A sixth-form student has developed a way of heating water which could save lives. Seventeen-year-old Thomas Hu, from Lord Wandsworth College, and his friends were inspired to create a parabolic solar ...

The stoves - known as parabolic solar cookers - can boil up to eight litres of water in an hour, and come in ready-to-assemble kits with pre-punched parts to allow for cheaper production and compact ...