What is the name of the machine that fails and essentially dooms mankind in the beginning of the first Half-Life game?

The machine that fails and essentially dooms mankind in the beginning of the first Half-Life game is called the Anti-mass spectrometer. This device plays a pivotal role in the Black Mesa Research Facility, where protagonist Gordon Freeman works. The catastrophic event occurs when an unexpected resonance cascade develops during an experiment with the Anti-mass spectrometer, resulting in a portal opening to alien dimensions. This event leads to the subsequent invasion of Earth by various hostile creatures, setting the stage for the game's action-packed storyline.