quite different. Expand your bullion collection with these conversation starting pieces from Czar Metals by calling our customer service representatives at 800-313-3315, or by visiting our Secure Website.
Would love to have spheres in all the metals and rare earth metals.. is this possible? With the stamped elemental chart info. Just awesome!
Thank you
I would like to purchase a 1.5 inch magnesium sphere to accompany my Tungsten, Steel and Aluminium spheres. What would the cost be?
Gary J
Hi Gary,
This is the only magnesium sphere we currently have in stock. Hope that meets your needs!
Man this is awesome! Great display pieces with each one having the same dimensions as the other. And what fantastic intrigue that they seem to fetch from the kids! Outstanding teaching mechanisms, as each one seems to offer a whole myriad of vehicles, segueing from one to the next comes naturally as our minds are driven through the periodic table of elements, and into the scenic routes of math, as we identify and measure the different shapes mass and weight classes of each geometrical wonder, until we find ourselves taking the long way home, weaving timeless investment strategies with the purchase of precious medals, and fine bullion.
Really like these, but already have all 4 types offered.
When will the offer be expanded to offer additional types in the 1.25″ cubed cubes?