science | facts | nature on Instagram: "Day 2 of the challenge, Daily dark side of earth . This escalator suddenly sped up without warning. A normal ride turned into panic within seconds. The incident occurred at a university in Bangladesh. A technical malfunction caused the escalator to accelerate beyond its normal speed. Escalators depend on motor controls, speed governors, and braking systems. Sudden acceleration points to a failure in one of these safety mechanisms. As the speed increased, s