The first American dream traditionally is owning your own home — but some might say the second is having a pool in the backyard of that dreamy house where you can swim, entertain and enjoy ...
Cape Town - The City of Cape Town’s Directorate for Energy’s R3.5 million investment in energy-efficient LED lighting for Khayelitsha, aiming to enhance safety and reduce energy consumption ...
These are simple devices, with an infra-red emitter and a photo-transistor, both facing upwards, but work at an unusual wavelength. “These contain both emitters and detectors for 940nm wavelength,” ...