the wheel in the sky keeps on turning
Last night, I had a dream that I got sent to prison. While in prison, I stabbed a guy in there with a sharpie, and the guards took my sharpies away from me, and I went crazy, cus i didnt have my sharpies. They put me in a solitary confinement where I was attacked by the same guy who stabbed me.
...weird dream.
ANYWAYZ! I helped my friend andrew get his piece for the creative writing contest in on time so it could be in "Gilded." I'm glad he got it in on time and was still accepted. He's a good writer, just needs to work on staying on task. I actually put a lot of effort into helping him with that. I felt proud, and he was thankful:) I was glad to help tho. I just finished reading chapter 3 of "the elegant universe." I just finished reading about Einstein's theory of general relativity, which, in a nutshell, is his formulation of gravity, which shows that space and time communicate the gravitational force through their curvature. Chapter 3 also introduced Black Holes, the Big Bang, and the Expansion of Space, the warping of space and time by mass, the correspondence of accelteration and gravity.
"THE ELEGANT UNIVERSE" by Brian Greene
Facts in Chapter 3
- Einstein's theory of general relativity revolutionized our understanding of space and time by showing that they warp and distort to communicate the force of gravity.
- acceleration and gravity cancel each other out. This indistinguishability between accelerated motion and gravity is the equivalence principle. this fact plays the central role in general relativity.
- accelerated motion results in a warping of space and an analogous warping in time. greater acceleration results in a more significant warping of time.
- special relativity articulates a union between space and time.
- objects with mass cause the fabric of space to warp. the shape of space responds to objects in the environment.
- Einstein specified the mechanism by which gravity is transmitted: the warping of space.
- the more massive an object is, the greater the distortion it causes in the surrounding space, and the greater the gravitational influence it can exert on other bodies
- "mass grips space by telling it how to curve, space grips mass by telling it how to move." - physicist John Wheeler
- as an object changes its position or even blows apart, it causes a change in the distortion of the spacetime fabric that spread outward at precisely the speed of light.
- space and time warp in the civinity of a perfectly spherical star (black hole)
- Shwarzchild solution - if the mass of a star is concentrated in a small enough spherical region, so that its mass divided by its radius exceeds a particular critical value, the resulting spacetime warp is so radical that anything, including light, that gets too close to the star will be unable to escape its gravitational grip.
- the event horizon is the unescapable gravitational pull of the black hole, the warped space around it.
- there is a very massive black hole, some two and a half million times as massive as the sun, sitting in the center of our own milky way galaxy.
- general relativity concerns the origin and evolution of the whole universe.
- Einstein's theory was able to describe the mutual evolution of space, time, and matter quanitatively, which brought him to the remarkable conclusion: the overall size of the spatial universe must be changing in time. the fabric of universe is expanding.
- if the fabric of space is stretching, thereby increasing the distance between galaxies that are carried along on the cosmic flow. we can imagine running the evolution backward in time to learn about the origin of the universe. In reverse, the universe is shrinking, which brings us to massive amounts of energy and matter held together to unimaginable density and temperature - the big bang.
on to chapter 4!! about quantum theory!!!
...weird dream.
ANYWAYZ! I helped my friend andrew get his piece for the creative writing contest in on time so it could be in "Gilded." I'm glad he got it in on time and was still accepted. He's a good writer, just needs to work on staying on task. I actually put a lot of effort into helping him with that. I felt proud, and he was thankful:) I was glad to help tho. I just finished reading chapter 3 of "the elegant universe." I just finished reading about Einstein's theory of general relativity, which, in a nutshell, is his formulation of gravity, which shows that space and time communicate the gravitational force through their curvature. Chapter 3 also introduced Black Holes, the Big Bang, and the Expansion of Space, the warping of space and time by mass, the correspondence of accelteration and gravity.
"THE ELEGANT UNIVERSE" by Brian Greene
Facts in Chapter 3
- Einstein's theory of general relativity revolutionized our understanding of space and time by showing that they warp and distort to communicate the force of gravity.
- acceleration and gravity cancel each other out. This indistinguishability between accelerated motion and gravity is the equivalence principle. this fact plays the central role in general relativity.
- accelerated motion results in a warping of space and an analogous warping in time. greater acceleration results in a more significant warping of time.
- special relativity articulates a union between space and time.
- objects with mass cause the fabric of space to warp. the shape of space responds to objects in the environment.
- Einstein specified the mechanism by which gravity is transmitted: the warping of space.
- the more massive an object is, the greater the distortion it causes in the surrounding space, and the greater the gravitational influence it can exert on other bodies
- "mass grips space by telling it how to curve, space grips mass by telling it how to move." - physicist John Wheeler
- as an object changes its position or even blows apart, it causes a change in the distortion of the spacetime fabric that spread outward at precisely the speed of light.
- space and time warp in the civinity of a perfectly spherical star (black hole)
- Shwarzchild solution - if the mass of a star is concentrated in a small enough spherical region, so that its mass divided by its radius exceeds a particular critical value, the resulting spacetime warp is so radical that anything, including light, that gets too close to the star will be unable to escape its gravitational grip.
- the event horizon is the unescapable gravitational pull of the black hole, the warped space around it.
- there is a very massive black hole, some two and a half million times as massive as the sun, sitting in the center of our own milky way galaxy.
- general relativity concerns the origin and evolution of the whole universe.
- Einstein's theory was able to describe the mutual evolution of space, time, and matter quanitatively, which brought him to the remarkable conclusion: the overall size of the spatial universe must be changing in time. the fabric of universe is expanding.
- if the fabric of space is stretching, thereby increasing the distance between galaxies that are carried along on the cosmic flow. we can imagine running the evolution backward in time to learn about the origin of the universe. In reverse, the universe is shrinking, which brings us to massive amounts of energy and matter held together to unimaginable density and temperature - the big bang.
on to chapter 4!! about quantum theory!!!