Articles with tagged Gravity

inside black holes

Inside Black Holes

Researchers have connected the Standard Model of particle physics and Einstein's General Relativity theory to calculate the gravity inside a black hole. May 21, 2022 ... Our concept of the inside of a [ReadMore..]

gravity force

Gravity Force

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun. [ReadMore..]

expansion theory of the universe

Expansion Theory Of The Universe

This web exhibit from the American Institute of Physics explores the history of cosmology from ancient Greek astronomy to modern space telescopes. In the early 20th century the common worldview held t [ReadMore..]

acceleration of universe expansion

Acceleration Of Universe Expansion

Feb 3, 2015 ... Scientist who helped discover the expansion of the universe is accelerating ... In the late 1980s, astrophysicist Saul Perlmutter and his ... [ReadMore..]

physics of time and space

Physics Of Time And Space

Philosophical foundations of the physics of space-time This concise book introduces nonphysicists to the core philosophical issues surrounding the nature and structure of space and time, and is also a [ReadMore..]

time in quantum physics

Time In Quantum Physics

If Cher could turn back time she'd take back those words that hurt you. If we could turn back time you'd read this article twice. Dec 1, 2021 ... There's a lot of discussion about “time” in the wo [ReadMore..]

quantum physics theory of time

Quantum Physics Theory Of Time

Physicists describe a way to merge quantum theory with Einstein’s special theory of relativity—and even a method to test it experimentally Oct 23, 2020 ... Albert Einstein's twin paradox is one of [ReadMore..]

quantum physics time and space

Quantum Physics Time And Space

When you hear 'quantum,' you probably think of splitting everything into discrete, indivisible chunks. That's not necessarily right. Nov 8, 2019 ... Quantum doesn't necessarily mean that every propert [ReadMore..]

physics black hole

Physics Black Hole

In a landmark series of calculations, physicists have proved that black holes can shed information. Oct 29, 2020 ... In a landmark series of calculations, physicists have proved that black holes can s [ReadMore..]

gravitation theory

Gravitation Theory

Einstein struggled for years to solve the puzzle of general relativity. The pieces all fell into place in November 1915. Oct 4, 2015 ... GETTING A GRIP ON GRAVITY Einstein's general theory of relativi [ReadMore..]

is string theory proven

Is String Theory Proven

String theory isn’t complete. There are a vast number of different string theory solutions — literally billions of billions of billions of billions of different possible variants of string theory, [ReadMore..]

is string theory correct

Is String Theory Correct

Jun 12, 2017 ... Polchinski explained a computation that shows that string theory is 98.5% likely to be correct, going on to claim that the probability is ... [ReadMore..]

string theory experiments

String Theory Experiments

In a quest to map out a quantum theory of gravity, researchers have used logical rules to calculate how much Einstein’s theory must change. The result matches string theory perfectly. Jan 21, 2022 . [ReadMore..]

what happened to string theory

What Happened To String Theory

String theory has so far failed to live up to its promise as a way to unite gravity and quantum mechanics. At the same time, it has blossomed into one of the most useful sets of tools in science. Sep [ReadMore..]

has string theory failed

Has String Theory Failed

Physicist, mathematician and blogger Peter Woit whacks strings, multiverses, simulated universes and “fake physics” Apr 27, 2017 ... The internal problems of the theory are even more serious after [ReadMore..]

string theory disproved

String Theory Disproved

With any theory, it’s typically easier to disprove it than to prove it, although one criticism of string theory is that it may have become so versatile that it can’t be disproved. This article ass [ReadMore..]

big bang worksheet pdf

Big Bang Worksheet Pdf

The Big Bang Theory. (NOT the TV show!) OCBS. BAZI. 1) A redshift in the spectrum of the light coming from an object indicates the object is moving. [ReadMore..]

hole to another universe

Hole To Another Universe

'If you feel you are trapped in a black hole, don’t give up. There is a way out', said renowned physicist Mar 14, 2018 ... Stephen Hawking: Black holes may offer a route to another universe. 'If you [ReadMore..]

black hole to another universe

Black Hole To Another Universe

And, like cosmic Russian dolls, our universe may be nested inside a black hole in another universe, a new study suggests. Apr 12, 2010 ... According to a mind-bending new theory, a black hole is actua [ReadMore..]



