Isotropy and anisotropy: When a material is attacked by a liquid or vapor etchant, it is removed isotropically (uniformly in. all directions) or anisotropic etching (uniformity in vertical direction).
Some Questions Do Remain: 1  If the Earth was flat, we could travel to the place where the Earth and sky met. But we canât. 2  If the Earth was flat, we could reach the place where we could reach out and touch the Sun. But we canât. 3  If the Earth was flat, we could fall off the horizon. But we donâ 4 t. If the Earth was flat, it would simply fall.
If he wants to think Earth is flat, go right ahead -- as long as he continues to play basketball and not become head of any space agencies. My point is if you have certain limitations of understanding of the natural world, stay away from jobs that require that, he told TMZ. Irving seems unperturbed.