The previous owner of our West Seattle cottage left behind an ancient metal chiminea, which had drizzled a rusty stain onto the patio. But not just any rust stain: This one had really hit its mature ...

You're looking at an iron-oxide (rust) stain in a granite countertop that could be millions of years old. In my opinion, it's not a defect. (Courtesy of Tim Carter) (Tim Carter) Perspective by Tim ...

Although lumber does show promise as a renewable alternative to structural materials such as steel and concrete, it still tends to be a bit weaker than those substances. Scientists have now set about ...