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Category Archives: gravity
In many of the stories we’ve read this semester, humans (and/or aliens) create and inhabit settlements or civilizations beyond earth – either in massive spacecraft or on other planets. Are there common characteristics of these settlements? Are there certain physical traits that these settlements exhibit that are unique? Are there certain social structures that foster […] Continue reading
Isaac Newton’s law of universal gravitation first appeared in the Philosophiæ Naturalis Principia Mathematica in July 1687. It describes why that apple fell on Newton’s head (as some stories would have it), why we stay rooted to the ground (without drifting off into space), and why the Earth is locked in orbit around the Sun (among … Continue reading Newton’s Law of Gravitation and General Relativity → Continue reading → Continue reading
Gravity has an affect on nearly everything in the entire universe. From galaxies, to solar systems, to planets and their moons, and even on the planets themselves (like the tides), if there are objects with mass then gravity is present. Newton’s Universal Law of Gravitation explains the effect of gravity between objects. Newton’s Law says … Continue reading Gravity’s Effect On Everything → Continue reading → Continue reading
Newton’s universal law of gravitation is a fundamental aspect of modern science. The law states that every mass is attracted to every other mass through a force known as gravity. The strength of the gravitational force between any two objects is directly proportional to the product of their masses, which means that increasing the … Continue reading The Universal Law of Gravitation Continue reading → Continue reading
The content of this post is based from an article on Space.com titled, “A Hungry Black Hole Devoured a Star, and Its ‘Burp’ Revealed How It Chowed Down”. So, yeah, this is about to be exciting. In the cataclysmic event known as ASASSN-14li, a star passed too close to a black hole. The enormous gravity … Continue reading Black Holes Eating Stars, Get Hungrier → Continue reading → Continue reading
All satellites in low Earth orbit will eventual fall victim to orbital decay. Over time, a satellite will lose orbital energy through drag caused by friction with the atmosphere. Many large satellites, such as the ISS, employ small thrust to counter out the effects of orbital decay. However, as shown by China’s space station, … Continue reading Orbital Decay and China’s Space Station → Continue reading → Continue reading
Gravitational waves!! Only recently detected even indirectly, they offer some evidence to support Einstein’s theory of relativity from the early twentieth century. The theory states that dense, heavy objects (like Earth, for example) distort space-time in the same way a marble would bend a normally flat stretch of fabric. When two extremely dense objects (such … Continue reading ~Gravitational Waves~ → Continue reading → Continue reading
The existence of dimensions beyond the three spatial and one temporal we experientially inhabit in our current model of spacetime has been a longstanding discussion touched on by various physicists and the scientific community. It has been suggested that gravity would propagate throughout these other dimensions, a thought brought about in attempts to somewhat unify … Continue reading Gravitational Waves and Extra Dimensions → Continue reading → Continue reading
Picture: Artist depiction of gravitational waves at work Gravity has long been one of the most transfixing ideas in our universe. For centuries, we have tried to crack the code of what exactly lies beneath our 9.8 meters per second squared. Since the apple first dropped on Newton’s head, we’ve been pining to understand … Continue reading gravity.wav → Continue reading → Continue reading
Up until recently, the only way we have been able to gather information about stars, galaxies, and the universe around us has been through the study of light. However, as of the last few years, the discovery of gravitational waves provides a new method of collecting information about the universe. Although gravitational waves were first … Continue reading Gravitational Waves → Continue reading → Continue reading