The Unity of Physics: From New Materials to Fundamental Laws of Nature by David Tong, Cambridge

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Aspen Physics

Күн бұрын

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@KriRama 3 жыл бұрын

I could listen to David Tong lectures for days 🤓

@WorldView22 2 жыл бұрын

I second that!

@JonnyMath 10 ай бұрын

So do I!!!🤩🤩🤩

@gameofquantity96 10 ай бұрын

Same

@baoboumusic 4 жыл бұрын

This is the kind of teachers we need, at any level. He can make you enthousiastic for a topic you don't have a hope in hell of ever fully understanding.

@frankdimeglio8216 3 жыл бұрын

HOW AND WHY TIME DILATION CLEARLY AND ULTIMATELY PROVES (ON BALANCE) THAT E=MC2 IS F=MA: The Earth/ground is understood as comprising the FULL DISTANCE in/of SPACE, AS E=mc2 IS F=ma. Time DILATION ULTIMATELY proves that electromagnetism/ENERGY IS GRAVITY. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE. The stars AND PLANETS are POINTS in the night sky. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, as ELECTROMAGNETISM/energy is gravity. So, E=mc2 IS F=ma. Overlay what is THE EYE in BALANCED RELATION to/WITH what is the Earth. (LOOK at what is the BLUE SKY. The Earth is ALSO BLUE.) NOW, notice the black space of what is THE EYE. GREAT !!! Again, the stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed at the center of what is the Sun (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; as ELECTROMAGNETISM/energy is gravity. Great. E=mc2 IS F=ma. Accordingly, the rotation of WHAT IS THE MOON matches it's revolution. Therefore, gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; as ELECTROMAGNETISM/energy is gravity. It is proven. Gravity IS ELECTROMAGNETISM/energy. Ultimately and truly, INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience. BALANCE and completeness go hand in hand. Ultimately and truly, TIME is NECESSARILY possible/potential AND actual IN BALANCE; as ELECTROMAGNETISM/energy is gravity; as E=mc2 IS F=ma. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. By Frank DiMeglio

@baoboumusic 3 жыл бұрын

@@frankdimeglio8216 whoah buddy, lay off the mushrooms. And read a science book, because what you are saying makes very little sense. Good luck man.

@frankdimeglio8216 3 жыл бұрын

WHY THE TIDES ARE NECESSARILY QUANTUM GRAVITATIONAL IN CONJUNCTION WITH WHAT IS FUNDAMENTALLY BALANCED ELECTROMAGNETIC/GRAVITATIONAL FORCE/ENERGY, AS E=MC2 IS F=MA: Gravity AND ELECTROMAGNETISM/ENERGY are linked AND BALANCED opposites, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. E=mc2 IS F=ma. Gravity AND ELECTROMAGNETISM/ENERGY are linked AND BALANCED in AND out of SPACE AND time, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. INSTANTANEITY is FUNDAMENTAL to the FULL and proper understanding of physics/physical experience, AS electromagnetism/ENERGY IS GRAVITY. The Sun, the Earth, AND what is THE MOON are subject to the fact that E=mc2 IS F=ma. The stars AND PLANETS are POINTS in the night sky. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Therefore, the tides are NECESSARILY quantum gravitational in a fundamentally BALANCED fashion; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. E=mc2 IS F=ma. SO, the Moon is a linked AND BALANCED opposite in relation to the Earth AND what is THE SUN; AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. ACCORDINGLY, the rotation of WHAT IS THE MOON necessarily MATCHES it's revolution; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. Gravity IS ELECTROMAGNETISM/ENERGY. It ALL CLEARLY makes perfect sense. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. (BALANCE AND completeness go hand in hand.) Time DILATION proves that electromagnetism/ENERGY IS GRAVITY (ON BALANCE), AS E=mc2 IS F=ma. INDEED, time is NECESSARILY possible/potential AND ACTUAL (IN BALANCE); AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Again, it ALL CLEARLY makes perfect sense. BALANCE AND completeness go hand in hand. Great. The tides are thus shown to necessarily be a BALANCED electromagnetic/gravitational manifestation (or form) AND effect. By Frank DiMeglio

@frankdimeglio8216 3 жыл бұрын

Frank DiMeglio is the recognized world authority on gravitation BY FAR.

