Elefantens Hvisker: En thailandsk kvindes livslange mission om at redde en reddet flok
Saengduean Lek Chailert was five years old when she first saw an elephant. The chained animal trudged past her home…
Category: Environment
Environment
Forskere kan have fundet en løsning på de trykbølger, der skyldes maglev-tog i tunneler.
Researchers believe they may have solved the “tunnel boom” issue as China prepares to introduce its newest magnetic levitation train…