About As Likely As A Lunar Footprint Getting Hit By Space Debris

Neil Armstrong and Buzz Aldrin’s footprints on the moon will never fade.  Until they get struck by a meteor or the sun expands.   Well, we know the sun will expand to engulf the Earth’s current orbit in approximately 5 billion years, but how likely is it that a meteor will wipe one of these footprints …

Star Colours

Human eyes can see wavelengths of electromagnetic radiation between 390 and 750nm.  Light at the long end of this range (~750nm) appears red while light at the short end (~390nm) appears blue or violet.  We call this range the visible spectrum for pretty obvious reasons; it’s the wavelengths of light that are visible to our …

Galactic Map

This week I downloaded an application called Exoplanets onto my iPhone.  Not only does it have a list of confirmed extra-solar planets (some 825 and counting in the database), but it also has the ability to plot the discoveries in terms of mass, density, distance, semi-major axis, and many other variables.  My favourite feature, however, …

Three Laws

My favourite author of all time is Isaac Asimov: he crafted the wonderful Foundation series, he penned (or type-writered) countless essays on the importance of science literacy and education, and he’s the mastermind behind I, Robot (remember: the plot of the Will Smith movie had very little to do with the original and amazing book …

New Theme

I haven't posted in a little while.  Last week I got busy and didn't have time to reflect on the things I had learned in the previous week, and a reflection from the week before did not jive well with the blog format.  It involved graphs created in MS Word.  Wordpress did not like these …

We Are Small

I like to think of myself as a moderately sized human.  I’m almost six feet tall and I weigh 80 kg.  I can lift heavy objects and reach the cookies on the top shelf.  I’m busy with university reading, homework, music, and all manner of other activities.  I think I’m pretty important.  Until I look …