Half time is the time taken by a quantity to reach one half of its extremal value, where the rate of change is proportional to the difference between the ... [ReadMore..]

newton's 3rd law of motion

Newton's 3rd Law Of Motion

This paper presents the process and implementation of Learning by Design Approach in teaching Newton’s 3rd Law of Motion. A lesson activity from integrative STEM education was adapted, modified and. [ReadMore..]

loop quantum gravity vs.string theory

Loop Quantum Gravity Vs.string Theory

Loop quantum gravity is string theory’s biggest competitor. It gets less press than string theory, in part because it has a fundamentally more limited goal: a quantum theory of gravity. Loop quantum [ReadMore..]

weird theories about life

Weird Theories About Life

Area 51, the JFK assassination, sightings of Bigfoot: These have sparked some of the most popular conspiracy theories countrywide. Nov 11, 2020 ... February 10, 1977, is a very important day in UFO co [ReadMore..]

gravity theory

Gravity Theory

Our modern understanding of gravity comes from Albert Einstein's theory of general relativity, which stands as one of the best-tested theories in science. [ReadMore..]

loop theory

Loop Theory

The perceptual loop theory of speech monitoring () claims that inner and overt speech are monitored by the comprehension system, which detects errors by comparing the comprehension of formulated utter [ReadMore..]

string theory vs loop theory

String Theory Vs Loop Theory

For starters, LQG studies bits of space-time, whereas string theory investigates the behavior of objects within space-time. Instead of being flat like a ... [ReadMore..]

loop theory universe

Loop Theory Universe

A physics paper proposes neither you nor the world around you are real. Apr 26, 2020 ... Now a new theory has come along that takes it a step further – what ... The physical universe is a “strange [ReadMore..]

quantum loop theory

Quantum Loop Theory

We describe the basic assumptions and key results of loop quantum gravity, which is a background independent approach to quantum gravity. The emphasis is on the basic physical principles and how one d [ReadMore..]

how was the sun formed

How Was The Sun Formed

Study suggests water may be more prevalent in universe than thought In fact, the team estimates that as much as 50% of the water now on Earth may have existed since before the birth of the sun 4.5 bil [ReadMore..]

how did the sun form

How Did The Sun Form

Dec 1, 2021 ... To find out more about how stars like our sun form, I talked to my friend Jose Vazquez, an astronomer at Washington State University. [ReadMore..]

perpetual energy machine

Perpetual Energy Machine

perpetual motion, the action of a device that, once set in motion, would continue in motion forever, with no additional energy required to maintain it. Such devices are impossible on grounds stated b [ReadMore..]

magnetic perpetual energy

Magnetic Perpetual Energy

Dennis Danzik has invented a whirligig that calls for the suspension of disbelief and the laws of physics. If real, it would rank with the harnessing of steam, electricity and the atom. May 16, 2019 . [ReadMore..]

is perpetual energy possible

Is Perpetual Energy Possible

Oct 6, 2014 ... Guns are based on chemical potential energy instead, and provide a much greater energy density. Fission atomic weapons are many orders of ... [ReadMore..]

black hole entropy

Black Hole Entropy

This implies black holes have an entropy. Page 6. For a solar mass black hole, the temperature is very low (T ~ 10-7 K) so it is astrophysically negligible. But ... [ReadMore..]

black hole temperature

Black Hole Temperature

The very idea that a black hole could have a temperature strains the imagination. I mean, how can something that absorbs all the matter and energy that falls into it have a temperature? When you feel [ReadMore..]

black hole entropy pdf

Black Hole Entropy Pdf

The proportionality between black hole entropy and area is derived from ... For black holes on the other hand, the corresponding Bekenstein-Hawking'2'31. [ReadMore..]

bekenstein hawking entropy equation

Bekenstein Hawking Entropy Equation

We derive the Bekenstein-Hawking entropy formula for four- and five-dimensional non-supersymmetric black holes (which include the Schwarzchild ones) b… Apr 27, 1998 ... We derive the Bekenstein-Hawk [ReadMore..]

black hole entropy formula

Black Hole Entropy Formula

We study the canonical $\mathrm{AdS}/\mathrm{CFT}$ correspondence between 4d $SU(N)$ $\mathcal{N}=4$ super Yang-Mills theory (SYM) and type IIB superstring theory on ${\mathrm{AdS}}_{5}\ifmmode\times\ [ReadMore..]

