Fascinated: *openmouthagape*

“A ferrofluid (from the Latin ferrum, meaning iron) is a liquid which becomes strongly polarised in the presence of a magnetic field.”

“Corn starch is a shear thickening non-Newtonian fluid meaning that it becomes more viscous when it is disturbed. When it’s hit repeatedly by something like a speaker cone it forms weird tendrils.”

…and for you who wants to know exactly HOW TO DO IT AT HOME:

I forget everything around me when I watch stuff like that – the attempt to grasp it and failing at it….thinking…how can it be, no its a fluid that can’t…wait its not a fluid…aaaah.