Jump to content

SUBIECTE NOI
« 1 / 5 »
RSS
Incalzire casa fara gaz/lemne

Incalzire in pardoseala etapizata

Suprataxa card energie?!

Cum era nivelul de trai cam din a...
 probleme cu ochelarii

Impozite pe proprietati de anul v...

teava rezistenta panou apa calda

Acces in Curte din Drum National
 Sub mobila de bucatarie si sub fr...

Rezultat RMN

Numar circuite IPAT si prindere t...

Pareri brgimportchina.ro - teapa ...
 Lucruri inaintea vremurilor lor

Discuții despre TVR Sport HD.

Cost abonament clinica privata

Tremura toata, dar nu de la ro...
 

Va aparea o noua tehnologie revolutionara?

- - - - -
  • Please log in to reply
94 replies to this topic

#73
lupini

lupini

    Guru Member

  • Grup: Senior Members
  • Posts: 23,150
  • Înscris: 29.12.2006

View Postkarax, on 23 decembrie 2018 - 11:04, said:

nemuritor poti sa fii si daca iti clonezi corpul si iti bagi memoria si tot in noul corp care nu sufera de nici o boala.... sau ceva  ce se poate face si acum , bagi niste celule stem in tot corpul si stimulezi regenerarea organismului. La intervale regulate de timp iti regenerezi organismul si gata ...esti nemuritor fara sa te tranformi in robot....  iti descarci constiinta intr-un back-up ca sa ai un duplicat in caz de accident ,  iti creezi  un trup  nou  pe  care il  pui la pastrare, inserezi toate emotiile pe care le-ai avut la momentul de dinaintea accidentului (asta e cel mai important in materie de duplicare a corpului) , si gata , daca patesti ceva esti ca nou langa  familia ta again fara sa mori...


Există pe Pământ un animal "nemuritor", adică unul care, teoretic, poate trăi atâta vreme cât va exista Terra. Vietatea e o meduză microscopică, şi poartă numele ştiinţific, Turritopsis doohmii. Acest animal îşi perpetuează viaţa prin regenerarea organelor, cu o condiţie: să nu apară viruşii, sau mâncătorii de plancton.

Sigur, meduza asta e o vietatea simplă, şi regenerarea se poate face, însă, cu cât urcăm spre viaţa organismele tot mai complexe, regenerarea devine tot mai grea.


Până în prezent, au fost pe Pământ 5 extincţii majore, şi cam 20 mai mici, în care viaţa de pe Terra a dispărut în unele cazuri până la 95 %. Viaţa biologică !

Homo sapiens vine în urma multor dispariţii ale altor specii umane: Ultima specie umană dispărută e Homo neanderthalensis, care s-a întâmplat în urmă cu circa 45 000 - 50 000 de ani.

Conform teoriei evoluţiei, cei care se adaptează cel mai bine unui mediu, sunt cei care supravieţuiesc unor schimbări ale acestuia, după ce au suferit unele modificări în informaţia biologică. Vedem că în epoca actuală, Homo sapiens acuză tot mai mult schimbările climatice, lipsa alimentaţiei naturale, stressul sau bolile. Deci, Homo sapiens se adaptează tot mai greu mediului. Asta ne arată că probabil până la finalul acestui secol 21, Homo sapiens biologic va dispărea treptat, fiind înlocuit de Inteligenţa Artificială nebiologică, ce nu va avea nicio problemă cu mediul poluat sau cu stressul.

Inteligenţa Artificială nu are faţă de robot, acesta fiind un concept al anilor 1920, ci...faţă de...reţea a tuturor maşinilor, aşa cum înţelegem noi oamenii prezentului, conceptul de maşină. Astfel de maşini vor găzdui acele unităţi de informaţie transmise de-a lungul vieţii unui om în Internet. Aceste unităţi au fost numite în anul 2006 de către Martine Rothblatt cu numele beme, care sunt unităţi de informaţie asemenea genelor ce transmit informaţia biologică, şi a memelor care transmit informaţia culturală.

Bemele sunt unităţile de informaţie care rămân în lumea virtualului după ce omul a activat acolo prin mesaje şi imagini, şi care vor sta la fundamentul reconstruirii identităţii cuiva după ce individul nu va mai exista biologic.

