I made indigo in a previous video, but it was almost insoluble in water. So, what I'm going to do, is chemically modify it to make it soluble. This new dye is called indigo carmine, and it's commonly ...

Shortly after news broke of Bob Weir’s passing at the age of 78, the Empire State Building commemorated the Grateful Dead co-founder with a special light tribute. “Tonight we will shine in tie-dye to ...