@baoboumusic 3 жыл бұрын

@@frankdimeglio8216 I assume this means you fall a lot?

@narayankhanal5240 3 жыл бұрын

Man having good heart and good brain... To listen You is Swimming through deep ocean filled with knowledge and wisdom.

@nmajhi9555 5 жыл бұрын

i love this man .. the way of talking and overall

@frankdimeglio8216 3 жыл бұрын

@omniver 5 жыл бұрын

excellent lecture David, thank you

@onebylandtwoifbysearunifby5475 3 жыл бұрын

This was a clarifying lecture. Well Done.

@enlongchiou 7 ай бұрын

It's base on Witten's 4D knot theory in physics g*m^2=137.036*e+=(k*e^2/e-)*g*m^2 which is self interact graviton g*m^2=ch/2pi : solution of GR field equation ch=8pi*g*(m*c^2/2)^2/c^2 in 4D space time oscillating between 3 quantum black hole at Planck scale l=g*m/c^2=(h*g/2pi*c^3)^0.5 which deduce ch=2pi*g*m^2, m=(ch2pi*g)^0.5=2.176466*10^-8 kg, proton scale pl=g(p)*(4pi*pm/3)/c^2=8.809*10^-16 meter, Atom scale A^2=g(p)*pi*me/128.4980143*c^2 generate strong force g(p)=g*m^2/pm^2=g*(pl/4.1888*l)^2=1.13*10^28, EM force between proton[pm], electron[me] in Atom [A] by k*e^2=g(p)*pm^2/137.036=ch/(2pi*137.036)[e+]=me*(c/137.036)^2*A[e-]=4pi*g(p)*pm*me*137.036/128.51991 which can reproduce Dirac's quantum field deduce 0.001161409725=1/(2pi*137.036) : anomalous electron magnetic moment of (g-2)/2 factor from positron e+=ch/(2pi*137.036)=k*e^2, k*e^2 can turn into quantum gravity 2pi*k*e^2*137.036=ch=(2*A1*137.036*pm*c^2)*(4pi*A*137.036)=En*L produce photon r=En=ch/L=chR=me*(c/137.036)^2/2=13.6*e[1.602*10^-19], deduce weak force unite g(p) with k*e^2 by pm/me=1836.1527=4pi*137.036^2/128.51991=1/(4*A1*137.036^3)=(pi/(128.4980143*A*137.036))^0.5, from it can deduce 85.73% ratio between muon[105 mev=(3*137.036/2)*0.511], electron[0.511 mev=me*c^2=g*m^2*137.036/A] decay from strong force by 14.27=A/(3*137.036*(A-A1))=128.51991/(3*137.036*(128.51991-128.49801421207))=128.49801421207/3^2 where A1=A*(128.4980143/128.51991)=5.2908712*10^-11 meter : oscillation of string at Atom scale cause Einstein's Brownian motion we can observe, at 3/28/24 team of scientists in nature magazine claimed found graviton g*m^2 in semiconductor material in CGM state as Mojorana particle in FQHE state which magnetic field at Atom scale come from positron which's suspend in negative vacuum energy of Dirac's sea make super conductor material at low temperature which do not knock positron out of vacuum annihilate with electron produce heat[photon] will decreasing magnetic field, which will make magnet in motion float in midair, from pm/me also can deduce 2pi*0.001161409725*(me/pm)^2=(me/pm)^2/137.036=2.16*10^-9=128.4980143*A/3.1415926=0.00116592026-0.00116591810 : discrepancy of muon magnetic moment of (g-2)/2 factor between experiment data[0.001165920+((61-41)+(57-25))*10^-9/2], theoretical prediction[0.00116584719+6845*10^-7+154*10^-8+92*10^-9] from Fermilab at 8/10/23 due to self interact graviton g*m^2 unite 4 force of nature produce super conductor keep muon, electron wobbling forever which mean test get same result at anytime.

@jamesspry3294 2 жыл бұрын

I just watched two of his presentations, and now my brain hurts. I'm totally inspired and in wonder, but now with a hurty brain. I think I'll do it again tomorrow...!

@ableone7855 3 жыл бұрын

Excellent presentation.

@sonarbangla8711 6 ай бұрын

BRILLIANT.

@jacobchateau6191 3 жыл бұрын

Crazy seeing Dan Freed introducing David Tong!!