Edited by lupini, 23 December 2018 - 14:05.


#74
karax

karax

    Guru Member

  • Grup: Senior Members
  • Posts: 21,839
  • Înscris: 14.10.2017
asta tine de cat de  multa grija vom avea de planeta

#75
Mr_Woppit

Mr_Woppit

    the last of them..

  • Grup: Super Moderators
  • Posts: 17,834
  • Înscris: 26.11.2001

View Postkarax, on 23 decembrie 2018 - 16:12, said:

asta tine de cat de  multa grija vom avea de planeta

irelevanta de fapt grija fata de planeta

grija este fata de mediul actual care sustine viata asa cum ne trebuie noua

daca busim asta pana la cap, ne vom elimina din ecuatie si impreuna cu noi, multe alte specii, dupa care planeta va fi cum va fi ... a fost multe miliarde de ani total nepotrivita vietii organice, poate fi din nou pana cand se va dezvolta altceva

#76
karax

karax

    Guru Member

  • Grup: Senior Members
  • Posts: 21,839
  • Înscris: 14.10.2017
acum daca am  reusi sa ne caram  cu totii de pe planeta asta , 7 miliarde cat suntem , si sa traim numai in colonii stelare , putem sa  o si dam naiba de  planeta...ce ne intereseaza e ca sustine viata in primul rand deci ne trebuie. Plus ca si daca am avea colonii spatiale,  poate nu toata lumea ar  prefera sa plece de pe ppamant , avand poate rau de miscare , rau de inaltime si de zbor, rau de "univers". In rest primele colonii spatiale vor fi probabil platite cu bani grei si exclusiviste urmand abia peste vreo 150 de ani sa fie accesibile si pulimii...  
Oricum vor fi cativa care vor considera ca zborul spatial e  ochiul dracului sau ceva si se vor incapatana sa ramana pe planeta , urmand ca ei sa aiba grija de ea...in felul asta si bogatul isi va asigura traiul si prostimea va trai cum crede ea  pe planeta

#77
Infinitty

Infinitty

    Senior Member

  • Grup: Senior Members
  • Posts: 7,401
  • Înscris: 14.12.2008

View Postkarax, on 24 decembrie 2018 - 14:11, said:

acum daca am  reusi sa ne caram  cu totii de pe planeta asta , 7 miliarde cat suntem , si sa traim numai in colonii stelare , putem sa  o si dam naiba de  planeta...ce ne intereseaza e ca sustine viata in primul rand deci ne trebuie. Plus ca si daca am avea colonii spatiale,  poate nu toata lumea ar  prefera sa plece de pe ppamant , avand poate rau de miscare , rau de inaltime si de zbor, rau de "univers". In rest primele colonii spatiale vor fi probabil platite cu bani grei si exclusiviste urmand abia peste vreo 150 de ani sa fie accesibile si pulimii...  
Oricum vor fi cativa care vor considera ca zborul spatial e  ochiul dracului sau ceva si se vor incapatana sa ramana pe planeta , urmand ca ei sa aiba grija de ea...in felul asta si bogatul isi va asigura traiul si prostimea va trai cum crede ea  pe planeta

In curand nu vor mai exista bogati ci doar o casta incomensurabil de bogata pe vecie, dar odata cu motorul warp fiecare om va dispune de stapanirea unor galaxii intregi, asa ca bogatia va deveni un chilipir curat.

Ma indoiesc ca in viitorul motorului warp si al IA vor mai exista papuasi.

View PostMr_Woppit, on 23 decembrie 2018 - 22:57, said:

irelevanta de fapt grija fata de planeta

grija este fata de mediul actual care sustine viata asa cum ne trebuie noua

daca busim asta pana la cap, ne vom elimina din ecuatie si impreuna cu noi, multe alte specii, dupa care planeta va fi cum va fi ... a fost multe miliarde de ani total nepotrivita vietii organice, poate fi din nou pana cand se va dezvolta altceva

Si bacteriile sunt organice si toate vietatile marine.

