Headlines
Published On:2014/12/16
Posted by Ali Alsayed

If blood is red, why are veins blue?

If blood is red, why are veins blue?

Did you think before why? today you will Know why .... Read More

Blood is bright red in its oxygenated form and a dark red in deoxygenated form. In simpler terms, it is bright red when it leaves the lungs full of oxygen and dark red when it returns to the lungs for a refill. Veins appear blue because light penetrating the skin is absorbed and reflected in high energy wavelengths back to the eye. Higher energy wavelengths are blue.

By: Samia

About the Author

Posted by Ali Alsayed on 8:03 PM. Filed under . You can follow any responses to this entry through the RSS 2.0. Feel free to leave a response

By Ali Alsayed on 8:03 PM. Filed under . Follow any responses to the RSS 2.0. Leave a response

0 التعليقات for "If blood is red, why are veins blue?"

Post a Comment

Follow by Email

زوار الموقع

    Blog Archive