@mattman8685 3 жыл бұрын

Good work! And great show

@wordysmithsonism8767 2 жыл бұрын

Superb and made a new fan of me

@cowboybob7093 Жыл бұрын

5:00 He's channeling John Oliver #humor I put the time stamp in to help you with context since your comment is 4 months old

@sauvikbhattacharjee2873 3 жыл бұрын

Please enable the captions.

@andrewjwade 5 жыл бұрын

How was 0.11008 calculated and how precise are those decimal places?

@connerkai 5 жыл бұрын

If decimal places are reported, that should indicate that they are accurate to the place they are reported, at least.

@danielolder695 5 жыл бұрын

Boiling liquid in 3 dimensions is described by a model known as the 3d Ising Model. The 0.11008 is what is called a critical exponent (see en.wikipedia.org/wiki/Ising_critical_exponents). The technique used to calculate the critical exponents for the 3D Ising model is called "conformal bootstrap". This was calculated in the following paper arxiv.org/pdf/1603.04436.pdf.

@MandarJoshi 3 жыл бұрын

Big things do not affect small things, meanwhile Gravity be like hold my beer...

@jazziegurlt22 Жыл бұрын

I'm confused as to how big things don't influence little things, as we literally revolve around the sun?!

@anjalir1026 2 жыл бұрын

"Big things do not affect little things, that is why we do have Astrology department in our universities"

@abdennourabdennour2755 4 жыл бұрын

excellent, that'"s what we call physics.... thanks

@sumubiswas6548 4 жыл бұрын

He is amazing

@glenn-younger 4 жыл бұрын

Hahahaha! "Topological Insulators are not boring... they're just superficial." 26:16

@sinukus 11 ай бұрын

Great content, bad audio

@elfootman 10 ай бұрын

The opening "story" took waaay too long... Get to the point already! Too dumbed down, filled with hyporbole and metaphors, and of course, side stories -_-

@2550205 11 ай бұрын

39:15 I weigh the better part of 175 pounds this is my static electrochemaegneto mass real it ive to the 24000 mile spin i am in on the ball of blue fire flying through the big sky in the little sky at a rate of 67000 miles per 1/24th of 1/1000 of the other one the chair being sat on by me weighs about 175 pounds give or take lunch and a couple of cushions the distance between me and the chair is now zero or the thickness of a of a thin blue line what is the attraction between the chair and me other than the idea that wanted to get out of my head and onto your earlobe? the energy that was in me is going to be in me at the weight of water at some density other than room temprature occupying a similar space in circular terms on the same plane as the chair for a while now and the only way the attraction between water as me and the chair as water is going to change is if the plane we both sit on changes by some force either external to us such as an earth quake or the idea thathe earth just stopped spinning 1000 miles per horror as the earthness filling the at most sphere occupied by us and all the rest of it spinning at 67000 miles per horror as the rest of the rest of it outside of the at most at most non existant sphere known as the solar system spins at exactly what rate real relative to what axis beginning where and ending whereever which is where this leads amen 11008 in base 6 122544 7776 +2592+ the radius of the sun + A straight line + hours in a day on the 15 degree scale + two squared or is it two squares from a well that pays like a job in base 60 3328 you figure it

