A tantalizing, probing inquiry into the possibilities of alien life.
Have we been visited by aliens?
Harvard astronomer Loeb believes we have, basing his assertion on “evidence…collected over eleven days, starting on October 19, 2017,” at a Hawaiian observatory. That’s when the author, the director of the Black Hole Initiative and the Institute for Theory and Computation, and his fellow scientists unexpectedly observed the “first known interstellar visitor.” It was a small object: “highly luminous, oddly tumbling, with a 91 percent probability of being disk-shaped.” Moving roughly 58,900 miles per second, it “passed through our solar system and, without visible outgassing, smoothly accelerated from a path that deviated from the force of the sun’s gravity alone.” Loeb and his colleagues named it “Oumuamua,” a Hawaiian word that roughly translates to scout. Though the scientific debate continues, writes the author, “the likelihood of scientists ever observing demonstrable proof is very remote.” Loeb meticulously analyzes the evidence they have so far: No “confirmed interstellar object had ever been observed in our solar system,” and it wasn’t a comet or asteroid. Further research revealed that it rotated every eight hours and was approximately 100 yards long and less than 10 yards wide. Its unique, “smooth and steady” acceleration and deviation from the sun led the author to a hypothesis that charmed the media but generated “intense controversy and pushback” from other scientists. Loeb also delves into the object’s spin rate, unchanging rotation, and the possibility that it might be another civilization’s space hardware. After all, we’ve been “junking-up” space for years. Loeb issues a clarion call for a team of astro-archaeologists to increase research into possible alien life; unfortunately, the “conservative scientific community” has always fought against such research. It’s hard to argue with the author’s claim that it’s the “height of arrogance to contend that we are unique,” and he even speculates that life on Earth may be of Martian or interstellar origin.
A tantalizing, probing inquiry into the possibilities of alien life.Pub Date: Jan. 26, 2021
ISBN: 978-0-358-27814-6
Page Count: 240
Publisher: Houghton Mifflin Harcourt
Review Posted Online: Sept. 23, 2020
Kirkus Reviews Issue: Oct. 15, 2020
BOOK REVIEW
A straightforward, carefully detailed presentation of how ``fruit comes from flowers,'' from winter's snow-covered buds through pollination and growth to ripening and harvest. Like the text, the illustrations are admirably clear and attractive, including the larger-than-life depiction of the parts of the flower at different stages. An excellent contribution to the solidly useful ``Let's-Read-and-Find-Out-Science'' series. (Nonfiction/Picture book. 4-9)
Pub Date: Jan. 30, 1992
ISBN: 0-06-020055-3
Page Count: 32
Publisher: HarperCollins
Review Posted Online: May 19, 2010
Kirkus Reviews Issue: Dec. 15, 1991
A pleasant, amusing look at mathematics as a description of everything.
A math prodigy examines how mathematicians view the world.
Math enthusiasts have a spotty record explaining their favorite subject to a popular audience, even when they exert themselves to hold attention with calculating tricks, paradoxes, or illusions. Beckman, who entered Harvard at age 15, eschews them all, maintaining that everything—“plants, love, music, everything”—can be understood in terms of math and proceeds to explain how mathematicians try. They love to overthink things. “We take some concept everyone understands on a basic level, like symmetry or equality, and pick it apart, trying to find a deeper meaning in it.” His first example is a simple concept: shape. By the mathematical definition, a square and a circle have the same shape, but a figure 8 is different. It turns out that thinking about shapes is a major field of study called topology. Beckman admits that this has no practical significance, but it’s odd and interesting, and most readers will agree. There seems little to say about infinity, but this turns out to be wrong and pleasantly bizarre. If you remove any number of marbles from a bag containing infinite marbles, what’s left is still infinite. Adding one or 1 trillion—still exactly infinite. Infinity times infinity…the same. Is any quantity more than infinity? Yes; it’s called the continuum, and Beckman offers a fairly clear explanation. Ultimately, the author argues that math is not about numbers or equations but models. A model breaks down phenomena into specific rules that, when applied, explain it. A few simple rules produce a quasi-game remarkably similar to Darwinian natural selection. Beckman concludes with a model of an empty space containing 17 particles that follow well-defined if absurd rules, but the end result is the “standard model,” physicists’ best interpretation of how the universe operates.
A pleasant, amusing look at mathematics as a description of everything.Pub Date: Oct. 27, 2020
ISBN: 978-1-5247-4554-7
Page Count: 224
Publisher: Dutton
Review Posted Online: June 12, 2020
Kirkus Reviews Issue: July 15, 2020
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