otp: spacetime

“The Esa animation was created from a computer model of what how the fabric of our universe would change as a result of a titanic collision between black holes”

“What a collision between two black holes would look like if we could see gravitational waves. These elusive waves are ripples in the fabric of space-time which could reveal how the universe was created nearly 14 billion years ago.”

Full video of simulation here

10

Is Time Travel Possible, According To Science?

“You can witness the evolution and destruction of humanity; the end of the Earth and Sun; the dissociation of our galaxy; the heat death of the Universe itself. So long as you have enough power in your space ship, you can travel as far into the future as you like.”

Have you ever wondered about time travel? Perhaps you have your destination in the far future, and want to see how it all turns out? Maybe you want to return to the past, and alter the future or present by your actions there? Or maybe you want to freeze time altogether? If you want to know whether it’s possible, the physics of relativity holds the answer. Special relativity allows us to control our motion through time by manipulating our motion through space. The more we move through space, the less we move through time, allowing us to travel as far as we want into the future, limited only by our energy available for space travel. But going to the past requires some specific solutions to general relativity, which may (or may not) describe our physical Universe.

What’s the status of traveling through time? Come get the scientific story (with a brand new podcast) today!

The Space-Time Continuum in BBC’s Sherlock Part II: Reflection and Reproduction

So, @tjlcisthenewsexy made some great comments on the original The Space-Time Continnum in BBC’s Sherlock meta and I started to reply, but then I had a big breakthrough and I feel it needs its own post.

The amount of parallels and direct homages to previous episodes in Series Four are more than numerous at this point. There are so many that its almost like they are re-doing entire episodes. Well, they are. The reason and method of which was confounding me for awhile, but I figured out the reason with my original Space-Time meta, and the method I just discovered this morning.

Here is a basic timeline of episodes in BBC’s Sherlock

Now, accounting for what we learned in The Space-Time Continuum Part I meta, here is some additional information:

The glass in TAB serves as a reflection or mirror between Series three and Series Four, which is why the Series MIRROR each other, as in literally mirror. 

EDIT TO ADD: @tjlcisthenewsexy pointed out the awesome phrasing that Molly gives us in HLV during Sherlock’s MP fall after being shot. She wonders if he should go forwards or backwards. This moment could easily be considered a second zero null vector because it is at this point Sherlock decides to start going backwards-towards TRF. Didn’t it seem odd how quickly he forgave Mary and how quickly The Watson’s marriage was back on track? That’s because he started rewinding the state of their relationship to the beginning of that episode!!!

(Interesting Side Note about Peppers Ghost, the parlor trick used in TAB. (Taken from Wikipedia)

The basic trick involves a stage that is specially arranged into two rooms, one that people can see into or the stage as a whole, and a second that is hidden to the side, the “blue room”. A plate of glass (or Plexiglas or plastic film) is placed somewhere in the main room at an angle that reflects the view of the blue room towards the audience. Generally this is arranged with the blue room to one side of the stage, and the plate on the stage rotated around its vertical axis at 45 degrees.[2] Care must be taken to make the glass as invisible as possible, normally hiding the lower edge in patterning on the floor and ensuring lights do not reflect off it.

When the lights are bright in the main room and dark in the blue room, the reflected image cannot be seen. When the lighting in the blue room is increased, often with the main room lights dimming to make the effect more pronounced, the reflection becomes visible and the objects within the blue room seem to appear in thin air. A common variation uses two blue rooms, one behind the glass and one to the side, which can be switched visible or invisible by alternating the lighting. (x)

This would explain Blue light hell @skulls-and-tea!! Every time we see a blue light, what we are witnessing is a reflection of something else from the series!)


So, the three episodes of each series literally reflect each other like this:

So the episode breakdown would look like this:

Do you see how the series are literal reflections of each other? There is of course still parallels to each of the episodes outside of this flow chart (like illusions to Sumatra in TEH and TST), but that can be accounted for by the fact that time isn’t actually linear. While these series reflect eachother as a basic method of understanding, the space of each episode still exists all in one time, so there will still be homages to “other” space-times.

