Self-tutoring about the evolving oil business: the tutor mentions enhanced oil recovery. The following is according to my understanding. Generally, enhanced oil recovery means injecting a gas – for instance, CO2 – into an oil deposit to make the oil …
The tutor gives a nontechnical explanation of how a metal detector functions. Watching Curse of Oak Island on the History channel, you see them use metal detectors. How does a metal detector work? A basic explanation is this: The search …
Tutoring science, one might expect questions like these more often. The tutor seeks the answer to another childhood curiosity…. I remember seeing Mohs’ hardness scale when I was a kid. On it, quartz is 7, corundum 9, and diamond 10. …
Minerals: what is corundum? Rubies in Cape Breton, Nova Scotia Read more »