#78
karax

karax

    Guru Member

  • Grup: Senior Members
  • Posts: 21,839
  • Înscris: 14.10.2017
sa fie

#79
rixthina

rixthina

    superb membru

  • Grup: Senior Members
  • Posts: 3,497
  • Înscris: 29.10.2017

View Postkarax, on 24 decembrie 2018 - 14:11, said:

acum daca am  reusi sa ne caram  cu totii de pe planeta asta , 7 miliarde cat suntem , si sa traim numai in colonii stelare , putem sa  o si dam naiba de  planeta...ce ne intereseaza e ca sustine viata in primul rand deci ne trebuie. Plus ca si daca am avea colonii spatiale,  poate nu toata lumea ar  prefera sa plece de pe ppamant , avand poate rau de miscare , rau de inaltime si de zbor, rau de "univers". In rest primele colonii spatiale vor fi probabil platite cu bani grei si exclusiviste urmand abia peste vreo 150 de ani sa fie accesibile si pulimii...  
Oricum vor fi cativa care vor considera ca zborul spatial e  ochiul dracului sau ceva si se vor incapatana sa ramana pe planeta , urmand ca ei sa aiba grija de ea...in felul asta si bogatul isi va asigura traiul si prostimea va trai cum crede ea  pe planeta
Lasa ca e suficient sa se care un Adam plus o Eva, le trebuie doar un manual despre sex si vor ajunge rapid la alte 7 miliarde.
Tot pulime vor fi si aia, si vor fi mereu cu ochii sa se care de pe oriunde vor ajunge. Si tot asa, dupa noi potopul.

#80
karax

karax

    Guru Member

  • Grup: Senior Members
  • Posts: 21,839
  • Înscris: 14.10.2017
dar exista  probabilitatea sa seintample ceva  neprevazut, care sa incheie linia genetica si sa nu mai existe nici un om...astfel legea probabilitatii zice ca cu cat mai multi care se cara in spatiu cu atat mai siguri o sa fim ca  omenirea supravietuieste...
in  plus nu e vorba numai de supravietuirea omenirii , ca instinctul de grup il avem numai in anumite momente....este si chestia ca fiecare contam pentru noi insine si vrem sa fim cei salvati....de aia exista o bataie si o lupta pe tehnologie pentru ca vor cat mai multi sa fie cei salvati.... de asta cei prosti de obicei au tendinta sa fure

cu ce ma incalzeste daca cutare sau cutare scapa daca nu sunt eu cel care scapa ?

#81
rixthina

rixthina

    superb membru

  • Grup: Senior Members
  • Posts: 3,497
  • Înscris: 29.10.2017
Totul se transforma. Cei ce pleaca se adapteaza (daca se adapteaza) la noile conditii.
Si vor fi diferiti.
Oricum, te agiti degeaba. Cauta o gagica misto si traieste-ti viata.
Dupa aceea, revino in topic(daca mai revii) si te vei amuza.
Cine pleaca, sa-i fie de bine!

Apoi, femeile au prioritate, si nu din politete.
Vor face bebelushi.  Exista inseminare artificiala, nici pentru sex nu vor lua un mascul.
Deci, ia-ti gandul, vere!

#82
andreic

andreic

    Very OLD Member

  • Grup: Moderators
  • Posts: 122,292
  • Înscris: 07.02.2003

View Postkarax, on 23 decembrie 2018 - 11:04, said:

nemuritor poti sa fii si daca iti clonezi corpul si iti bagi memoria si tot in noul corp care nu sufera de nici o boala.... sau ceva  ce se poate face si acum , bagi niste celule stem in tot corpul si stimulezi regenerarea organismului.
Nu merge asa, nu uita ca ADN-ul se degradeaza cate putin la fiecare copiere Posted Image

Edited by andreic, 27 December 2018 - 14:30.


#83
Fane

Fane

    cipat

  • Grup: Senior Members
  • Posts: 28,108
  • Înscris: 05.06.2002
recoltezi celule la nastere. :P :)

#84
karax

karax

    Guru Member

  • Grup: Senior Members
  • Posts: 21,839
  • Înscris: 14.10.2017

View Postrixthina, on 27 decembrie 2018 - 14:04, said:

Totul se transforma. Cei ce pleaca se adapteaza (daca se adapteaza) la noile conditii.
Si vor fi diferiti.
Oricum, te agiti degeaba. Cauta o gagica misto si traieste-ti viata.
Dupa aceea, revino in topic(daca mai revii) si te vei amuza.
Cine pleaca, sa-i fie de bine!