The reflection of the two series explains why The Six thatchers is so similar to His Last Vow, with the guns and the slo-mo gunshot and Mary’s secret assassin storyline and would help a lot of us EMPers who are so attached to HLV being the beginning of EMP realize why we thought this so vehemently after TST. TLD and TSoT are connected by their emotional focus and their progression of John and Sherlock’s relationship. They are also linked by the only two JohnLock hugs in existence. TEH and TFP are very similar in the countdown/bomb motifs, bond-esque baddie plots, A focus on Mycroft and Sherlock’s relationship, and the inclusion of The Holmes parents. 

Now, if you notice, Series Three and Four also has A LOT of parallels to Series Two, but they don’t work as a mirror! Series 3 & 4 are not a reflection of Series 2, but a reproduction of it! If Sherlock is working is way through how to defeat Moriarty at point zero, then he will need to work through all the steps (Absolute Past) that led him to that point- (i.e Series 1 and more specifically, Series 2). So the entirety of Series 3 & 4 is a retelling of Series 2, folded in on itself. Why? Because TIME IS NOT LINEAR! For the visual learners (that’s me) this explanation would look something like this:

Its a circle, folded in on itself. Its literally the space-time continuum come to life!! If we want to break it down episode by episode I made table for that! (I’m really getting a lot of use out of Word today)

This is just a short list off the top of my head, so Im sure there is more- feel free to add on! Like John being kidnapped ASiB, TEH, and TFP!  

As I stated before, there will definitely be parallels within every episode to every other episode because time has folded and twisted in on itself in Sherlock’s mind. Its all existing at once. So the parallels in ASiB to TST or in TRF to TFP, are purposeful and a reminder that time is not linear. 

I hope these charts helped explain the theory a little more!

Tagging some people that I think might enjoy it based on their comments on the first part!

@ebaeschnbliah @isitandwonder @longsnowsmoon5 @loveismyrevolution 

Stretching SpaceTime

According to general relativity, the sun’s mass makes an imprint on the fabric of spacetime that keeps the planets in orbit. A neutron star leaves a greater mark. But a black hole is so dense that it creates a pit deep enough to prevent light from escaping.

Image credit: James Provost  

10

How would the Universe change if we grew an extra dimension?

“Imagine what would happen if all-of-a-sudden, the forces binding electrons to nuclei became weaker. If there was a change in how strong that interaction was. You don’t think about it, but at a molecular level, the only thing holding you together is the relatively weak bonds between electrons and nuclei. If you change that force, you change the configurations of everything. Enzymes would denature; proteins would change shape; ligand-gated neurons wouldn’t fit together anymore; DNA wouldn’t encode the molecules it was designed to encode.”

If we take a look at a two-dimensional surface, it’s pretty apparent that we’re pretty omnipotent in comparison. We can draw or erase anything in that dimension, add or remove objects, rearrange their internal structures without leaving them any defense, etc. All of that might lead you to wonder whether there’s the possibility of a fourth spatial dimension out there, and whether that could be part of our Universe? Geometrically, it’s certainly possible. From a historical perspective, there’s no reason a dimension needs to stay the same size over time, either. In 1980, Alan Chodos and Steve Detweiler showed that a Universe that began with four spatial dimensions could have easily evolved into a Universe very much like the one we see today. Building on that, it would be possible for a very small extra dimension to grow large over time. If it did, the consequences would be devastating, but fascinating.

Come find out the full story of what it would mean if the Universe grew an extra dimension!

youtube

Find out how time and space switch roles when we move beyond the event horizon of the black hole.

anonymous asked:

Hello~ Little doubt, its possible for a planet or a system plannet to be near gravitational waves? If yes, how would the plannet (s) would be affected by this?

Hello, yes they can be affected, but they are extremely weak so are very difficult to detect.

