Just as grain size in silver halide film ultimately limits the amount of detail you can see in a photograph, the background noise produced by the sensor does much the same in digital imaging.

ECONOMIST: A die-hard analog photographer goes digital

In the business of shipping dry-bulk cargoes, mostly iron ore, coal and grain, there is not even the hint of a silver lining to the cloud.

ECONOMIST: Shipping

Any big price moves in the grain futures markets Friday may spill over into other commodity markets, including gold and silver.

FORBES: Comex Gold Up On Short Covering, Bargain Hunting, Bullish Outside Markets