Principle of gas discharge lamp

Gas discharge lamps operate through a three-stage process. First, when the lamp is connected to the power circuit, a stable self-sustaining discharge occurs. Electrons emitted from the cathode are accelerated b.......

What is hydrogen energy?

Hydrogen is considered a secondary energy source and is often regarded as an ideal alternative energy. Although hydrogen is the most abundant element on Earth, it rarely exists in its pure form in nature. As a .......

What is hydrogen energy?

Hydrogen is a secondary energy source and considered one of the most promising new energy options. Although hydrogen is the most abundant element on Earth, it rarely exists in its pure form in nature. As a result, we need to extract it from various hydrogen-containing substances. The most commo.......

Post-quake search and rescue and safety precautions

In the wake of the 7.0-magnitude earthquake that struck Lushan County, Ya'an City, Sichuan Province on April 20th, the critical "Golden 72 Hours" have begun. During this time, every second counts for those trapped under the rubble. As rescue teams work tirelessly, it's essential to understand h.......