Apoi, femeile au prioritate, si nu din politete.
Vor face bebelushi.  Exista inseminare artificiala, nici pentru sex nu vor lua un mascul.
Deci, ia-ti gandul, vere!
tocmai!!! motiv  sa nu ne mai batem capul cu relatii si sex ...in viitor sexul va disparea si odata cu el si relatiile umane gen gelozia si posesivitatea

View Postandreic, on 27 decembrie 2018 - 14:30, said:

Nu merge asa, nu uita ca ADN-ul se degradeaza cate putin la fiecare copiere Posted Image
dupa tehnica actuala...maine cine stie ce va fi...

#85
rixthina

rixthina

    superb membru

  • Grup: Senior Members
  • Posts: 3,497
  • Înscris: 29.10.2017

View Postkarax, on 27 decembrie 2018 - 20:34, said:


tocmai!!! motiv  sa nu ne mai batem capul cu relatii si sex ...in viitor sexul va disparea si odata cu el si relatiile umane gen gelozia si posesivitatea


dupa tehnica actuala...maine cine stie ce va fi...
Tocmai!!! Bate fierul cat e cald! Sau ai gasit scuza si nu te inhami sa devii cap de familie?

Apropo....un conducator de osti, in discursul de incurajare catre soldati inaintea bataliei:

-- Sau va credeti nemuritori?


Edited by rixthina, 28 December 2018 - 00:40.


#86
myshyk

myshyk

    Guru Member

  • Grup: Senior Members
  • Posts: 21,812
  • Înscris: 26.11.2006

View Poston64, on 19 decembrie 2018 - 21:31, said:

voi credeti ca vom putea zbura cu ceva vehicule sau minielicoptere/drone?
eu nu

bolile nu se vor putea vindeca
si da, asa e, camioanele au avansat, dar au ajuns intr-un punct din care nu prea mai au ce evolua

Eu cred ca am ajuns la apogeul tehnologiei
Deja se zboara cu drone. Cauta numai pe net.
Si totusi si camioanele vor mai evolua, stai linistit. Chiar daca tu nefiind in domeniu, n-ai cum sa afli.

#87
on64

on64

    DEGEABA, RAMAN O LEGENDA!!!

  • Grup: Senior Members
  • Posts: 3,760
  • Înscris: 17.03.2012
pai si tirurile sunt limitate la 80 chiar daca ar putea duce mai mult
ne limiteaza infrastructura?
de ce nu pot merge tirurile pe autostrada cu viteze mai mari de 80km/h?

#88
LORELYAN

LORELYAN

    Senior Member

  • Grup: Senior Members
  • Posts: 5,704
  • Înscris: 15.08.2006

View Postandreic, on 27 decembrie 2018 - 14:30, said:

.....nu uita ca ADN-ul se degradeaza cate putin la fiecare copiere Posted Image

...mai putin in cazul ...evolutiei, unde ADN-ul se upgradeaza !... cica !

#89
mdionis

mdionis

    Senior Member

  • Grup: Senior Members
  • Posts: 3,337
  • Înscris: 18.05.2009

View PostLORELYAN, on 29 decembrie 2018 - 02:37, said:

...mai putin in cazul ...evolutiei, unde ADN-ul se upgradeaza !... cica !

Fara "cica". Da si nu. Nu, pentru ca majoritatea covarsitoare a mutatiilor non-neutre, produc efecte negative (deci degradare). Da, pentru ca, pe un ansamblu statistic de indivizi ce alcatuiesc o populatie, este mai probabil sa apara si mutatii favorabile al caror rezultat este amplificat de selectia naturala in detrimentul versiunilor precedente -> evolutie.
In cazul unei populatii fondatoare foarte restranse ca numar de indivizi, bazinul genetic este si el restrans, ceea ce inseamna ca exista putina variabilitate naturala si deci putine combinatii genetice disponibile initial, ceea ce face populatia initiala foarte vulnerabila. In plus, probabilitatea aparitiei unor mutatii favorabile intr-o astfel de populatie este suficient de scazuta pentru a nu paria pe eventualitatea aparitiei de "supra-oameni" ci mai curand pe disparitia populatiei pe termen mediu/lung.

