@historygraphic on Instagram: "Balloons are deceptively simple—flexible shells of latex, rubber, or plastic that swell with air or helium into bright, floating forms. They’re symbols of celebration, yet they’re also serious scientific tools. Weather balloons climb miles into the sky carrying instruments, while classrooms use them to demonstrate pressure, elasticity, and buoyancy in real time. What makes balloons fascinating is how unforgiving the physics behind them can be. Wall thickness, inter