why does space exist

Why Does Space Exist

Roughly 70% of the Universe is made of dark energy. Dark matter makes up ... As more space comes into existence, more of this energy-of-space would appear. [ReadMore..]

singularity vs black hole

Singularity Vs Black Hole

They appear inside black holes and pose a big problem for physicists. What are singularities? Dec 9, 2015 ... They appear inside black holes and pose a big problem for physicists. What are singulariti [ReadMore..]

black hole singularity explained

Black Hole Singularity Explained

In the center of a black hole is a gravitational singularity, a one-dimensional point which contains a huge mass in an infinitely small space, where density ... [ReadMore..]

black hole singularity size

Black Hole Singularity Size

Jun 29, 2009 ... Such black holes generically contain a spacetime singularity at their ... is one that is both inextendible and of finite proper length, ... [ReadMore..]

einstein's theory of the universe

Einstein's Theory Of The Universe

A century ago Albert Einstein unveiled a theory that would change the world — general relativity. Here are five things that need general relativity to work, and may help you manipulate that mind int [ReadMore..]

string theory vs loop quantum gravity

String Theory Vs Loop Quantum Gravity

Aug 26, 2021 ... But, no Susy, no string theory. And, 13 years after the LHC opened, no sparticles have shown up. Even two as-yet-unexplained results ... [ReadMore..]

quantum physics and string theory

Quantum Physics And String Theory

The unification of Quantum Mechanics and General Relativity remains the primary goal of Theoretical Physics, with string theory appearing as the only plausible unifying scheme. In the present work, in [ReadMore..]

loop quantum physics

Loop Quantum Physics

An outstanding open issue in our quest for physics beyond Einstein is the unification of general relativity (GR) and quantum physics. Loop quantum gravity (LQG) is a leading approach toward this goal. [ReadMore..]

string theory quantum mechanics

String Theory Quantum Mechanics

In a quest to map out a quantum theory of gravity, researchers have used logical rules to calculate how much Einstein’s theory must change. The result matches string theory perfectly. Jan 21, 2022 . [ReadMore..]

gravity is not a force

Gravity Is Not A Force

When  we think of gravity, we typically think of it as a force between masses.  When you step on a scale, for example, the number on the scale represents the pull of the Earth’s gravity on your ma [ReadMore..]

who made the sun

Who Made The Sun

‘The song blew up at the end of summer 1989, by which time a whole generation were going to outdoor raves. What other record are you going to play at 5.30am?’ Aug 24, 2020 ... The Beloved: how we [ReadMore..]

is the universe a torus

Is The Universe A Torus

The idea that the universe has a 3D torus shape ties in to some pretty far-out stuff, like the CIA’s 1980s Gateway report on psychic phenomena. Jul 22, 2021 ... The idea that the universe has a 3D t [ReadMore..]



Gravitational lensing has developed into one of the most powerful tools for the analysis of the dark universe. This review summarises the theory of gravitational lensing, its main current applications [ReadMore..]

erik verlinde gravity

Erik Verlinde Gravity

A proposed theory of gravity does away with dark matter, even as new astrophysical findings challenge the need for galaxies full of the invisible mystery particles. Nov 29, 2016 ... In a dense 51-page [ReadMore..]

proof time does not exist

Proof Time Does Not Exist

In a new book published by the Oxford University Press, Australian Catholic University’s Dr. Sam Baron and his colleagues provide the first systematic analysis of the idea that time does not exist. [ReadMore..]

does time exist in space

Does Time Exist In Space

Andrew Jaffe probes Carlo Rovelli’s study arguing that physics deconstructs our sense of time. Apr 16, 2018 ... As Rovelli explains, the apparent existence of time — in our ... For example, it is [ReadMore..]

time does not exist

Time Does Not Exist

Over the course of my career, I have found more than 20 conditions that can lead to symptoms of ADHD, each of which requires its own approach to treatment. Raising a generation of children — and now [ReadMore..]

has string theory been proven

Has String Theory Been Proven

Many scientists have hoped string theory will one day lead to a unified theory of physics. But if it can’t, dark matter, dark energy, and cosmic inflation are in trouble. Jul 27, 2015 ... For more t [ReadMore..]

has string theory been proved

Has String Theory Been Proved

Because of these obstacles, the number of physicists working on the theory had dropped to two—Schwarz and Michael Green of Queen Mary College, London—by the mid-1980s. But in 1984 these two die-ha [ReadMore..]

