It is a waste of time. Who has time to sit around reading books and then go "oh that was waste of my time". Just by your post alone, i can tell this book is waste of time and not worth reading nor can anyone convince me otherwise.
Just to enlighten you a little. The Bermuda triangle is not the only triangle in the world surrounded by mysteries. There is the Dragon triangle near Japan which fits the bill as well. Only reason Bermuda triangle got famous is because of Hollywood. Would your book say now that there are 2 triangles? First lets deal with these triangles. We know that Islam says that Iblis's throne is in the sea. We also know that in christianity the devil is depicted as a many with a donkey head and there are bunch of triangles related to that. Any black magic drawings seen in movies involve triangles. The free masons and Illuminati society also uses triangles. It would be very well that one or both of the triangles could be the base of the Iblish and his minions.
As for the UFO and jinn and science and dajjal. Jinns are refereed to spirits. They have the ability to fly,even go up to the nearest level of the heavens. They don't need technology to do all that. Their needs are different than ours. Secondly, the UFO could be one of two possibilities. One is that it is the jinns playing games on the foolish humans who believe in aliens or two, it is the work government organizations. We know the kuffar make deals with jinns in order to get the help of the jinns. Those who have spied on the free masons have come out and stated they have seen certain "people" working for the agencies for over 80 years now and have not aged a day. These "people" work in secrete laboratories with chemicals that do not even exist on the periodical table. The jinns have brought much stuff from space for these secrete agencies which would allow them to create new technology.
As for the dajjal. There's a hadith stating how christians were lost at sea and ended up on an island where they were taken to a cave in which a man was locked up in chains. This chained person asked them questions and informed them of what will happen in the future. The Prophet (s.a.w) confirmed that chained person to be the ad-dajjal. He is not some genius with super technology and medicine as you are suggesting in that book. He will have the ability to do things by the will of Allah. He will be given such powers as the greatest test for mankind. He will be able to move fast as the wind, to raise crops and bring rain. He will have jannah and hellfire but his jannah will be hellfire and his hellfire will be the real jannah. When shows up, the first day will be like a year, the 2nd day like a month, the 3rd like a week and rest normal days. This isn't done by some science and technology. This will happen do to rotation of the earth. That maybe a hiccup as a prelude to what will come later, rising of the sun from the west. As for raising the dead, there will be one boy he will kill to show the people his power. By the will of Allah he will kill the boy and bring the boy back to life. And then he will try to kill the boy again since the boy now knows the truth for the dead become acutely aware of the reality of the world, But he will be unable to do so. Purpose this was only to test the people who will worship and being to follow him.
So again, this book is a waste of time. I don't know which books you have been reading on this topic, apparently they are not the right ones. Try with some authentic islamic ones.