Think Witus on Instagram: "Firecracker Mechanisms Explained 🎆 (Part 2) Ever wondered why some fireworks spin while others explode? The Chakri (spinning firecracker) is made by tightly rolling paper sticks filled with propellant. When it’s lit, the burning powder releases gas at high pressure, creating a rotational thrust that makes it spin in circles. On the other hand, the 555 bomb is packed with explosive powder that burns so fast it builds extreme pressure inside. That pressure bursts the sh