Showing results for "H /-" in Earth Sciences

World renowned scientist, Dr. Gerald Pollack, takes us on a fantastic voyage through water, showing us a hidden universe teeming with physical activity - providing simple explanations for everyday phenomena, which you have inevitably seen but not really understood. Have you ever wondered how do clouds made up of dense water droplets manage to float in the sky? Why don't your joints squeak as they rub together? Why do you sink in dry sand, but not in wet sand? Pollack uses a recent and fundamental scientific finding - EZ water - to help explain these and many other head-scratchers.

Australopithecines, dinosaurs, trilobites - such fossils conjure up images of lost worlds filled with vanished organisms. But in the full history of life, ancient animals, even the trilobites, form only the half-billion-year tip of a nearly four-billion-year iceberg. Andrew Knoll explores the deep history of life from its origins on a young planet to the incredible Cambrian explosion, presenting a compelling new explanation for the emergence of biological novelty.

The growing concern about global environmental change and human impacts on the planet has led to the emergence of a broad field of study on the 'sustainability' of human societies. The term's common usage can be traced back to the advent of the Earth Summit in 1992 when 'sustainable development' was broadly embraced by the international community as an ostensibly win-win proposition for economic development, social inclusion, and ecological conservation. Yet both the natural science underpinnings and the social implications of a quest for sustainability have been diffuse.

The COVID-19 pandemic has brought forth global anxiety about linkages between the environment and society at a fundamental structural level. Earthly Order: How Natural Laws Define Human Life provides an accessible exposition of the latest foundational knowledge on how natural and social systems science can inform planetary crises. Humanity has either tried to conquer or capitulate to natural order, whereas we should be seeking to understand latent structures and patterns that permeate all systems and develop an "earthly order," that is socially functional and sustainable.

In Origins, Frank H. T. Rhodes explores the origin and evolution of living things, the changing environments in which they have developed, and the challenges we now face on an increasingly crowded and polluted planet. Rhodes argues that the future well-being of our burgeoning population depends in no small part on our understanding of life's past, its long and slow development, and its intricate interdependencies.

On Shishmaref Island in Alaska, homes are being washed into the sea. In the South Pacific, small island nations face annihilation by encroaching waters. In coastal Louisiana, an area the size of a football field disappears every day. For these communities, sea level rise isn’t a distant, abstract fear: it’s happening now and it’s threatening their way of life. In The Rising Sea, Orrin H. Pilkey and Rob Young warn that many other coastal areas may be close behind.

Da jorden blev dannet for 4,6 milliarder år siden, var den så varm, at intet levende kunne bo her. Det var bare en gold og stenet kugle. Men kometer af is blev ved med at bombardere planeten, så den til sidst blev afkølet og beboelig. Det skabte fundamentet for det liv, vi kender her på kloden. Så når vi tænder for vores vandhane eller tager en isterning ud af fryseren, så er det alt sammen, fordi en serie af kometer bestående primært af is bragte vand og materialer ned til jorden fra rummets fjerneste afkroge. Vi er ikke bare stjernestøv. Vi er smeltede iskrystaller.

HyperSpace is a breakdown-style podcast of all recent space events ranging from NASA to Roscosmos to SpaceX and everything in between. HyperSpace is designed to bring you up to date on all things space without taking out a major chunk of your day. There is no set schedule for HyperSpace, instead the episodes come in as activity happens, which is becoming more and more frequent in these exciting times. The only way space travel can succeed is for public support to persist and here at HyperSpace we hope to do our part to make that happen!