#90
Infinitty

Infinitty

    Senior Member

  • Grup: Senior Members
  • Posts: 7,401
  • Înscris: 14.12.2008
Recent am urmarit noul sezon Ancient Aliens pe Nat Geo si am descoperit cateva stiri interesante dupa ce ulterior am cautat pe google.

Recent s-a descoperit lemnul superdens, un material de cca. 10 ori mai rezistent decat oțelul si antiglont aproape cat kevlarul si se pare ca noul material este foarte ieftin si se fabrica deja industrial.

Savantii spun ca el va inlocui aluminiul din industria aeronautica cat si tabla si otelul din industria auto cat si din constructii.

Un alt material revolutionar descoperit recent este o forma speciala de grafen de 100 de ori mai rezistent decat otelul ori chiar mai mult si este usor precum plasticul.

Alt metspamal este folia 2D de argint, un material special de cateva ori mai rezistent decat oțelul si usor precum folia de plastic.

In fine un metal transuranic numit Moscovium se pare ca este posibil sa fie acel metal radioactiv stabil care ar putea oferi transporturilor ideea de zbor prin efect tunel, adica viteza infinita printr-o dimensiune speciala. Este acelasi material misterios descris de Bob Lazarus in anii 80 ca stand la baza modificarii gravitatiei prin ecranare de catre navele UFO studiate in Area 51.

Nu stim ce va fi cu acest Moscovium, dar un alt material numit Stanum, un material 2D ofera conductibilitate la temperatura ambientala si deci am avea premisele realizarii de obiecte si dispozitive levitante precum cele din Star Wars de la obiecte si dispozitive pana la nave cosmice, nave atmosferice, un fel de motociclete si vehicule levitante la diferite altitudini.

