Into the Unknown
The Quest to Understand the Mysteries of the Cosmos
-
-
4,5 • 4 đánh giá
-
-
- 19,99 US$
Lời Giới Thiệu Của Nhà Xuất Bản
A leading astronomer and gifted teacher takes readers on a wondrous tour—"perfect for anyone who enjoyed Astrophysics for People in a Hurry" (Publishers Weekly)—of how science confronts the big questions about the origins, destiny, and fundamental nature of our universe
Humans have learned a lot about the world around us and the universe beyond. We have made powerful insights and created profound theories about the universe and everything in it. Surely the ultimate theory must be waiting, just beyond our current knowledge.
Well, maybe. In Into the Unknown, astrophysicist Kelsey Johnson takes us to the edge of scientific understanding about the universe: What caused the Big Bang? What happens inside black holes? Are there other dimensions? She doesn’t just celebrate what we know but rather what we don’t, and asks what it means if we never find that knowledge. Exploring the convergence of science, philosophy, and theology, Johnson argues we must reckon with possibilities—including those that may be beyond human comprehension. The very places where we run smack into total ignorance are the places where the most important questions—about the philosophy of knowledge, the nature of our cosmos, and even the existence of God—await.
As accessible as it is profound, Into the Unknown invites each of us to join in the great quest for knowledge.
PUBLISHERS WEEKLY
In this mind-bending inquiry, Johnson (Constellations for Kids), an astronomy professor at the University of Virginia, investigates unanswered questions about the universe. Surveying theories of "what caused the Big Bang," Johnson explains that some scientists have proposed our universe was "created inside of a supermassive black hole formed in a parent universe," while others, following the precepts of string theory, suggest our universe may have arisen from the collision of other universes suspended in a higher dimension. The difficulty of proving such theories means scientists must often settle for ruling out alternatives, Johnson writes, explaining that physicists no longer think neutrinos or black holes could constitute dark matter because calculations have revealed neither are abundant enough to account for dark matter's gravitational effects. (The most likely culprits include hypothetical particles of gravitational energy capable of moving between dimensions.) Elsewhere, she discusses how debates over whether the laws of nature "could not have been otherwise" raise thorny metaphysical questions about free will. Heady ideas jump off nearly every page, and Johnson has a talent for describing them in breezy, conversational prose. This is perfect for anyone who enjoyed Astrophysics for People in a Hurry.
