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These are some stories from my life. I might write stories about other people also, if I write about you - I'll let you know. We are not sure where this is going. Did you know the LED was introduced as a practical electronic component in 1962!

A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness. Read more about LEDs here.

The purpose of an introduction in a psychology paper is to justify the reasons for writing about your topic. Your goal in this section is to introduce the topic to the reader, provide an overview of previous research on the topic, and identify your own hypothesis.

General Berlin, 2008-2010

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