



Camouflage used on WWI warships was intended to make it difficult for enemies to determine the speed and course of the boat
u/Blobatu — 13 days ago




I found this on Instagram and it made me think of what reaction may be used to achieve this type of look. I asked my chemistry teacher what she thinks it may be and she said that there can be different causes and isn't sure, but if she had to guess it's probably something with different pHs.
So, I'm here to ask if maybe someone has some idea of what may be the cause of the colour changing.