If you move at high speed, time slows down, space squashes up and you get heavier. Travel fast enough and you could weigh as much as a jumbo jet, be flattened thinner than a CD without feeling a thing - and live forever! As for the angles of a triangle, they do not always have to add up to 180 degrees. And then, of course, there are black holes.... These are but a few of the extraordinary consequences of Einstein's theory of relativity.
"Trains, Flashlights, Rockets, and Twins."
Book One in the best-selling 'Uncle Albert' science/adventure series. Famous scientist Uncle Albert and his niece Gedanken enter the dangerous and unknown world of a thought bubble. Their mission: to unlock the deep mysteries of time and space... In this action-packed adventure story, discover why you can't break the ultimate speed barrier and find out how to become older than your mother, how to put on weight without getting fat, and how to live forever without even knowing it.