Interviewer (yeah, really me, talking to myself) So what's all this then?
Cris: Well, I had this epiphany while watering my goats....
Interviewer: Um, does it involve any burning bushes or signs from Heaven?
Cris: No, nothing of that sort. You see, I turned on the hose, and it has a leak, you see. A little leak. I've tried to fix it, but it sprung another leak. It's had this leak for ages.
Interviewer: Okaaay...and this has what to do with geology?
Cris: Well, I live in Southern California. The ground is really, really hard here. Harder than lots of sedimentary rocks. So hard you need a backhoe to dig your garden. I could spend all day with a shovel and never get anywhere, certainly not to China.
Interviewer: That's a bit geological, then. Is there more?
Cris: Of course, we haven't even gotten to the best part! You see, the water comes out of the leak pretty slowly, and the hose is only on for 5-10 minutes at a time. But look at the canyon it's carved! I predict that, in 4.7 million years, if I let the hose trickle all the time, I could have the Grand Canyon in my backyard. But I think my husband would complain about the water bill.
Interviewer: That really does look a bit like the Grand Canyon in miniature. Why not just bring in a big tanker truck full of water and let it all loose here? Then you might at least have enough of a canyon to go whitewater rafting in.
Cris: I don't think that would work too well. I think if you dump out all the water at once, it won't carve a nice canyon. It will spread out over the ground and drain away. It might form some small channels, but not the Grand Canyon. Here, let's try it. OK, I have a large volume of water here, scientifically equal to the amount necessary to fill one empty Tidy Cat container. So here comes the deluge! Thunder and lightning please!
Interviewer: Hmm, that doesn't look like the Grand Canyon at all, does it?
Cris: Not at all. It does look a bit like the area surrounding Mt. St. Helens, though.
Interviewer: That it does.
Cris: Well, I am just glad that a leaky old garden hose could give such an eloquent lesson in geology.