He agreed it would be cheaper and easier to buy black powder at a store.
Reid also had a safety fuse containing black powder, a U.S. government official said.
"As soon as I saw the video of the explosion, I said that looks just like black powder, " Mr. Conkling said.
The ingredients included sugar and a black powder made from match heads.
Common uses for black powder include as gunpowder in muzzle-loading guns, as a blasting powder and as a propellant in rockets for fireworks.
Black Powder Media showed up at our double-wide HQ with a couple Bluetooth Impulse Controllers on hand for us to play with.
ENGADGET: Black Powder Media's Impulse Controller hands-on (video)
These are wrapped in carbon nanotubes - tiny "straws" of pure carbon that are renowned for their electrical properties - and coated with a platinum black powder.
Investigators determined the explosives used were crudely made bombs, built into pressure cookers using black powder explosive and made more lethal by using nails and pellets, a lawmaker said.
The bombs appeared to have been built by packing the pressure cookers with a black powder explosive as well as nails and pellets to maximize casualties, a lawmaker briefed by investigators said.
Much larger quantities of black powder and similar low-grade explosives can be purchased at gun stores and other outlets, he said, and would have been a simpler and cheaper way for the alleged bombers to procure explosive material.
Soon the trees disappeared, the gradient increased and the soil became black and powder-fine.
There are a number of Deringer's pistols in the auction that come complete with their original black leather-covered cases, powder flasks, cleaning rods and other tools.
And while these works may seem ephemeral - often made from sand and mud rather than canvas and paint, their creators clearly expect them to survive beyond the next exhibition, leaving detailed instructions of how to recreate the work, and often rebuilding it themselves (as Turner nominee Karla Black did last week with her powder and make-up creation on the floor of Tramway).
First, black managers will be better able to sell things, from insurance to soap powder, to other blacks.
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