@frankdimeglio8216 3 жыл бұрын

The page Nexus of Physics has now given the following two writings the thumbs up on their page. ALSO consider this: E=mc2 is DIRECTLY and fundamentally derived from F=ma, AS E=mc2 IS F=ma; AS time DILATION proves that electromagnetism/ENERGY IS GRAVITY. THE UNIVERSAL AND MATHEMATICAL PROOF THAT ELECTROMAGNETISM/ENERGY IS GRAVITY: Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. E=mc2 is DIRECTLY and fundamentally derived from F=ma. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. SO, gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE consistent with/as what is BALANCED electromagnetic/gravitational force/ENERGY; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent with/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity AND ELECTROMAGNETISM/ENERGY are linked AND BALANCED opposites, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. THE SUN AND THE EARTH are described and represented by BOTH F=ma AND E=mc2. F=ma AND E=mc2 PROVE that ELECTROMAGNETISM/ENERGY IS GRAVITY, AS ALL of SPACE is NECESSARILY electromagnetic/gravitational (IN BALANCE). Objects fall at the same rate (neglecting air resistance, of course), AS the SPEED OF LIGHT is RELATIVELY CONSTANT AS WELL. ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity IS ELECTROMAGNETISM/ENERGY. In fact, the rotation of THE MOON MATCHES it's revolution; AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. So, THE PLANETS (INCLUDING WHAT IS THE EARTH) are not "falling" in what is "curved SPACE" in RELATION to what is THE SUN. This is nonsense. E=mc2 is DIRECTLY AND FUNDAMENTALLY DERIVED FROM F=ma. This truly explains PERPETUAL MOTION. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. The stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed the center of THE SUN (as A POINT, of course), as the reduction of SPACE is offset by (or BALANCED with) the SPEED OF LIGHT; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. By Frank DiMeglio EINSTEIN NEVER UNDERSTOOD PHILOSOPHY, MATHEMATICS, AND PHYSICS, AS HE HAS BEEN TOTALLY OUTSMARTED BY SIR FRANK MARTIN DIMEGLIO: The balance of being AND EXPERIENCE is ESSENTIAL. BALANCE AND completeness go hand in hand. THE SELF represents, FORMS, and experiences a COMPREHENSIVE approximation of experience in general by combining conscious and unconscious experience. MOREOVER, the ability of THOUGHT to DESCRIBE OR RECONFIGURE sensory experience is ULTIMATELY dependent upon the extent to which THOUGHT IS SIMILAR TO sensory experience. THOUGHTS ARE INVISIBLE. Dream experience is/involves true/real QUANTUM GRAVITY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. MOST IMPORTANTLY, in dreams, BODILY/VISUAL EXPERIENCE is invisible AND VISIBLE IN BALANCE. IMPORTANTLY, dream experience is possible/potential AND actual IN BALANCE. THE EYE is ALSO the body. Dreams improve upon memory AND UNDERSTANDING. Indeed, there is no outsmarting the GENIUS of dreams. OVERLAY what is THE EYE in BALANCED RELATION to/with what is THE EARTH. NOW, get a good LOOK at what is the translucent, SEMI-SPHERICAL, QUANTUM GRAVITATIONAL, AND BLUE sky. Excellent. The DOME of a person's EYE is ALSO VISIBLE. THE EARTH IS also BLUE (as water). F=ma AND E=mc2 PROVE that, why, and how ELECTROMAGNETISM/ENERGY IS GRAVITY. This NECESSARILY represents, INVOLVES, and describes what is possible/potential AND actual IN BALANCE. SO, it is NECESSARILY a matter of precisely how these equations are understood in a BALANCED, EXTENSIVE, AND INTEGRATED fashion in RELATION to/with WHAT IS THOUGHT. The INTEGRATED EXTENSIVENESS of THOUGHT (AND description) is improved in the truly superior mind. E=mc2 is DIRECTLY and fundamentally derived from F=ma. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. The stars AND PLANETS are POINTS in the night sky. A PHOTON may be placed at the center of THE SUN (as A POINT, of course), as the reduction of SPACE is offset by (or BALANCED with) the SPEED OF LIGHT; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Get a good LOOK at what is THE EYE. POINTS are points. Gravity IS ELECTROMAGNETISM/ENERGY. ELECTROMAGNETISM/ENERGY IS GRAVITY. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent with/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. F=ma AND E=mc2 PROVE that ELECTROMAGNETISM/ENERGY IS GRAVITY, AS ALL of SPACE is NECESSARILY electromagnetic/gravitational IN BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT. The stars AND PLANETS are POINTS in the night sky. OPEN your EYES. NOW, LOOK at what is the FLAT, SETTING, AND ORANGE SUN (with the SPACE around it THEN going invisible AND VISIBLE IN BALANCE). This ORANGE SUN manifests or forms at what is EYE LEVEL/BODY HEIGHT as well. This ORANGE SUN is manifest ON BALANCE as what is NECESSARILY the BODILY/VISUAL EXPERIENCE of THE EARTH/LAVA. The viscosity of LAVA IS BETWEEN what is manifest as WATER AND THE EARTH/GROUND. ALL of SPACE is NECESSARILY electromagnetic/gravitational IN BALANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. F=ma AND E=mc2 do provide absolute, BALANCED, THEORETICAL, and CLEAR proof that ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. THEREFORE, the rotation of THE MOON MATCHES it's revolution. MOREOVER, a given PLANET (INCLUDING WHAT IS THE EARTH) sweeps out equal areas in equal times; AND this is THEN consistent with/as what is F=ma, E=mc2, AND what is PERPETUAL MOTION; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. It ALL makes perfect sense. BALANCE AND completeness go hand in hand. THE PLANETS (INCLUDING WHAT IS THE EARTH) are NOT "falling" in what is "curved SPACE". In fact, this is nonsense. It is PROVEN. By Frank DiMeglio

