Showing results by publisher "----RM Alexander" in Physics

Dark Emu argues for a reconsideration of the 'hunter-gatherer' tag for pre-colonial Aboriginal Australians and attempts to rebut the colonial myths that have worked to justify dispossession. Accomplished author Bruce Pascoe provides compelling evidence from the diaries of early explorers that suggests that systems of food production and land management have been understated in modern retellings of Aboriginal history, and that a new look at Australia's past is required.

To better put into perspective the various issues surrounding energy in the 21st century, you need to understand the essential science behind how energy works. And you need a reliable source whose focus is on giving you the facts you need to form your own educated opinions.

Whether pondering black holes or predicting discoveries at CERN, physicists believe the best theories are beautiful, natural, and elegant, and this standard separates popular theories from disposable ones. This is why, Sabine Hossenfelder argues, we have not seen a major breakthrough in the foundations of physics for more than four decades. The belief in beauty has become so dogmatic that it now conflicts with scientific objectivity: Observation has been unable to confirm mindboggling theories, like supersymmetry or grand unification, invented by physicists based on aesthetic criteria.

Would you like to know how the universe works? Scientists have been asking that question for a long time and have found that many of the answers can be found in the study of particle physics, the field that focuses on those impossibly tiny particles with unbelievably strange names - the hadrons and leptons, baryons and mesons, muons and gluons - so mystifying to the rest of us.

At the end of his career, Albert Einstein was pursuing a dream far more ambitious than the theory of relativity. He was trying to find an equation that explained all physical reality - a theory of everything. Experimental physicist and award-winning educator Dr. Don Lincoln takes you on this exciting journey in The Theory of Everything: The Quest to Explain All Reality. Suitable for the intellectually curious at all levels and assuming no background beyond basic high-school math, these 24 half-hour lectures cover recent developments at the forefront of particle physics and cosmology.

All the matter and light we can see in the universe makes up a trivial five per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced. Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together. That ’something' is dark matter - invisible material in five times the quantity of the familiar stuff of stars and planets.

Neil deGrasse Tyson has a talent for guiding readers through the mysteries of outer space with stunning clarity and almost childlike enthusiasm. This collection of his essays from Natural History magazine explores a myriad of cosmic topics. Tyson introduces us to the physics of black holes by explaining what would happen to our bodies if we fell into one; he also examines the needless friction between science and religion, and notes Earth's status as "an insignificantly small speck in the cosmos".

Alexander von Humboldt (1769-1859) is the great lost scientist: more things are named after him than anyone else. There are towns, rivers, mountain ranges, the ocean current that runs along the South American coast; there's a penguin, a giant squid - even the Mare Humboldtianum on the moon. His colourful adventures read like something out of a Boy's Own story.

Scientists tell us that ninety-six percent of the universe is unexplained dark matter and dark energy. Also, they admit that no unifying “theory of everything” exists in physics. This shaky foundation is the basis of modern thinking about the cosmos and Earth’s place in it. Something big seems to be missing. Thus, we’re left with no choice but to question the “consensus” cosmological model. Are we really flying through space on a spinning ball within an expanding universe, while free-falling around the Sun—all as a consequence of a “Big Bang” that supposedly occurred 13.8 billion years ago?

In a field known for startling ideas, the Many-Worlds Interpretation (MWI) of quantum mechanics may take the prize. It holds that parallel to our own world are a large number of other universes, almost identical to ours but with small variations. Copies of each of us inhabit a myriad of these worlds. But they are not us exactly; they share our past history, but they are different people who have unique futures. Although these realms are invisible and can’t communicate with each other, prominent physicists are convinced they must exist.

Welcome (back) to the mind-blowing world of What If? Unfazed by absurdity, Randall consults the latest research on everything from swing-set physics to airplane-catapult design to clearly and concisely answer his readers' questions. As he consistently demonstrates, you can learn a lot from examining how the world might work in very specific extreme circumstances. Filled with bonkers science, boundless curiosity, What If? 2 is sure to be another instant classic adored by inquisitive listeners of all ages.

