The identification of a single case of bird flu virus H5N8 on a duck farm in East Yorkshire led to the immediate enforcement of a 10km containment zone last week. Within just 24 hours, officials […]
Science | Why are veins blue?
It is fact that blood is always red so why do the veins transporting it appear blue? Within the body the varying tissue layers absorb light of different wavelengths. Only blue wavelengths reach venous blood […]