A SMART BIRD - how he manages to fly without rotating parts - just by flapping his wings?

The development of era is more advanced technologies .Such as, A bird is very agile to fly does not with rotating component .but,they fly by flapping its wings.

Propulsion components can be flied a bird is including a wingpan of about two metres,the length is one meter and and six and the weight ,it is only 450 grams ,carbon fiber,motor is in the middle,gear,three hall sensors.

Overall,it still rises up passive torsion to active torsion from 30% up to 80%.the next, it has to do is to control and regulate it. In order to get aerodynamic more efficiently

hi bismillah,

The development of era is ... (in this modern era, technology has been upgraded)
Such as, A bird is very agile to fly does not with rotating component (what is the relation within technology and a bird)

to summarize an article, better to have an understanding of the text or the speech perfectly
keep trying !

hi there ^°^
i would like to notice you some notes

>> write an essay that informs readers understand what you are trying to deliver.

>> modal can,could. has,have,will,would etc + V1 ( will go)

>>write it more specific>> the next, it has to do is to control and regulate it. In order ... >> in order to get aerodynamic more effectively,that components have to control and regulate the process by advance d technology

keep writing ^°^