For electric planes to really take off and for electric cars to travel far longer distances between charges, we'll need batteries that pack far more energy without becoming prohibitively heavy. A team ...

Scientists at EPFL have reimagined 3D printing by turning simple hydrogels into tough metals and ceramics. Their process allows multiple infusions of metal salts that form dense, high-strength ...

Heavy metals are relatively heavy and dense metals such as lead, mercury, and copper. Even with the same volume, they are much heavier compared to light metals like aluminum and lithium. While it ...