The goal of The Biggest Ideas in the Universe is to bridge the gap between popular-science treatments of modern physics and true expert knowledge. This is the real stuff — equations and all — presented in a way that presumes no prior knowledge other than high-school algebra. Readers will come up to speed about exactly what professional physicists are talking about, with an emphasis on established knowledge rather than speculation.
Volume One, Space, Time, and Motion, covers the domain of classical physics, from Newton to Einstein. We get introduced to Spherical Cow Philosophy, in which complications are stripped away to reveal the essence of a system, and the Laplacian Paradigm, in which the laws of physics take us from initial conditions into the future by marching through time. We learn the basic ideas of calculus, where we can calculate rates of change and how much of a quantity has accumulated. We think about the nature of space and time, separately and together. Finally we are introduced to the mysteries of non-Riemannian geometry and Einstein’s theory of curved spacetime, culminating into a dive into black holes.
Seasonal monsoon rainfall replenishes groundwater reserves in the Bengal basin of Bangladesh thanks to the region’s seemingly counterintuitive intensive dry-season irrigation practices, a new Science study finds.
On this week’s show: The U.S. government is partnering with academics to speed up the search for more than 80,000 soldiers who went missing in action, and how humans create their own “oxidation zone” in the air around them.
First up on the podcast this week, Tess Joosse is a former news intern here at Science and is now a freelance science journalist based in Madison, Wisconsin. Tess talks with host Sarah Crespi about attempts to use environmental DNA—free-floating DNA in soil or water—to help locate the remains of soldiers lost at sea. Also featured in this segment:
University of Wisconsin, Madison, molecular biologist Bridget Ladell Woods Hole Oceanographic Institution marine biologist Kirstin Meyer-Kaiser
Also this week, Nora Zannoni, a postdoctoral researcher in the atmospheric chemistry department at the Max Planck Institute for Chemistry, talks about people’s contributions to indoor chemistry. She chats with Sarah about why it’s important to go beyond studying the health effects of cleaning chemicals and gas stoves to explore how humans add their own bodies’ chemicals and reactions to the air we breathe. In a sponsored segment from Science/AAAS Custom Publishing Office, Sean Sanders, director and senior editor for Custom Publishing, interviews Benedetto Marelli, associate professor at MIT, about winning the BioInnovation Institute & Science Prize for Innovation and how he became an entrepreneur.
Measures to capture carbon in soil may be less effective than hoped, scientists say
Bioengineering soybean plants to improve regulation of photoprotection—a natural process that enables plants to cope with excess absorbed light energy—improved soybean seed yield by up to 33% in field trials.