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Cheatography

sciences Cheat Sheet (DRAFT) by

notation of science related material.

This is a draft cheat sheet. It is a work in progress and is not finished yet.

quantum

- particles can be in multiple states at the same time
- other dimensions
- particles can influence each other over great distances
- entities can be summoned from other realms that exist in the quantum space

energy

hydros - utilising fluid in transm­itting power
energy stored in fields = the total energy required to assemble the fields

dissip­ative

something that causes energy or resources to be gradually lost or dispersed. It's like when a material or system absorbs energy and releases it as heat, gradually losing its initial energy or organi­sation over time.

fussion v. fission

fusion is the process of combining atomic nuclei to release energy, while fission is the splitting of atomic nuclei to release energy.
fission:
the division of a heavy atom into 2 light atoms.
fusion:
two light atoms combine to form a larger atom.
the phenomena of nuclear fusion and nuclear fission have one unique point in common: the atom.*

building blocks

the up quark, the down quark and the electron. This set of particles is all that's needed to make protons and neutrons and to form atoms and molecules.

self-o­rga­nised critic­ality

when things in nature, like sand or other systems, arrange themselves in a way that they are always on the edge of something intere­sting happening, like an avalanche, without anyone making it happen on purpose.
It's a concept in science that says in some systems, like the sandpile, things can organize themselves to a point where they are about to change or have an "­ava­lan­che­" without anyone planning or contro­lling it. It's like nature's way of creating order and chaos all on its own.

fluctu­ati­on-­dis­sip­ation theorem

fluctu­ations: random variations or noise in a system’s properties (tempe­rature, pressure or particle position)
dissip­ation: process where a system loses energy to its surrou­ndings, often covering kinetic or potential energy into heat. When a system is subjected to an external force, it tends to return to equili­brium, and this return involves dissip­ative proces­ses.*
 
the theorem suggests that the natural jostling of molecules in the coffee (fluct­uat­ions) influences how the coffee responds when you disturb it by stirring (dissi­pat­ion).*

hypersonic

one that exceeds five times the speed of sound, often stated as starting at speeds of Mach 5 and above.

supersonic

faster than the speed of sound, or able to fly faster than sound travels.

metals

metal
density (g/cm³
melting point (°C)
young's modulus (GPa)
thermal conduc­tivity (W/m·K)
electrical conduc­tivity (MS/m)
aluminum
2.70
660
69
237
37.7
copper
8.96
1085
117
401
58.0
iron
7.87
1538
211
80.4
10.0
gold
19.32
1064
79
317
44.0
silver
10.49
961
83
429
63.0
titanium
4.51
1668
116
21.9
6.7
zinc
7.14
419
108
116
16.5

hydroc­arbon

if all fossil fuels are complex hydroc­arbons and say all hydroc­arbons originate from life; then where did this complex life come from? as complex as life is, my theory is it started from some existing pools of complex hydroc­arbons. so, fossil fuels were not formed, they have always been there in one form or another.
oil is abiotic, a product of the earth's magma, and far more abundant than many are aware.

force fields

fields are not some "­fai­ry-­tal­e" fictions just used to compute forces. they are real; they have momentum, stress, energy; they interact with matter, charges; exchange energy and momentum with them.
energy conser­vation is a local process which evidently implies electr­oma­gnetic field between two intera­cting charges must mediate the energy and momentum exchange between the charges and hence must have energy density and momentum.

gravity is an effect

it is a fundam­ental force, the way we experience it, especially under the framework of general relati­vity, can be described as an effect of the curvature of spacetime.

energy stored in a field

concept of fields:
grasping the idea of fields and assigning energy to them can be challe­nging. sometimes, it is simpler to visualize energy stored in objects (like masses) rather than in fields.
gravit­ational potential energy:
when separating two masses, gravit­ational potential energy increases. the energy is considered stored in the system of the two masses, not the field.
electr­onm­agnetic waves:
an electr­oma­gnetic wave has both electric and magnetic fields, oscill­ating at right angles, carrying energy.
maxwell's equations:
these demons­trate that energy in electr­oma­gnetic waves is stored in the electric and magnetic fields, reinfo­rcing the idea that fields can store energy.
work and energy transfer:
creating electr­oma­gnetic waves requires work, transf­erring energy to the electric and magnetic fields of the wave.

thrust

the force that propels an object forward, typically used in the context of engines or rockets.

standard deviation

a standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean.

luminance

photom­etric measure of the luminous intensity per unit area of light travelling in a given ­dir­ection.

quantum financial system (qfs)

the name for a theory that stipulates the global financial infras­tru­cture will be migrated to a new system based on cuttin­g-edge techno­logies such as quantum computing, artificial intell­igence, and blockc­hain.

aes and block ciphers

AES-256 - the block cipher - as far as we know hasn't been broken. It has not even been close to broken.
we cannot prove that it is secure. (an algorithm that is able to crack AES may be found.)
most ciphers cannot be proven to be secure. Only a handful algorithms such as the one-ti­me-pad are secure in the inform­ati­on-­the­ore­tical sense.
tldr: when building a secure system you may use AES-256, it's considered secure even if this cannot be proven. Other aspects of the system are much more likely to fail than AES-256 - the block cipher by itself.*

one-time pad

 

simulation theory

a theore­tical hypothesis that says what people perceive as reality is actually an advanced, hyper-­rea­listic computer simula­tion, possibly overseen by a higher being.
 

