Aluminum oxide (Al2O3), also known as alumina, corundum, sapphire, or ruby, is one of the best insulators used in a wide range of applications: in electronic components, as a support material for ...
The terrifying unmanned craft have been labeled, 'Dracarys,' or 'Dragonfire,' in a reference to the High Valynarian language used in the fantasy show Game of Thrones. It is believed that the drones ...