https://en.wikipedia...l_communication

Superluminal communication
Main article: Faster-than-light communication
Faster-than-light communication is, according to relativity, equivalent to time travel. What we measure as the speed of light in a vacuum (or near vacuum) is actually the fundamental physical constant c. This means that all inertial observers, regardless of their relative velocity, will always measure zero-mass particles such as photons traveling at c in a vacuum. This result means that measurements of time and velocity in different frames are no longer related simply by constant shifts, but are instead related by Poincaré transformations. These transformations have important implications:
The relativistic momentum of a massive particle would increase with speed in such a way that at the speed of light an object would have infinite momentum.
To accelerate an object of non-zero rest mass to c would require infinite time with any finite acceleration, or infinite acceleration for a finite amount of time.
Either way, such acceleration requires infinite energy.
Some observers with sub-light relative motion will disagree about which occurs first of any two events that are separated by a space-like interval.[45] In other words, any travel that is faster-than-light will be seen as traveling backwards in time in some other, equally valid, frames of reference,[46] or need to assume the speculative hypothesis of possible Lorentz violations at a presently unobserved scale (for instance the Planck scale).[citation needed] Therefore, any theory which permits "true" FTL also has to cope with time travel and all its associated paradoxes,[47] or else to assume the Lorentz invariance to be a symmetry of thermodynamical statistical nature (hence a symmetry broken at some presently unobserved scale).
In special relativity the coordinate speed of light is only guaranteed to be c in an inertial frame; in a non-inertial frame the coordinate speed may be different from c.[48] In general relativity no coordinate system on a large region of curved spacetime is "inertial", so it is permissible to use a global coordinate system where objects travel faster than c, but in the local neighborhood of any point in curved spacetime we can define a "local inertial frame" and the local speed of light will be c in this frame,[49] with massive objects moving through this local neighborhood always having a speed less than c in the local inertial frame.
Justifications
Relative permittivity or permeability less than 1
The speed of light
{\displaystyle c={\frac {1}{\sqrt {\varepsilon _{0}\mu _{0}}}}\ }{\displaystyle c={\frac {1}{\sqrt {\varepsilon _{0}\mu _{0}}}}\ }
is related to the vacuum permittivity ε0 and the vacuum permeability μ0. Therefore, not only the phase velocity, group velocity, and energy flow velocity of electromagnetic waves but also the velocity of a photon can be faster than c in a special material has the constant permittivity or permeability whose value is less than that in vacuum.[50]
Casimir vacuum and quantum tunnelling
Special relativity postulates that the speed of light in vacuum is invariant in inertial frames. That is, it will be the same from any frame of reference moving at a constant speed. The equations do not specify any particular value for the speed of the light, which is an experimentally determined quantity for a fixed unit of length. Since 1983, the SI unit of length (the meter) has been defined using the speed of light.
The experimental determination has been made in vacuum. However, the vacuum we know is not the only possible vacuum which can exist. The vacuum has energy associated with it, called simply the vacuum energy, which could perhaps be altered in certain cases.[51] When vacuum energy is lowered, light itself has been predicted to go faster than the standard value c. This is known as the Scharnhorst effect. Such a vacuum can be produced by bringing two perfectly smooth metal plates together at near atomic diameter spacing. It is called a Casimir vacuum. Calculations imply that light will go faster in such a vacuum by a minuscule amount: a photon traveling between two plates that are 1 micrometer apart would increase the photon's speed by only about one part in 1036.[52] Accordingly, there has as yet been no experimental verification of the prediction. A recent analysis[53] argued that the Scharnhorst effect cannot be used to send information backwards in time with a single set of plates since the plates' rest frame would define a "preferred frame" for FTL signalling. However, with multiple pairs of plates in motion relative to one another the authors noted that they had no arguments that could "guarantee the total absence of causality violations", and invoked Hawking's speculative chronology protection conjecture which suggests that feedback loops of virtual particles would create "uncontrollable singularities in the renormalized quantum stress-energy" on the boundary of any potential time machine, and thus would require a theory of quantum gravity to fully analyze. Other authors argue that Scharnhorst's original analysis, which seemed to show the possibility of faster-than-c signals, involved approximations which may be incorrect, so that it is not clear whether this effect could actually increase signal speed at all.[54]
The physicists Günter Nimtz and Alfons Stahlhofen, of the University of Cologne, claim to have violated relativity experimentally by transmitting photons faster than the speed of light.[38] They say they have conducted an experiment in which microwave photons — relatively low-energy packets of light — travelled "instantaneously" between a pair of prisms that had been moved up to 3 ft (1 m) apart. Their experiment involved an optical phenomenon known as "evanescent modes", and they claim that since evanescent modes have an imaginary wave number, they represent a "mathematical analogy" to quantum tunnelling.[38] Nimtz has also claimed that "evanescent modes are not fully describable by the Maxwell equations and quantum mechanics have to be taken into consideration."[55] Other scientists such as Herbert G. Winful and Robert Helling have argued that in fact there is nothing quantum-mechanical about Nimtz's experiments, and that the results can be fully predicted by the equations of classical electromagnetism (Maxwell's equations).[56][57]
Nimtz told New Scientist magazine: "For the time being, this is the only violation of special relativity that I know of." However, other physicists say that this phenomenon does not allow information to be transmitted faster than light. Aephraim Steinberg, a quantum optics expert at the University of Toronto, Canada, uses the analogy of a train traveling from Chicago to New York, but dropping off train cars from the tail at each station along the way, so that the center of the ever-shrinking main train moves forward at each stop; in this way, the speed of the center of the train exceeds the speed of any of the individual cars.[58]
Winful argues that the train analogy is a variant of the "reshaping argument" for superluminal tunneling velocities, but he goes on to say that this argument is not actually supported by experiment or simulations, which actually show that the transmitted pulse has the same length and shape as the incident pulse.[56] Instead, Winful argues that the group delay in tunneling is not actually the transit time for the pulse (whose spatial length must be greater than the barrier length in order for its spectrum to be narrow enough to allow tunneling), but is instead the lifetime of the energy stored in a standing wave which forms inside the barrier. Since the stored energy in the barrier is less than the energy stored in a barrier-free region of the same length due to destructive interference, the group delay for the energy to escape the barrier region is shorter than it would be in free space, which according to Winful is the explanation for apparently superluminal tunneling.[59][60]
A number of authors have published papers disputing Nimtz's claim that Einstein causality is violated by his experiments, and there are many other papers in the literature discussing why quantum tunneling is not thought to violate causality.[61]
It was later claimed by Eckle et al. that particle tunneling does indeed occur in zero real time.[62] Their tests involved tunneling electrons, where the group argued a relativistic prediction for tunneling time should be 500–600 attoseconds (an attosecond is one quintillionth (10−18) of a second). All that could be measured was 24 attoseconds, which is the limit of the test accuracy. Again, though, other physicists believe that tunneling experiments in which particles appear to spend anomalously short times inside the barrier are in fact fully compatible with relativity, although there is disagreement about whether the explanation involves reshaping of the wave packet or other effects.[59][60][63]
Give up (absolute) relativity
Because of the strong empirical support for special relativity, any modifications to it must necessarily be quite subtle and difficult to measure. The best-known attempt is doubly special relativity, which posits that the Planck length is also the same in all reference frames, and is associated with the work of Giovanni Amelino-Camelia and João Magueijo.[citation needed]
There are speculative theories that claim inertia is produced by the combined mass of the universe (e.g., Mach's principle), which implies that the rest frame of the universe might be preferred by conventional measurements of natural law. If confirmed, this would imply special relativity is an approximation to a more general theory, but since the relevant comparison would (by definition) be outside the observable universe, it is difficult to imagine (much less construct) experiments to test this hypothesis.[citation needed]



