One minute fun with knowledge_electronics

all of these

it can be used in blue ray disc

Blue is a primary color

A new invention

environmentally friendly lighting is made possible by it

Decided by electric field applied and temperature

Decided by electric field applied

always

Decided by ambient temperature

depends on the material

second law

no law of thermodynamics

zeroth law

third law

first law

semiconductor

polymer

semi metal

glass

Fairchild semiconductors

Bell telephone lab

Intel

Texas Instruments

all of them started by college drop outs

All started in garage

all of them have developed search engines

all are hardware companies