This captivating experiment demonstrates capillary action. The paper towels are made of fibres, which, due to their nature, can pull water upward, against the force of gravity. As the coloured water travels through the fibres, it moves from one cup to another, leading to a delightful mix of colours in the middle. It's like art and science combined! #TheDadLab #scienceisfun #scienceexperiments | TheDadLab

Capillary Refill Test: A Simple yet Effective Measure for Blood circulation The capillary refill test (CRT) is a quick and non-invasive assessment tool used to evaluate blood circulation and hydration status. Here’s how it works: 1. Press on a fingernail or toenail bed for a few seconds to blanch the skin 💅. 2. Release the pressure and observe the time it takes for the skin to return to its normal color ⏱️. 3. A normal capillary refill time is usually less than 2-3 seconds ⏱️. What does it indi