Heim theory
In 1977, a paper on Heim theory theorized that it may be possible to travel faster than light by using magnetic fields to enter a higher-dimensional space.[67]


Superfluid theories of physical vacuum
Main article: Superfluid vacuum theory
In this approach the physical vacuum is viewed as the quantum superfluid which is essentially non-relativistic whereas the Lorentz symmetry is not an exact symmetry of nature but rather the approximate description valid only for the small fluctuations of the superfluid background.[77] Within the framework of the approach a theory was proposed in which the physical vacuum is conjectured to be the quantum Bose liquid whose ground-state wavefunction is described by the logarithmic Schrödinger equation. It was shown that the relativistic gravitational interaction arises as the small-amplitude collective excitation mode[78] whereas relativistic elementary particles can be described by the particle-like modes in the limit of low momenta.[79] The important fact is that at very high velocities the behavior of the particle-like modes becomes distinct from the relativistic one - they can reach the speed of light limit at finite energy; also, faster-than-light propagation is possible without requiring moving objects to have imaginary mass.[80][81]

Variable speed of light
Main article: Variable speed of light
In physics, the speed of light in a vacuum is assumed to be a constant. However, hypotheses exist that the speed of light is variable.
The speed of light is a dimensional quantity and so cannot be measured.[clarification needed][102] Measurable quantities in physics are, without exception, dimensionless, although they are often constructed as ratios of dimensional quantities. For example, when the height of a mountain is measured, what is really measured is the ratio of its height to the length of a meter stick. The conventional SI system of units is based on seven basic dimensional quantities, namely distance, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity.[103] These units are defined to be independent and so cannot be described in terms of each other. As an alternative to using a particular system of units, one can reduce all measurements to dimensionless quantities expressed in terms of ratios between the quantities being measured and various fundamental constants such as Newton's constant, the speed of light and Planck's constant; physicists can define at least 26 dimensionless constants which can be expressed in terms of these sorts of ratios and which are currently thought to be independent of one another.[104] By manipulating the basic dimensional constants one can also construct the Planck time, Planck length, and Planck energy which make a good system of units for expressing dimensional measurements, known as Planck units.
João Magueijo proposed a different set of units, a choice which he justifies with the claim that some equations will be simpler in these new units. In the new units he fixes the fine structure constant, a quantity which some people, using units in which the speed of light is fixed, have claimed is time-dependent. Thus in the system of units in which the fine structure constant is fixed, the observational claim is that the speed of light is time-dependent.


https://rationalwiki.../wiki/Moscovium

https://www.google.r...rial&gs_l=psy-
ab.1.1.0i7i10i30l6j0i7i30j0i7i10i30j0j0i30.11209.11648..16157...0.0..0.100.182.1j1......0....1..gws-wiz.HdO9S2tyf2Q

https://physicsworld...her-than-steel/

https://www.google.r...Q4dUDCAs&uact=5

https://www.google.r...iw=1366&bih=625

Edited by Infinitty, 08 September 2019 - 11:03.


Anunturi

Bun venit pe Forumul Softpedia!

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

Forumul Softpedia foloseste "cookies" pentru a imbunatati experienta utilizatorilor Accept
Pentru detalii si optiuni legate de cookies si datele personale, consultati Politica de utilizare cookies si Politica de confidentialitate