A medication prescribed for Parkinson’s and other diseases can transform a patient’s personality, unleashing heroic bouts of creativity or a torrent of shocking, even criminal behavior
Millions of people struggle with insomnia, but the sleep disorder is now a solvable problem – and the most effective therapy might involve your smartphone rather than sleeping pills
Rebecca Wragg Sykes on the objects that reveal the Neanderthal mind
A third of scientists working on AI say it could cause global disaster
What’s the best recipe for bubble mixture? Scientists have the answer
Research over the past decade in Alaska’s Aleutian Islands has offered surprising insights into the pulses of great earthquakes that generate dangerous, often long-distance tsunamis.
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.
A family tree of sea cows suggests that the dugong traversed an ocean to reach its present habitat.
Builder drones
Ground-based robots have potential for helping in the construction industry, but they are limited by their height. In this week’s issue, Mirko Kovac, Robert Stuart-Smith and their colleagues introduce highly manoeuvrable aerial robots that can perform additive 3D construction tasks. Inspired by natural builders such as wasps and bees, the researchers created BuilDrones (as shown on the cover) that can work in an autonomous team to perform 3D printing tasks using foam- or cement-based materials. They also created ScanDrones to assess the quality of the structures
being built. The team hopes that this approach of ‘aerial additive manufacturing’ could help to build structures in difficult to access areas.
The cover shows an artist’s impression of Mbiresaurus raathi, a newly discovered species of herbivorous dinosaur found in Zimbabwe and dating to around 230 million years ago.
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