د/محمد عبد الوهاب
-The book is available on this link
https://www.amazon.com/dp/1091417393/ref=sr_1_1?keywords=books+speed+of+light+is+increased&qid=1553562922&s=gateway&sr=8-1
To follow:
-facebook
https://web.facebook.com/mohamed.abdelwhab.5055
-researchgate
https://www.researchgate.net/profile/Mohamed_Abdelwhab
Source
The observer effect is explained
