How Everything Works on Instagram: "That blood you see splattering across the screen? It’s not real—but it’s not CGI either. It’s the work of special effects artists, who carefully craft fake blood using a mix of corn syrup, food coloring, and other secret ingredients to achieve the perfect color, thickness, and flow for each scene. The recipe can vary depending on lighting, camera type, and even the era of the film being recreated—older films often used darker, chocolate-toned blood to look bet

How Everything Works on Instagram: "Blood types are determined by molecules called antigens that sit on the surface of red blood cells. These act as identification markers, helping the immune system recognize which cells belong in the body. The main system for classifying blood is the ABO system, which divides blood into four groups: A, B, AB, and O. Type A has A antigens, type B has B antigens, type AB has both, and type O has neither. Another key component is the Rh factor, which indicates whe