Why 𝗱𝗼 𝗼𝘂𝗿 𝘃𝗲𝗶𝗻𝘀 𝗹𝗼𝗼𝗸 𝗯𝗹𝘂𝗲 𝘄𝗵𝗲𝗻 𝗼𝘂𝗿 𝗯𝗹𝗼𝗼𝗱 𝗶𝘀 𝗿𝗲d?
Light from veins must penetrate through layers of skin and fat before it reaches the eyes of the observer. Since red and blue colors are of two different wavelengths, they penetrate the skin with different degrees of success. As a result of this, bluish-green light is reflected off the blood and reaches the observer’s eyes, making our veins appear blue.
Light from veins must penetrate through layers of skin and fat before it reaches the eyes of the observer. Since red and blue colors are of two different wavelengths, they penetrate the skin with different degrees of success. As a result of this, bluish-green light is reflected off the blood and reaches the observer’s eyes, making our veins appear blue.