Best Online Colleges 2016 â 2017. Hundreds of respected colleges and universities now offer many degree programs from certificate to bachelorâs to doctorate entirely online. These courses have the flexibility synonymous with online learning while maintaining academic rigor and student supportive services at a distance.
Solar Energy. Definition of electronics: Electronics is the branch of science that deals with the study of flow and control of electrons (electricity) and the study of their behavior and effects in vacuums, gases, and semiconductors, and with devices using such electrons.
What's in electronic devices? Electronic devices are a complex mixture of several hundred materials. A mobile phone, for example, contains 500 to 1000 components. Many of these contain toxic heavy metals such as lead, mercury, cadmium and beryllium and hazardous chemicals, such as brominated flame retardants. Polluting PVC plastic is also frequently used.