I’ve always been interested in LED lighting and, while it is making great strides towards becoming a highly efficient artificial light source, the lowly tube-light is still the least power-hungry domestic lighting source you can find; it just beats its … Continue reading →

Scientists at a British company, Ceravision, have developed an alternative light bulb which has an energy efficiency of 50% (compared to 5% for incandescents and 15% for fluorescent tubes). As if that’s not enough, this bulb should last for decades … Continue reading →

Researchers in Jordan seem to have identified Sodium Acetate as a simple, cheap and ecologically friendly way of sealing concrete which is not my favourite material for various reasons – one of them being that the steel bars inside are … Continue reading →