It was Thomas Hooked but replace the d with an r
Almost all metals form polycrystals while amorphous single-crystal metals are created synthetically. What this means is that metal crystals are actually many crystals that bonded. This is what polycrystals are and how they are combined with metal crystals.
Answer:
he needs a therapist, not answers from brainly
Explanation:
psychology
He applied his skill in engineering to toughen up the defence