Tag Archives: surface area

H2O

On March 22, 2012, people across the globe celebrated World Water Day.  Below are some interesting water facts from PBS.org and treehugger.com. 2.2 million (10+06) people die every year from diseases related to unsafe drinking water. On average, humans consume 16,000 gallons (10+04) of water in a lifetime–that’s 256,000 8oz glasses (10+05). The surface area [...]

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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-to-minus12

We can consider the power 10-12 from multiple perspectives.  A few of many examples are listed below: Mass of an average human cell (10-12 Kg) Lowest pressure obtained in laboratory conditions (10-12 pascals) Surface area of an E. coli bacterium (6×10-12 m2) Kinetic energy of a D-T fusion neutron (2.26×10-12 joules) Wavelength of gamma rays [...]

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  • Countdown to Powers of Ten Day

    • 10/10/10 1452 days ago