From the dawn of history, a universal wisdom tradition has existed that explains humanity’s purpose in the cosmos and our relationship to the Master Source Consciousness. This mystical philosophy was harnessed by the ancient seers known as Gnostics, who were in direct contact with Source Consciousness. As Peter Canova reveals, not only do the ancient teachings of Gnosticism contain important spiritual truths, but they profoundly align with the modern sciences of quantum physics and psychology.

The United States, Russia, China, and other countries around the world have experienced contact with the phenomenon, as we will discover in War. Americans demand that their leaders reveal what they know. They demand disclosure. But what do our allies, and our enemies, know about the phenomenon and why have they not already disclosed? Why is this an international issue, and not just an American one? And what does that tell us about the phenomenon?

Your body is teeming with tens of trillions of microbes. It's an entire world, a colony full of life. In other words, you contain multitudes. These microscopic companions sculpt our organs, protect us from diseases, guide our behaviour and bombard us with their genes. They also hold the key to understanding all life on earth. In I Contain Multitudes, Ed Yong opens our eyes and invites us to marvel at ourselves and other animals in a new light, less as individuals and more as thriving ecosystems.

ALLwissen ist ein Podcast zu den großen Fragen aus Astronomie, Raumfahrt und Physik. Diese reichen von alltäglichen Fragen wie "Warum ist der Himmel blau?" und “Was genau sind eigentlich Sternschnuppen?” bis hin zu den komplexen Themen der Physik, wie der Relativitätstheorie und Dunkler Materie. Wir haben es uns zum Ziel gemacht, solche Fragen leicht verständlich, aber trotzdem wissenschaftlich akkurat, in knapp 20 Minuten zu beantworten. Ihr benötigt keinerlei Vorwissen, nur Interesse - den Rest erledigen wir 😉

Vous êtes-vous déjà demandé comment un chat peut être à la fois vivant et mort ? Pouvez-vous imaginer un monde où les particules interagissent instantanément à travers des distances infinies, défiant les limites de l’espace et du temps ? Si ces questions éveillent votre curiosité sur l’univers quantique, aussi rigoureux qu’insaisissable, alors ce livre est fait pour vous.

The Story of the Universe was inspired by a very old idea—that the universe is one river and that galaxies, stars, planets, and people are all whirls and eddies in the universal flow, arising in the universe as naturally as whirls and eddies arise in a fast-flowing river. The universe arose once upon a time in a place that created time and space. It spread in darkness like an exploding black hole until there was light. It was pure energy in pure symmetry—almost.

Gravity controls everything from the falling of an apple to the rising of ocean’s tides to the motions of the heavens above. If you’ve ever wondered how this most puzzling force works across our entire universe, you will be delighted by this 24-part course that is accessible to any curious person, regardless of your science education. No other product on the market presents the subject of gravity in as much detail as this course, which will follow the past 400 years of research and experimentation in the field.

Why can your foot move halfway to the brake pedal before you're consciously aware of danger? Why do you notice when your name is mentioned in a conversation that you didn't think you were listening to? Why are people whose name begins with J more likely to marry other people whose name begins with J? Why is it so difficult to keep a secret? Renowned neuroscientist David Eagleman navigates the depths of the subconscious brain to illuminate these surprising mysteries.

This is the story of a quest: to find a Theory of Everything. Einstein dedicated his life to seeking this elusive Holy Grail, a single, revolutionary 'god equation' which would tie all the forces in the universe together, yet never found it. Some of the greatest minds in physics took up the search, from Stephen Hawking to Brian Greene. None have yet succeeded. In The God Equation, renowned theoretical physicist Michio Kaku takes the listener on a mind-bending ride through the twists and turns of this epic journey: a mystery that has fascinated him for most of his life.