CavalryHillMay 24, 20181 min readWWII -- Schwerer Gustav (The Biggest Gun Ever Used In Combat)The Biggest Rail Gun ever used in combat Belongs Nazi Germany Why it was built : Before the War beginning , Adolf Hitler required a...
CavalryHillMay 23, 20181 min readAncient History -- Baghdad BatteryIt is a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. Now in Iraq Museum (There...
CavalryHillMay 23, 20182 min readPeriodic Table -- HydrogenDiscovered by Henry Cavendish in 1766* Atomic number : 1 Atomic mass : 1.007825 g/mole Melting point : - 259.2 °C Boiling point : - 252.8...
曹懷勳Feb 14, 20181 min readAnimal-DogDog is people's best friend. They can bring us happiness and warmth. If you like them,be careful don't give they eat chocolate,because...
CavalryHillJan 28, 20181 min readAncient History -- Wari CivilizationThe Wari Civilization flourished in the coastal and highland areas of ancient Peru. Live between 450 and 1000 CE. Based at their capital...
CavalryHillJan 24, 20181 min readUniverse -- How Small the Earth IsCome see the Video to know how large the universe is (astronomers Known only) The picture taken on Moon (upon) The picture taken on Mars...
