PrepGuru 2025-09-28T19:11:13Z

Rain lashed against the terminal windows as I slumped in a vinyl chair, the fluorescent lights humming like angry bees. Fourteen hours into an unexpected layover in Frankfurt, my phone battery hovered at 18% and my sanity at half that. That's when I remembered the garish dice icon buried in my games folder - downloaded months ago during a bout of insomnia and forgotten until this moment of desperation.

My palms left damp streaks across the graphite-smeared paper as another futile hour evaporated. Partial differential equations blurred into visual static, their symbols taunting my sleep-deprived eyes. Engineering thermodynamics had become a wall of hieroglyphs - until I swiped open PrepGuru. Within minutes, its fluid simulation transformed abstract entropy principles into dancing particles I could manipulate. Watching heat transfer visualize in real-time as I adjusted variables, equations cease