To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
DONT WASTE YOUR MONEY. JUNK JUNK JUNK JUNK. no description of specific parts that you need to buy in order to build the time machine. in order for a regular person to be able to build the time machine one needs a picture + name of the part + mesurments for every single part and pictures a lot of pictures... (not diagrams that only scientist understend) the guys like this one they make theyre money on the people that wants to travel thrue time but HAVE NO NOULADGE OR UNDERSTANDING HOW TO BUILT A TIME MACHINE. DONT Waste your money. I DIDNOT WANNA PUT ANY STAR ON THE STAR RATING BUT THE SYSTEM MADE ME DO IT.