The balance of safety and efficiency is at the core of all engineering technologies

Remember a teacher who gave us a training class is a overnight old gentleman, after the door out a bunch of parts placed on the podium, an alcohol lamp, a small kettle, a blade, a small copper shiny motor, a small light bulb. The old gentleman poured some water into the jug, lit the alcohol lamp, and in a moment the water opened, the steam was sprayed from the spout, the blades were rotated, and then the small light bulb lit up.

"This is the power plant," he said.
"If it burns coal, it's a coal-fired power plant; if it burns gas, it's a gas plant," he added.
If the way to obtain thermal energy is nuclear fission, this is the nuclear power plant; If the energy that drives the blades comes from the water flowing from the high to the lower, this is the hydroelectric plant.
You may ask, "How complex the power plant we see," the old gentleman said, "The answer is simple: power projects require complex systems, one to ensure security (Safety), and two to improve efficiency (efficiency)."

The balance of safety and efficiency is at the core of all engineering technologies