As electronic devices become more compact and powerful, conventional methods for manufacturing electrical components simply won’t do. The problem lies in the fact that current systems require a huge battery and their components are too bulky.
However, that all could change, as engineers from the University of Cambridge have created an ultra low power transistor that can run for a long time without a power source.
MMicrowaves are radio waves with frequencies ranging from around 300 million cycles per second (300 MHz) to 3 GHz. RF. A standard measure of exposure for microwave energy is the Specific Absorption Rate (SAR) or rate of tissue energy absorption measured in watts per kilogram of tissue.
Microwave radiation leakage can damage human cells and tissues.
All appliances working on electricity produce a toxic electromagnetic field (EMF) of approximately 60 hertz. This is over and above potential microwave leakage from appliances or devices.
KORAPUT (ODISHA): In a bid to help students draw water from tubewells without manual operation, the administration in Koraput district has decided to introduce solar energy powered pumps in 151 residential schools for SC and ST students and 50 high schools.