Question

which is best insulator in world?​

Answer 1

wood , plastic and rubber.

Answer 2

$\huge\mathfrak\blue{aerogels}$

A: The best insulator in the world right now is most probably aerogel, with silica aerogels having thermal conductivities of less than 0.03 W/m*K in atmosphere. of aerogel preventing ice from melting on a hot plate at 80 degrees Celsius! Aerogel has its amazing properties because it's mostly made out of air.