/kloc-in the 1970s, Edison began to study electric lights. At that time, the main lighting tool used by people was kerosene lamp, which was not only dim, but also had potential safety hazards. Edison was determined to invent a safer and brighter lighting device.
He first tried to improve the existing arc lamp, but found that the arc lamp consumes a lot of electricity and has dazzling light, which is not suitable for home use. So he began to study a new way of lighting-incandescent lamp. The principle of incandescent lamp is to heat the filament with electric current to make it glow.
Edison experimented with thousands of materials, including various metals and plant fibers, trying to find a filament material with high temperature resistance, good luminous effect and long life. After numerous failures and attempts, he finally found the ideal material-carbonized cotton thread in 1879. When the current passes through the carbonized cotton thread, the light bulb emits golden light, illuminating the whole laboratory.
Inspiring sentences, have the courage to try, make mistakes and succeed.
1. On the road of life, every attempt and failure is the only way to success. Only by bravely facing challenges and constantly trying and correcting mistakes can we finally realize our goals and dreams.
2. Failure is not the end of life, but an opportunity to learn and grow. Only through constant trial and error and reflection can we make continuous progress and finally succeed.
Dare to try new things, even if you encounter setbacks and failures in the process, it is also an opportunity for growth and progress. Only by constantly surpassing ourselves in the challenge can we realize our dreams.
Every failure in life is a precious experience, which teaches us how to face difficulties and challenges better. As long as we keep courage and persistence, we can succeed.
Successful people don't never fail, but are not discouraged in the face of failure, dare to accept challenges, keep trying and working hard, and finally overcome difficulties and achieve goals.
Personality psychology is one of the branches of psychology, which can be simply defined as psychology that studies a person's unique behavior patterns.