Yearly Archives: 2019

Shrunken heads in the permanent collection of Ye Olde Curiosity Shop, Seattle, Washington. (Joe Mabel)
Shrunken heads appear in movies and video games, such as Beetlejuice, Harry Potter and the Prisoner of Azkaban, and Diablo 2. People associate shrunken heads with fictitious scary tribes, but the Jivaroan tribes in the Amazon rainforest really did make them. You may be surprised to learn head shrinking occurred […]

How Shrunken Heads Are Made

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Gallium Crystals (foobar)
Gallium is a chemical element with atomic number 31 and element symbol Ga. It is considered to be a post-transition metal or basic metal. Gallium is known for its low melting point, which lends itself to the gallium spoon demonstration and even melting the pure metal in your hand. Here […]

Gallium Element Facts

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A resistor has high electrical resistance while a conductor has high conductivity. (Nicolas Thomas)
This is a table of the electrical resistivity and electrical conductivity of several materials. Included are metals, elements, water, and insulators. Electrical resistivity, represented by the Greek letter ρ (rho), is a measure of how strongly a material opposes the flow of electric current. The lower the resistivity, the more readily the […]

Table of Electrical Resistivity and Conductivity

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Full Moon Names Word Search
A full moon brings out the romantic in people. Throughout our history, we’ve given the full moon names depending on the time of year, color, or other astronomical events. This Full Moon Names word search has 30 different traditional names for the full moon. Find the different full moon names […]

Full Moon Names Word Search

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