@WorldView22 2 жыл бұрын

At 35:55 there are significant objections to prof. Tong's statement that quantum physics is not implicated in the study of consciousness. General diagrams like that (i.e., 'fields arranged by purity' and importance to each other) are OK as a rule of thumb but are very questionable in terms of their universal validity. At 51:21 prof. Tong exhibits the illusion - not of free will but - of the knowability of science. He might need to traverse the stages that Dirac did and hopefully (for his own sake) arrive at the truth about the nature of this world and humanity. Scientists (especially the great ones like him) should stick to science (best, to their branch of science only) and be humbled by the puny knowledge they acquire, not get arrogant and overreach for they sound foolish.

@frankdimeglio8216 3 жыл бұрын

He's lying about physics.

@robertdusemund1045 3 жыл бұрын

Things you don't understand aren't untrue by law.

@frankdimeglio8216 3 жыл бұрын

@@robertdusemund1045 ELECTROMAGNETISM/ENERGY IS CLEARLY GRAVITY: ELECTROMAGNETISM/energy is gravity. This is proven by F=ma AND E=mc2. STAND UPRIGHT, and look directly down at the earth/ground. Gravity AND ELECTROMAGNETISM/energy are linked AND balanced, as ELECTROMAGNETISM/energy is gravity. Indeed, touch AND feeling blend; as gravity IS ELECTROMAGNETISM/energy. Accordingly, gravity/acceleration involves balanced inertia/inertial resistance; as ELECTROMAGNETISM/energy is gravity. This explains F=ma AND E=mc2. Therefore, "mass"/energy involves balanced inertia/inertial resistance consistent WITH/as what is balanced ELECTROMAGNETIC/GRAVITATIONAL force/energy; as ELECTROMAGNETISM/energy is gravity. The VISIBLE DOME of the EYE/body is visible up to (AND AT) half of a body length (given what is optimal and natural lighting). Comparatively, the FULLY VISIBLE body is visible (FULLY, that is) at a DISTANCE of a FULL body length. NOW, look down at what is the FULL field of vision of the EARTH/GROUND. The eye IS the body. Think about it. Great. Consider the blue earth. Consider that half of the blue EARTH does remain constantly illuminated. The semi-spherical BLUE sky AND the EARTH/ground are linked AND balanced. That is clear. Think. The moon AND the earth/ground are linked AND balanced. The moon AND the earth/ground have the same curvature (given a clear horizon, of course). The ORANGE, setting, AND flat sun (with the space around it THEN going INVISIBLE/visible) is LINKED AND BALANCED WITH the moon, the earth/GROUND, AND LAVA, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. We want to balance being AND experience in conjunction with providing what is a seamless and balanced whole. The composition of lunar rocks is practically identical to that of earth rocks. Now, consider what is the ORANGE AND SETTING SUN. Vision/visual experience AND touch/tactile experience are thus successfully RELATED. The moon AND the ORANGE sun are about the SAME SIZE as the EYE. I HAVE UNIFIED PHYSICS/PHYSICAL EXPERIENCE. Great !!!!! By Frank DiMeglio

@frankdimeglio8216 3 жыл бұрын

@@robertdusemund1045 He is knowingly and deceitfully lying about the fundamentals regarding physics/physical experience. FACT.

@frankdimeglio8216 3 жыл бұрын

I'm recognized as having mathematically unified physics.

@robertdusemund1045 3 жыл бұрын

@@frankdimeglio8216 Nope! Electromagnetism cannot be Gravity. Electromagnetism can be shielded, gravity cannot. These interactions can only be united if we postulate at least 11 dimensions. But that is impossible, otherwise we would not exist. Life is only possible under the conditions of 4-dimensional space-time (3 space + 1 time dimension), read Einstein and you will know what I mean.