based on the concept of the variation of science fields from perspectives of (micro and macro), (living and non living), (classical and modern) and (theoretical and practical) this design is based on 4 main building blocks
-Apple this one is going back to newton and describes the classical and theoretical science
-DNA thread this one is about living part of science which is the building unit of all the living organisms
-Molecular structure this one is mostly related to micro scale science and nano technology revolution that its building unit is on the molecular level
-Galaxy it's now about space another field of science that is based on modern theories