Category: 3-BookTalkDaily

A celebration of the seemingly simple idea that allowed us to imagine the world in new dimensions--sparking both controversy and discovery.

The stars of this book, vectors and tensors, are unlikely celebrities. If you ever took a physics course, the word "vector" might remind you of the mathematics needed to determine forces on an amusement park ride, a turbine, or a projectile. You might also remember that a vector is a quantity that has magnitude and (this is the key) direction. In fact, vectors are examples of tensors, which can represent even more data. It sounds simple enough--and yet, as award-winning science writer Robyn Arianrhod shows in this riveting story, the idea of a single symbol expressing more than one thing at once was millennia in the making. And without that idea, we wouldn't have such a deep understanding of our world.

Vector and tensor calculus offers an elegant language for expressing the way things behave in space and time, and Arianrhod shows how this enabled physicists and mathematicians to think in a brand-new way. These include James Clerk Maxwell when he ushered in the wireless electromagnetic age; Einstein when he predicted the curving of space-time and the existence of gravitational waves; Paul Dirac, when he created quantum field theory; and Emmy Noether, when she connected mathematical symmetry and the conservation of energy. For it turned out that it's not just physical quantities and dimensions that vectors and tensors can represent, but other dimensions and other kinds of information, too. This is why physicists and mathematicians can speak of four-dimensional space-time and other higher-dimensional "spaces," and why you're likely relying on vectors or tensors whenever you use digital applications such as search engines, GPS, or your mobile phone.

In exploring the evolution of vectors and tensors--and introducing the fascinating people who gave them to us--Arianrhod takes readers on an extraordinary, five-thousand-year journey through the human imagination. She shows the genius required to reimagine the world--and how a clever mathematical construct can dramatically change discovery's direction.

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Islam is a religion of violence and behind every Muslim there lurks a potential terrorist. Islam is a threat to values of the Christian West. They are like oil and water. Clearly, they don't mix.

One God and Two Religions: Christians and Muslims as Neighbors (Fortress Press, 2025) confronts these popular perceptions head-on. With keen insight and gentle understanding, Amir Hussain explores the differences between Christianity and Islam, as well as the many things these two enduring faith traditions hold in common - including, first and foremost, their belief in and desire to be faithful to the one, true God; their shared roots and scripture (from the Jewish faith); and the spiritual values of peace and social justice.

In all of this, the book invites the reader to a place of reconciliation, to a place where the truth and value of each of these great faith traditions can be recognized and honored by the other. In the end, the metaphor of oil and water is an interesting one for the reality of conflict and the hope for reconciliation between Islam and Christianity today.

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Is artificial intelligence going to take over the world? Have big tech scientists created an artificial lifeform that can think on its own? Is it going to put authors, artists, and others out of business? Are we about to enter an age where computers are better than humans at everything?

Linguist Emily M. Bender and sociologist Alex Hanna make clear that kind of thinking is a symptom of a phenomenon known as “AI hype.” Hype twists words and helps the rich get richer by justifying data theft, motivating surveillance capitalism, and devaluing human creativity in order to replace meaningful work with jobs that treat people like machines. In The AI Con: How to Fight Big Tech's Hype and Create the Future We Want (Harper, 2025), Bender and Hanna offer a, and wide-ranging take-down of AI hype across its many forms. They show you how to spot AI hype, how to deconstruct it, and how to expose the power grabs it aims to hide. Bender and Hanna expose AI hype for what it is: a mask for Big Tech’s drive for profit, with little concern for who it affects.

Alfred Marcus is Edson Spencer Professor at the Carlson School.

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Much of world history is Indian history. Home today to one in four people, the subcontinent has long been densely populated and deeply connected to Asia, Africa, Europe, and the Americas through migration and trade. In this magisterial history, Audrey Truschke tells the fascinating story of the region historically known as India--which includes today's India, Pakistan, Bangladesh, and parts of Afghanistan--and the people who have lived there.

A sweeping account of five millennia, from the dawn of the Indus Valley Civilization to the twenty-first century, this engaging and richly textured narrative chronicles the most important political, social, religious, intellectual, and cultural events. And throughout, it describes how the region has been continuously reshaped by its astonishing diversity, religious and political innovations, and social stratification.

Here, readers will learn about Hinduism, Buddhism, Jainism, Islam, and Sikhism; the Vedas and Mahabharata; Ashoka and the Mauryan Empire; the Silk Road; the Cholas; Indo-Persian rule; the Mughal Empire; European colonialism; national independence movements; the 1947 Partition of India; the recent rise of Hindu nationalism; the challenges of climate change; and much more. Emphasizing the diversity of human experiences on the subcontinent, the book presents a wide range of voices, including those of women, religious minorities, lower classes, and other marginalized groups.

You cannot understand India today without appreciating its deeply contested history, which continues to drive current events and controversies. A comprehensive and innovative book, India is essential reading for anyone who is interested in the past, present, or future of the subcontinent.

Audrey Truschke is professor of South Asian history at Rutgers University, Newark. She is the bestselling author of Aurangzeb: The Life and Legacy of India's Most Controversial King and other books.

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