We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byJaquan Hurley
Modified about 1 year ago
© Copyright 2011, R.F.J. van Linden A rock begins to fall towards a black hole. Nearing the Schwarzschild horizon of the black hole, its clock begins to run slow and its speed slows down again. This is the “Schwarzschild” horizon Once it arrives at the Schwarzschild horizon, it freezes in both space and time.
© Copyright 2011, R.F.J. van Linden These effects seem weird to us but that is because in 3D your eyes only see half the picture. The full picture is 5D. And in that 5D world, the rock initially has lightspeed velocity in the 4 th dimension (time).
So let’s exchange one spatial dimension that we don’t use anyway by time and another by the fifth dimension. © Copyright 2011, R.F.J. van Linden Y (space) Z (space) 5 th TIME The rock initially has lightspeed velocity in time. X (space)
© Copyright 2011, R.F.J. van Linden X (space) 5 th TIME And drop the rock again The speed of the rock remains at lightspeed, but its direction first rotates from time towards space and finally towards the 5th dimension. In the end its speed in space and time is zero. It follows the curvature of the dimensions in the gravity field (a so called ‘geodesic’ path).
Amazingly simple Isn’t it ? Everything should be made as simple as possible, but not simpler. More like this? (slightly more serious) or straight to (even more serious) © Copyright 2011, R.F.J. van Linden
Stationary Elevator with gravity: Ball is accelerated down.
Goal: To understand gravity Objectives: 1)To understand who discovered what about gravity. 2)To learn about the Universal nature of gravity 3)To explore.
Announcements Grades for third exam are now available on WebCT Observing this week and next week counts on the third exam. Please print out the observing.
The odd thing about gravity... The force of gravity is proportional to the mass of the object it acts on M m r F The acceleration is the same, no matter.
A black hole is a region of space with such a strong gravitational field that not even light can escape.
Bending Time Physics 201 Lecture 11. In relativity, perception is not reality Gravity affects the way we perceive distant events For example, although.
Quiz #9 Suppose the Sun were to suddenly become a black hole with all of its mass falling into the black hole. Tell what would happen to the Earth (in.
Chapter 18: Relativity and Black Holes. Since neutron stars are degenerate, what is their maximum mass? If a white dwarf star in a binary system exceeds.
Black Holes Formation Spacetime Curved spacetime Event horizon Seeing black holes Demo: 1L Gravity Well - Black Hole.
General Relativity Physics Honours 2007 A/Prof. Geraint F. Lewis Rm 557, A29 Lecture Notes 8.
General Relativity and Cosmology The End of Absolute Space Cosmological Principle Black Holes CBMR and Big Bang.
1.Newton hypothesized that the moon: a)is a projectile b)is actually attracted to Earth c)is falling around Earth d)has tangential velocity that prevents.
Black Holes Devouring Monsters of the Universe. How are they made? Only the very largest stars, beginning with at least 50 solar masses, are able to form.
Pulsars, Neutron Stars and Black Holes Model of a Neutron Star.
General Relativity Principle of equivalence: There is no experiment that will discern the difference between the effect of gravity and the effect of.
GRAVITY. A Brief Timeline of the Discovery of Gravity.
Physics Mrs. Coyle -Gravitational Field -Satellites -Einstein’s View of Gravity.
Free Fall Acceleration due to Gravity. Free Fall l What causes things to fall? l How fast do things fall? l How far do things fall in a given time?
Principle of Equivalence: Einstein 1907 Box stationary in gravity field Box falling freely Box accelerates in empty space Box moves through space at constant.
Black Holes. Underlying principles of General Relativity The Equivalence Principle No difference between a steady acceleration and a gravitational field.
Acceleration The rate at which velocity changes. Acceleration Acceleration can be described as changes in speed, changes in direction, or changes in both.
General Relativity Physics Honours 2008 A/Prof. Geraint F. Lewis Rm 560, A29 Lecture Notes 9.
Goal: To get to know the ins and outs of relativity (relatively speaking) Objectives: 1)To learn about how Black holes depend on space-time 2)To learn.
Black Holes A stellar mass black hole accreting material from a companion star 1.
Black Holes Written for Summer Honors Black Holes Massive stars greater than 10 M upon collapse compress their cores so much that no pressure.
Isaac Newton. Newton’s First Law Every object will remain at rest or travel at constant speed along a straight path unless acted upon by an external.
Chapter 22: Black Holes Einstein’s relativity: –Special –General –Relativity and black holes Evidence of black holes Properties of black holes Long-time.
You will be able to calculate Instantaneous speed Average speed Of falling or rising objects.
General Relativity Physics Honours 2006 A/Prof. Geraint F. Lewis Rm 557, A29 Lecture Notes 9.
Question The pressure that prevents the gravitational collapse of white dwarfs is a result of ______. A) Conservation of energy B) Conservation of.
Einstein’s postulates 1.The laws of nature are the same for everyone. 2. The speed of light in a vacuum is constant for all observers.
General Relativity Physics Honours 2007 A/Prof. Geraint F. Lewis Rm 557, A29 Lecture Notes 7.
1. White Dwarf If initial star mass < 8 M Sun or so. (and remember: Maximum WD mass is 1.4 M Sun, radius is about that of the Earth) 2. Neutron Star If.
Free Fall. Reading Quiz: Throw ball up and let it return. Initial speed = v 0. Round trip time is 2v 0 /g. What is the ball’s minimum speed during trip?
Black Holes. Dark stars a star that has an escape velocity greater than the speed of light.
PROJECTILE MOTION. Relevant Physics: The Independence of the Vertical and Horizontal directions means that a projectile motion problem consists of two.
Black Holes. Outline: Black Holes Escape velocity Definition of a black hole Event horizon Gravitational redshift & time dilation Tidal forces of black.
Announcements Homework: Chapter 2 handout # 1, 2, 3, 4 & 7 Will not be collected but expect to see problems from it on the exam. Solutions are posted.
Black Holes and Gravity 1)Type II Supernova 2)Neutron Stars 3)Black Holes 4)More Gravity April 7, 2003
Mr Green sees the shorter, straight, green path and Mr. Red sees the longer, curved, red path.
AccelerationHonors Physics. The RATE of CHANGE of VELOCITY Change = FINAL - INITIAL v = Final velocity – Initial velocity Acceleration – The Definition.
Copyright © 2010 Pearson Education, Inc. Accelerated Motion Chapter 3 Review.
Special and General Relativity. Examples of Inertial Reference Frames 1.This room. Experiment: Drop a ball. It accelerates downward at 9.8 m/s 2 due to.
Goal: To get to know the ins and outs of relativity (relatively speaking) Objectives: 1)To understand how Black holes compare to space-time 2)To learn.
Neutron Stars and Black Holes PHYS390: Astrophysics Professor Lee Carkner Lecture 18.
Inertia!. History ~300 B.C.E. Aristotle (Greek) ~300 B.C.E. Aristotle (Greek) Divided motion into two categories: Divided motion into two categories:
Black Holes Escape velocity Event horizon Black hole parameters Falling into a black hole.
Chapter 3-Lesson 1 Forces and Motion What is Motion?
© 2017 SlidePlayer.com Inc. All rights reserved.