🧠 on Instagram: "The iodine clock reaction, discovered by Hans Heinrich Landolt in 1886, is a classic experiment that vividly demonstrates chemical kinetics. It involves a sudden color change from colorless to blue, illustrating the concept of reaction rates. This reaction occurs when two clear solutions are mixed, with one stage of the reaction taking longer, leading to a delayed color change. Widely used in classrooms, the iodine clock reaction offers a hands-on way to explore the factors inf

How Breathalyzers Work: Science Behind Alcohol Detection

Explaining The Universe on Instagram: "Follow (us) @ExplainingTheUniverse to learn something NEW every day 🧠💫 A dam is a barrier built across a river or stream to control the flow of water. By holding back water, dams create reservoirs that can be used for drinking water, irrigation, hydroelectric power generation, flood control, and recreation. There are several types—such as gravity dams (which rely on their weight to resist water pressure), arch dams (curved, transferring force into the val