In the wire arc process, air or an inert gas such as nitrogen is fed into a spray gun. The gas passes over melting wires and propels molten droplets onto the target. Heat source temperatures can run as high as 15,000 oF. Wire flame spray coating is a little different. A spark is used to ignite an oxygen and fuel mixture in a spray gun that is holding a metal rod.
by Marc S. Reisch | October 16, 2006
In the wire arc process, air or an inert gas such as nitrogen is fed into a spray gun. The gas passes over melting wires and propels molten droplets onto the target. Heat source temperatures can run as high as 15,000 oF. Wire flame spray coating is a little different. A spark is used to ignite an oxygen and fuel mixture in a spray gun that is holding a metal rod.
by Marc S. Reisch | October 16, 2006
—Ancient fossils in Greenland suggest evidence for microbial life from 3.7 billion years ago “Researchers discover conical formations they believe are stromatolites, a smoking gun for ancient life” Melting snow in Greenland has unveiled what might be the world’s oldest fossils. On the newly exposed, 3.7 billion-year-old rock, researchers led by Allen Nutman of the University of Wollongong found conical geological formations called stromatolites (see dotted lines), deposits made by ancient microbial life (Nature 2016, DOI: 10.1038/nature19355).
by Sarah Everts | September 05, 2016
But by the 13th and 14th centuries, the Chinese were wielding cannons and guns that harnessed the explosive power of gunpowder to hurl projectiles at enemy forces. Europeans soon learned of gunpowder and sought to make it themselves. But the availability of saltpeter, gunpowder's primary ingredient, remained the sticking point: Saltpeter is a by-product of soil bacteria that decompose decaying organic material, and China had plenty of it.
by Amanda Yarnell | January 17, 2005
TABLE OF CONTENTS TABLE OF CONTENTS September 4, 2000 Volume 78, Number 36 CENEAR 78 36 p. 3 ISSN 0009-2347 Quote of the Week "Genetics loads the gun, but the environment pulls the trigger." Richard R. Sharp, biomedical ethicist at National Institute of Environmental Health Sciences page 30 Chemical & Engineering News Copyright © 2000 American Chemical Society > cen 78 36
September 04, 2000
But by the 13th and 14th centuries, the Chinese were wielding cannons and guns that harnessed the explosive power of gunpowder to hurl projectiles at enemy forces. Europeans soon learned of gunpowder and sought to make it themselves. But the availability of saltpeter, gunpowder's primary ingredient, remained the sticking point: Saltpeter is a by-product of soil bacteria that decompose decaying organic material, and China had plenty of it.
by AMANDA YARNELL | January 17, 2005
Fletcher managed to wrestle the gun away from Petersen. The two victims survived the attacks. Dowdy is a professor of cellular and molecular medicine at the University of California, San Diego, and a Howard Hughes Medical Institute investigator. Traversa was founded on small interfering RNA (siRNA) delivery technology that Dowdy developed at UCSD.
by Alexander H. Tullo | September 27, 2013
Tullo business Dow Corning Photo of a researcher applying silicone on a testing thing with a caulk gun in a laboratory environment. Silicone caulk gun Dow to lay off 2,500 in wake of Dow Corning purchase Chemical & Engineering News Dow to lay off 2,500 in wake of Dow Corning purchase Dow to lay off 2,500 in wake of Dow Corning purchase
by Alexander H. Tullo | June 30, 2016
“I turned around the corner coming from my lab, and I see these guys in orange jumpsuits carrying submachine guns,” recounts Stefan Bernhard, an inorganic chemist who studies luminescent materials. “The next day, it was police officers—again with a bunch of submachine guns. “This has become the new normal: People running around with guns,” Bernhard adds.
by Carmen Drahl | August 29, 2011
Bennett noted that the plaintiffs’ case “stands on circumstantial evidence alone—there is no ‘smoking gun’ that explicitly reveals an agreement to conspire.” But circumstantial evidence could lead a jury to “infer a conspiracy.” Indeed, a “smoking gun” is rarely found in such cases, he wrote. /articles/91/i34/DuPont-Settles-Titanium-Dioxide-Pricing.html 20130822 Price Fixing: $72 million payout resolves charge of conspiring to rig prices for pigment News of The Week 91 34 /magazine/91/09134.html DuPont Settles Titanium Dioxide Pricing Lawsuit titanium dioxide, price fixing, law suit notw bus Marc S.
by Marc S. Reisch | August 22, 2013