Comparison of the electron beam energy distributions of the LaB6 nanowire-based electron source (blue), the conventional tungsten field emission electron source (red) and the conventional Schottky ...

Delta-gun shadow mask operation. By User:Tirante (Own work) [CC BY-SA 3.0], via Wikimedia Commons A shadow mask colour CRT has three electron guns, one for red, one for green, and one for blue.

Ion beam (IB) guns and electron beam (EB) guns are devices that emit charged particles (ions and electrons, respectively) directed in a beam which are used in surface analysis or preparation, particle ...

1364 - First recorded use of a firearm. 1380 - Hand guns are known across Europe. 1400s - The matchlock gun appears. Before the matchlock, guns were fired by holding a burning wick to a "touch ...

JEOL 2200FS (200 kV) electron microscope with a field emission gun, an in-column energy filter ... JEOL 2100 (200 kV) electron microscope with a LaB6 filament, a 3k x 4k Direct Electron Detector (DE12 ...

To accomplish this, the physicists behind the new study tweaked an electron gun until it produced a pulse of just one attosecond. These pulses hit the "sample" being studied, and as the electrons ...

Whether you frequent a local pool or are planning a trip to the beach, water guns are a great addition to your outdoor activities and promise endless fun. Plus, they aren't just for kids.

Lastly, the CIA's Deer Gun, a single-shot disposable pistol, proved impractical in combat. -These handguns highlight the ...

Firearms were the leading cause of death for children and teenagers in the United States for the third consecutive year, and homicides accounted for the majority of gun deaths among the age group ...

You’ll probably buy a lot of guns in your life, but you’ll only buy a few gun safes. That’s why it pays to do some research to find the right gun safe for you. There are a lot of common-sense reasons ...

The Browning M2 .50 Caliber Machine Gun, Heavy barrel is an automatic, recoil operated, air-cooled machine gun with adjustable headspace and is crew transportable with limited amounts of ...

Vice President Kamala Harris reminded Americans on Tuesday that she too is a gun owner. "Tim Walz and I are both gun owners. We're not taking anybody's guns away,” the Democratic presidential ...