string theory latest

String Theory Latest

Mathematicians are exploring a string duality between F-theory and heterotic string theory in eight dimensions. Aug 18, 2020 ... String theory is a theoretical framework from physics that describes on [ReadMore..]

superstring theory 10 dimensions

Superstring Theory 10 Dimensions

String theory claims the dimensions of space and time that we observe are a result of vibrations of microscopic energy strings. Mar 1, 2019 ... String theory claims the dimensions of space and time th [ReadMore..]

is string theory dead

Is String Theory Dead

329 votes and 77 comments so far on Reddit Apr 2, 2020 ... String theory doesn't seem to die anytime in the future. One of the main reasons people are doubting is because in the 30 odd years it has be [ReadMore..]

unsolved problems in physics

Unsolved Problems In Physics

Here is an overview of the five great problems in theoretical physics, as defined by theoretical physicist Lee Smolin in "The Trouble with Physics." May 30, 2019 ... Unsolved Problems in Physics Accor [ReadMore..]

quantum space

Quantum Space

Combining clear discussions of both quantum theory and general relativity, this book offers one of the first efforts to explain the new quantum theory of space and time.Today we are blessed with two e [ReadMore..]

shape of space time

Shape Of Space Time

Mar 21, 2003 ... Presuming spacetime is a curved manifold as portrayed by general relativity, translation in space can be accomplished simply by cyclic changes ... [ReadMore..]

real pictures of black holes in space

Real Pictures Of Black Holes In Space

The idea of a black hole - an object so massive that nothing could escape the ... A black hole is a true "hole" in space: Anything that crosses the edge of ... [ReadMore..]

black hole picture nasa

Black Hole Picture Nasa

tempA black hole and its shadow have been captured in an image for the first time, a historic feat by an international network of radio telescopes called the Event Horizon Telescope (EHT). Apr 10, 201 [ReadMore..]

space time theory

Space Time Theory

Synchronicity in the Human–Space–Time Theory of Nursing undergirds the innovative process of nursing engagement expressed as interpersonal relating, ... [ReadMore..]

einstein space time theory

Einstein Space Time Theory

This book, explores the conceptual foundations of Einstein's theory of relativity: the fascinating, yet tangled, web of philosophical, mathematical, ... [ReadMore..]

einstein time theory

Einstein Time Theory

Well, there's a good reason for this.... According to Einstein's special theory of relativity, objects gain mass as they accelerate to greater and greater ... [ReadMore..]

is gravity a force

Is Gravity A Force

‪Gravity Force Lab‬ is an interactive sim. It changes as you play with it. It has a Play Area and a Control Area. The Play Area has two mass spheres, ... [ReadMore..]

three laws of motion

Three Laws Of Motion

Law 3. If two bodies exert forces on each other, these forces have the same magnitude but opposite directions. The three laws of ... [ReadMore..]

is the universe curved

Is The Universe Curved

The 'holographic principle,' the idea that a universe with gravity can be described by a quantum field theory in fewer dimensions, has been used for years as a mathematical tool in strange curved spac [ReadMore..]

flat universe theory

Flat Universe Theory

Whenever we talk about the expanding universe, everyone wants to know how this is going to end. Sure, they say, the fact that most of the galaxies we can see are speeding away from us in all direction [ReadMore..]

chiara marletto wikipedia

Chiara Marletto Wikipedia

Happy birthday to me! Recently, lots of people have been asking me what I think about IIT—no, not the Indian Institutes of Technology, but Integrated Information Theory, a widely-discussed &# [ReadMore..]

expanding universe theory

Expanding Universe Theory

We present a conformal field theory - obtained from a gauged WZW model - that describes a closed, inhomogeneous expanding and recollapsing universe in… Oct 29, 1992 ... We present a conformal field [ReadMore..]

map of solar system planets

Map Of Solar System Planets

Online 3D simulation of the Solar System and night sky in real time - the Sun, planets, dwarf planets, comets, stars and constellations These textures represent real planetary maps in equirectangular [ReadMore..]

what are newton's three laws of motion

What Are Newton's Three Laws Of Motion

How does Newton's "3 Laws of Motion" relate to driving force? Find out here at the best online driving school in the nation, Improv Traffic School. Newton's Second Law Of Motion. The second of Newtons [ReadMore..]