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quantum mechanics

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symmetries

 

atomic nuclei

most of the rest mass of matter is in nuclei. What gives nuclei their mass are protons and neutrons and they get most of theirs from the kinetic energy of their consti­tuents.

h-index

measures a resear­cher's impact by quanti­fying both the number of public­ations and the number of citations per public­ation. (30-60+ (h-index score good)

compute chip limitation

as we continue to miniat­urise chips, we'll no doubt bump into Heisen­berg's uncert­ainty principle, which limits precision at the quantum level, thus limiting our comput­ational capabi­lities. James R. Powell calculated that, due to the uncert­ainty principle alone, Moore's Law will be obsolete by 2036.
 
in other words, as we make computer chips smaller and smaller, we'll eventually reach a point where we can't make them any smaller without running into a fundam­ental limit called Heisen­berg's uncert­ainty principle.
 
this principle says there's a limit to how precisely we can measure certain things at the tiny scale of atoms and particles. This limit will restrict how much we can improve computer perfor­mance through miniat­uri­sation. James R. Powell did some calcul­ations and predicts that because of this limit, a famous trend called Moore's Law, which says that the number of transi­stors on a chip doubles approx­imately every two years, won't hold true anymore by the year 2036.

brainwaves

beats:
the difference between two hertz freque­ncies
4hz:
enhanced memory
10hz:
healing, reduced pain
cerebral perfor­mance enhanc­ement
alpha brainw­aves:
between 8-14hz
theta waves:
between 4-8hz
stimulates catech­ola­mines, essential to learning and memory synchr­onise both the left and right brain.

theta brainwaves

hemi-sync / psycho­-ac­oustics / binaural

hardware accele­ration

process where applic­ations offload certain tasks to hardware in your system, especially to accelerate a task more effici­ently than is possible in software running on a genera­l-p­urpose CPU.

hilbert's 8th problem

hilbert's 8th problem encomp­asses the Riemann Hypoth­esis, which posits that all non-tr­ivial zeros of the Riemann zeta function have a real part of 1/2, and Goldbach's Conjec­ture, which asserts that every even integer greater than 2 can be expressed as the sum of two primes.

chaos theory

explores the effects of small occurr­ences that can dramat­ically affect the results of seemingly unrelated events.

3 sigma

data within three standard deviations from a mean:
1 sigma:
about 68% of data points fall within 1 sigma (1 standard deviation) from the mean.
2 sigma:
about 95% of data points fall within 2 sigma (2 standard deviat­ions) from the mean.
3 sigma:
about 99.7% of data points fall within 3 sigma (3 standard deviat­ions) from the mean.
 
3 sigma = a range that covers almost all the data (99.7%) around the average value. This concept is often used in quality control and other fields to indicate that something is very unlikely to be an anomaly or error if it falls within this range.

p-value

helps decide whether results are signif­icant in scientific experiment study. (whether the hypothesis has legs or is likely a fluke)
low p-value (typically less than 0.05, likely effect­ive):
your results are probably not due to random chance, and there is likely a real effect or differ­ence.
high p-value (typically more than 0.05, fluke):
your results might be due to random chance, and there may not be a real effect or differ­ence.

heisenberg uncert­ainty principle

states that it's impossible to simult­ane­ously know both the exact position and exact momentum of a particle, as the more precisely one is measured, the less precisely the other can be known.

centri­petal force

force that keeps an object moving in a circular path, directed toward the center of the circle around which the object is rotating.

intell­ectual phase locking

refers to the scientific commun­ity's consensus to fix the speed of light at a constant value, potent­ially limiting open discussion on altern­ative measur­ements or variations .

morphic resonance

rupert sheldr­ake's hypothesis that similar forms and behaviours influence each other across time and space through a collective memory field.

coronal mass ejection

a signif­icant release of plasma and magnetic field from the Sun's corona that can impact Earth's magnet­osp­here, potent­ially causing geomag­netic storms.

default mode network

network of brain regions that becomes active when the mind is at rest and not focused on the external enviro­nment, often associated with daydre­aming and self-r­efe­rential thoughts.

henrietta lacks

cells, taken without her consent in 1951, became the first immortal human cell line (HeLa cells), revolu­tio­nising medical research and leading to numerous scientific breakt­hro­ughs.

clincal trials (phases)

pre- clincal:
cell studies (in vitro) and animal studies conducted in a laboratory to evaluate the safety, efficacy, and biological activity of a drug or treatment before it is tested in humans.
phase 1:
(proof of concept) explor­atory trials with very small doses to understand drug intera­ction in humans.
several months
phase 2:
(safe dosing) 20-80 people. try to find safe doses, observe how the drug interacts with the body, and look for side-e­ffects
months - 2 years
phase 3:
(confi­rma­tion) dozens­-100s people. expands the study to a larger group to assess the drug's efficacy and further evaluate its safety.
1 - 4 years
fda:
regulators review data from trials, consider patient perspe­ctives on benefit vs risk, etc., to determine if drug should be approved
phase 4:
(post-­market) 100s-t­hou­sands people. studies to gather additional inform­ation on the drug's risks, benefits, and optimal use in the general popula­tion.
up to 5 years
discovery and develo­pment, precli­nical research, clinical research, fda drug review, fda post-m­arket drug safety monitoring

77% or more move forward from phase 1, 33% move forward from phase 2, accele­rated approval drugs often go to market after phase 2, 15-33% go to market