In any scientific event, a topic related to Earth's gravity is hardly mentioned unless "Newton" is mentioned; That great philosopher who squared at the top of genius, and who is considered one of the most important who talked about gravity. And this book simplifies the subject of Earth's gravity, as it came from the tongue of "Newton", in a graceful style; Combines the philosophy that "Newton" used in reaching the proofs, and the simplified scientific method that the non-specialist reader understands, to find within the folds of the book a revelation of the deepest secrets of gravity, the secrets of nature, its rules, and names, and a solution to the mysteries that have long surrounded it. The writer added مُلحَقًا رامِيًّا لَبْرهنة the important gravity issues; So he made his book concise and complete, important for every researcher and interested in that important scientific issue.

نقولا حداد: من طلائع النهضة العربية، صحفيٌّ وعالمٌ وشاعر، ترأَّسَ تحريرَ عددٍ من الصحف العربية والمصرية مثل الأهرام والمقتطف، وله مجموعةٌ كبيرة من الروايات والمسرحيات ما بين المُؤلَّفة والمُترجَمة. عَمِل على ترويج أفكاره من خلال مطبوعتَي المقتطف والهلال.