Author Archives: astroteacher

Infecting Students with Enthusiasm For Astrobiology

The virus that causes COVID-19 offers a teachable moment for thinking beyond our earthly limits In Kim Stanley Robinson’s novel Aurora (2015, Orbit Books), a starship undertakes a multi-generation voyage to the star Tau Ceti to colonize the moon of … Continue reading

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Looking Behind Abstractions

Very large and very small numbers are abstractions.  Frequently they are useful in illuminating some natural phenomena, however many people have a difficult time comprehending such numbers.  We don’t usually deal with these sorts of numbers in our everyday lives.  … Continue reading

Posted in Environmental Issues | 1 Comment

Perspective

Cultural perspective governs our approach to nature As a tool for artists, perspective made its appearance consistently sometime in the early 1400s.  It was not long before both linear and aerial perspective were utilized, giving depth and dimension to the … Continue reading

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Mask.

The COVID-19 pandemic has changed most everyone’s behavior. Particularly when it comes to personal protection. Unfortunately, people are generally inconsistent in their practice of safe behavior to limit the spread of the coronavirus. On my regular walks around San Francisco, … Continue reading

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