As well as a carbon footprint, every item also has a water footprint. Knowing how much water it takes to make products is an effective way of being able to reduce your water footprint. Common items include paper (5.1 L), water bottles 1.3 - 5 L) cotton t
Ninjas used a system called Goshiki-mai, meaning Five Colored Rice, in which rice grains were painted red, blue, yellow, black or purple in order to leave coded messages or trails.
Curly hair may have offered evolutionary advantages
Studies suggest curly hair could have aided heat regulation and brain protection in early humans by trapping air and shielding the scalp from UV radiation more effectively than straight hair.
