Tag Archives: Universe Today

Black Spidery things on Mars

Radiolab Blogland recently posted the piece below titled “Krulwich Wonders: Are Those Spidery Black Things on Mars Dangerous? (Maybe).” Read on! “You are 200 miles directly above the Martian surface—looking down. This image was taken by the Mars Reconnaissance Orbiter on Jan. 27, 2010. (The color was added later.) What do we see? Well, sand, mostly [...]

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Sizing up the Moon

Universe Today offers a few fascinating ways to consider the size of the moon: “The volume of the Moon is 2.195 x 1010 km3 [almost 22 billion km3]. That sounds like a huge number, but it’s actually only 2% the volume of the Earth.  In other words, you could fit 50 moons inside the volume [...]

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10-to-plus13

We can consider the power 10+13 from multiple perspectives.  A few of many examples are listed below: Surface area of Antarctica, Russia, Africa and the moon (14, 17, 30 and 38 megameters2 respectively) Total wealth (as of 2010) of the 10.9 million people in the world with $1 million or more of investable assets Diameter [...]

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10 (- macroscopic & microscopic worlds in Boltzmann constants)

Two excerpts from Jean Tate’s article in Universe Today about Boltzmann constants: “There are actually two Boltzmann constants, the Boltzmann constant and the Stefan-Boltzmann constant; both play key roles in astrophysics … the first bridges the macroscopic and microscopic worlds, and provides the basis for the zero-th law of thermodynamics; the second is in the [...]

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(6.022)14(1991747723)

Faraday constant =  6.022141991747723  X 10+23 e mol-1 =  9.65 x 10+4 coulombs per mole. Here is an excerpt from Matt William’s article on the Faraday constant in Universe Today… “When it comes to science, a system of measurements is an absolute necessity, at least where one wants to proceed from theory to practice. This [...]

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  • Countdown to Powers of Ten Day

    • 10/10/10 1291 days ago