My new desk organisation! Got discharged from the hospital last Thursday. In light of a new beginning and a new semester, my blog shall now be in colour to celebrate the beginning of my recovery and the new semester starting next week! 😃
35/100 Days of Productivity
Today started off rough because I overslept and missed my first class, but I made up for it by destroying my to do list!
36/100 Days of Productivity
3/5 of the way done with recruitment and I’m still in it! By Monday evening I will know which (if any) sorority I am in! Been wearing my atom necklace as good luck :)
One of the questions I got asked today was what my favorite aisle in target was and I immediately said the stationary aisle 😂
Luckily I had time when it was over to study for my orgo exam on Monday! If only I could figure out my quantum prelab we’d be set !
concept: reading cad comics whilst chugging a container of flintstones and skittles then inhaling cheese infused chocolate and astral prodisassociating into quantum foam where you will meet the entire cast of CAD as well as Tickley himself, who will award you with a waternelon
1. Gravity as Thermodynamics Entropic gravity is a theory in modern physics that describes gravity as an entropic force - not a fundamental interaction mediated by a quantum field theory and a gauge particle, but a consequence of physical systems’ tendency to increase their entropy.
2. Loop Quantum Gravity According to Einstein, gravity is not a force – it is a property of space-time itself. Loop quantum gravity is an attempt to develop a quantum theory of gravity based directly on Einstein’s geometrical formulation. The main output of the theory is a physical picture of space where space is granular. More precisely, space can be viewed as an extremely fine fabric or network “woven” of finite loops. These networks of loops are called spin networks. The evolution of a spin network over time is called a spin foam. The predicted size of this structure is the Planck length, which is approximately 10−35 meters. According to the theory, there is no meaning to distance at scales smaller than the Planck scale. Therefore, LQG predicts that not just matter, but space itself, has an atomic structure.
3. Causal Sets Its founding principles are that spacetime is fundamentally discrete and that spacetime events are related by a partial order. The theory postulates that the building blocks of space-time are simple mathematical points that are connected by links, with each link pointing from past to future. Such a link is a bare-bones representation of causality, meaning that an earlier point can affect a later one, but not vice versa. The resulting network is like a growing tree that gradually builds up into space-time.
4. Causal Dynamical Triangulations The idea is to approximate the unknown fundamental constituents with tiny chunks of ordinary space-time caught up in a roiling sea of quantum fluctuations, and to follow how these chunks spontaneously glue themselves together into larger structures. The space-time building blocks were simple hyper-pyramids (four-dimensional counterparts to three-dimensional tetrahedrons) and the simulation’s gluing rules allowed them to combine freely. The result was a series of bizarre ‘universes’ that had far too many dimensions (or too few), and that folded back on themselves or broke into pieces.
5. Holography In this model, the three-dimensional interior of the universe contains strings and black holes governed only by gravity, whereas its two-dimensional boundary contains elementary particles and fields that obey ordinary quantum laws without gravity. Hypothetical residents of the three-dimensional space would never see this boundary, because it would be infinitely far away. But that does not affect the mathematics: anything happening in the three-dimensional universe can be described equally well by equations in the two-dimensional boundary, and vice versa.
Unfortunate space travellers won’t be able to return to their own
universe, according to Hawking. But they will be able to escape
somewhere else, he has proposed at a conference in Stockholm.
Black holes in fact aren’t as “black” as people thought and could be a way of getting through to an alternative universe.
existence of alternative histories with black holes suggests this might
be possible,” Hawking said, according to a report from Stockholm
University. “The hole would need to be large and if it was rotating it
might have a passage to another universe. But you couldn’t come back to
our universe. So although I’m keen on space flight, I’m not going to try
Hawking’s proposal is an attempt to answer a problem that has
tormented physicists about what happens to things when they go beyond
the event horizon, where even light can’t get back. The information
about the object has to be preserved, scientists believe, even if the
thing itself is swallowed up — and that paradox has puzzled scientists
Now Hawking has proposed that the information is
stored on the boundary, at the event horizon. That means that it never
makes its way into the black hole, and so never needs to make its way
out again either.
That would also mean that humans might not disappear if they fall
into one. They’d either stay as a “hologram” on the edge, or fall out
“If you feel you are in a black hole, don’t give up,” he told the audience at the end of his speech. “There’s a way out.”
“Several times during the last three years I have taken up my pen to write to you, but always I feared lest your affectionate regard for me should tempt you to some indiscretion which would betray my secret.”