Radioactive Rocks

Pink granite rock in garden
Pink Granite

I’ve been reading archived newspapers from 1979, a time in my life when I didn’t pay too much attention to world events. Now that I’m doing my bit for recorded history, I enjoy reminding myself, or educating myself, on vaguely remembered moments from the years I actually lived through. I came across a piece in the New York Times, that had Senator John Glenn being shown the facade of a Washington building, and told by his guide that there was more radiation emanated by the granite than was detectable in the air around Three Mile Island (the accident occurred March 28, 1979). 

That made me curious about my favorite garden rock, above. I learned, doing a little research, that pink and red granites give off more than greys and blacks—a combination of radon gas and gamma rays, chiefly. Unfortunately, a Geiger counter won’t detect levels in granite reliably, if at all, due to ordinary background radiation in the environment. And the other machines, for non-professionals, are too expensive to buy. So I guess I’ll never know how powerful my pink rock is.

(If you have granite countertops, don’t worry. Here is a PDF from the Health Physics Society explaining more.)

Photo of a hawk print
Hawk’s Print

Above, a thing you don’t see often, since birds of prey don’t walk on the ground. But they do rocket down from the treetops onto passing squirrels and rabbits. At night, I seem to have a lot of owl activity around my ground feeder as well, to judge by the number of pellets I find. I don’t know what comes out, whether it’s mice or flying squirrels…but whatever they are, they aren’t very wary. The owls seem to be picking them off constantly. 

Brilliant Sunset
Brilliant Sunset

And finally, a super sunset from November 13.

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s