White T-shirts get a lot of attention, but let’s not forget their equally versatile counterpart: the exceedingly wearable, deceptively simple black T-shirt. It’s a staple you can wear to work ...

The burning of anthracite coal requires appliances quite Afferent from those used for the burning of wood, or bitumin-)us coal, but the reasons for these differences, are not well un-lerstood by ...

It is often called “Black Gold”. Types of Coal • Anthracite (more than 80% carbon content) is the best quality of coal. In India, it is found only in Jammu and Kashmir. • Bituminous (60 to ...

Black poop can be harmless, caused by certain foods or medications, or it can be a sign of melena, meaning there’s blood in your stool. Melena happens when bleeding occurs in the upper digestive tract ...