The research that led to the discovery and understanding of cathode rays involved many different scientists from several countries and spanned more than a decade. Today, devices ranging from the oscilloscope to the electron microscope to the television...

A cathode is the negative electrode of a battery or electrolytic capacitor. A cathode is also the reduction electrode in an electrochemical cell. Cathode rays are beams of electrons that emanate from acathode and are most commonly produced by heating a...

Cathode rays are streams of electrons observed in vacuum tubes, i.e. evacuated glass tubes that are equipped with at least two electrodes, a cathode (negative electrode) and an anode (positive electrode) in a configuration known as a diode. When the...

Computer screens Down the tubes THE trusty cathode-ray tube has picked up a few tricks since it was invented at the end of the nineteenth century. Yet the tube, which works by shooting electrons from a gun on to a light-emitting phosphor...

From A Word from our Viewers: Reflection from Early Television Audiences (Praeger, 2008), by Ray Barfield, an English professor at Clemson University. The following recollection is from Jack French, whom Barfield calls a "prominent figure in 'golden age radio.' " In the late...

Japanese electronics maker Canon will take full control of a joint venture for flat panel TVs using a new technology called SED, the company said Friday, in a move aimed at an early settlement of a legal dispute in the United States.Canon Inc. will turn...

Japanese stocks fell 1.2 percent Friday for the sixth straight session, driven down by a news report that Mizuho Financial Group Inc. expected to postpone the planned merger of two brokerages.The Nikkei 225 average lost 188.15 points, or 1.19 percent, to finish at 15,583.42 on...