Down at the very base of it, there's fiber optics that work better than ours, actually, to move light, but you can tie them in a knot; they're incredibly flexible.
Sampai ke ujung tubuhnya ada serat optik, bekerja lebih baik dari serat optik kita dalam memindahkan cahaya, tapi Anda dapat menyimpul serat itu, mereka sangat lentur.