Beautiful photographs of the reaction between human blood and copper sulphate May 25, 2017May 25, 2017 bloodonsilk https://exploringtheinvisible.com/2017/05/17/blood-flowers-2017-media-my-blood-and-anhydrous-copper-ii-sulphate/ Via Sophie Weeks and written by ( I think) the Liberal Scientist / Simon Sublime Share this:Email Related