longwall method

Directory

References

Images

A longwall miner shearing coal at the face of a coal seam; from an underground mine in southern Ohio, U.S.

Discover

Hemp (Cannabis sativa).

9 Mind-Altering Plants

The Lost Colony of Roanoke, North Carolina, where 115 people mysteriously disappeared c. 1590. John White discovers the word Croatoan carved onto a tree upon his return to the deserted Roanoke Colony in 1590

The Lost Colony of Roanoke

Malayan Leaf Frog - Megophrys nasuta

9 Animals That Look Like Leaves

Washington, D.C. locator map.

What State Is Washington, D.C. In?

A tornado in rural Iowa sweeps dangerously near a farm. Weather storm

Why Does the United States Have More Tornadoes than Any Other Country?

Ruminant. Deer. Red deer. Cervus elaphus. Buck. Stag. Antlers.

9 of the World’s Deadliest Mammals

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

longwall method: Media

coal mining

Images

A longwall miner shearing coal at the face of a coal seam; from an underground mine in southern Ohio, U.S.

A longwall miner shearing coal at the face of a coal seam; from an underground mine...

Joy Technologies Inc.

coal mine

coal mine

Schematic diagram of an underground coal mine, showing surface facilities, access...

CONSOL Coal Group