The most powerful gravitational waves are created when objects move at very high speeds. Some examples of events that could cause a gravitational wave are:

  • when a star explodes asymmetrically (called a supernova)
  • when two big stars orbit each other
  • when two black holes orbit each other and merge

The (LIGO) Laser Interferometer Gravitational-Wave Observatory and Laser Interferometer Space Antenna (LISA) are examples of observatories and experiments to detect these gravitational waves.

How are gravitational waves detected?

When a gravitational wave passes by Earth, it squeezes and stretches space. LIGO can detect this squeezing and stretching. Each LIGO observatory has two “arms” that are each more than 2 miles (4 kilometers) long. A passing gravitational wave causes the length of the arms to change slightly. The observatory uses lasers, mirrors, and extremely sensitive instruments to detect these tiny changes.

Watch the animation below to see how this works!

Lucky for us here on Earth, while the origins of gravitational waves can be extremely violent, by the time the waves reach the Earth they are millions of times smaller and less disruptive. In fact, by the time gravitational waves from the first detection reached LIGO, the amount of space-time wobbling they generated was thousands of times smaller than the nucleus of an atom!

Read more at:

I hope I was helpfull.

anonymous asked:

Is time travel possible?

Hi, it would appear so, check this out…….

Single particles of light (photons) simulate quantum particles travelling through time were just used by scientists from the University of Queensland, Australia. They showed that one photon can pass through a wormhole and then interact with its older self. The study of closed timelike curves (CTC’s) provides valuable insight into particles that can loop back on themselves, breaking free of linear time. One aspect of general relativity that has long intrigued physicists is the relative ease with which one can find solutions to Einstein’s field equations that contain closed timelike curves (CTCs) causal loops in space–time that return to the same point in space and time.

CTCs are used to simulate powerful gravitational fields, like the ones produced by a spinning black hole, that could theoretically (based on Einstein’s theory of general relativity), warp the fabric of existence so that space-time bends back on itself. This creates a CTC, almost like a pathway to travel back through time. The source of time travel speculation lies in the fact that our best physical theories seem to contain no prohibitions on traveling backward through time. The feat should be possible based on Einstein’s theory of general relativity, which describes gravity as the warping of spacetime by energy and matter. An extremely powerful gravitational field, such as that produced by a spinning black hole, could in principle profoundly warp the fabric of existence so that spacetime bends back on itself. This would create a “closed timelike curve,” or CTC, a loop that could be traversed to travel back in time

More information here and here 

Looking on Light Years
6 x 8 Oil Study

This new study will be up on Every Day Original tomorrow morning (12/21/16) at 11:45 eastern time.

An extraordinarily fascinating aspect of the reality that we live in is that the deeper we look into space, the deeper we are looking back in time! Though awfully fast, light does not move instantaneously. It travels an astonishing 9.461 trillion kilometers in one Earth year. Yet the depths of visible space are so vast that we can see light arriving at earth now that left it’s source 13.8 billion years ago at the beginning of time (red shifted as it may be). All the light arriving from in between there and here is a history of the universe, waiting for us to learn from. We may not be able to change the past, but we can peer deep into it’s chronology.

9

How Big Was The Universe At The Moment Of Its Creation?

“We like to extrapolate our Universe back to a singularity, but inflation takes the need for that completely away. Instead, it replaces it with a period of exponential expansion of indeterminate length to the past, and it comes to an end by giving rise to a hot, dense, expanding state we identify as the start of the Universe we know. We are connected to the last tiny fraction of a second of inflation, somewhere between 10^(-30) and 10^(-35) seconds worth of it. Whenever that time happens to be, where inflation ends and the Big Bang begins, that’s when we need to know the size of the Universe.”

13.8 billion years ago, the Universe as we know it came into existence. Today, the part we can observe is 46 billion light years in radius, having grown tremendously thanks to the expansion of the Universe. But if we extrapolate that backwards, we find that the Universe couldn’t have been infinitely small at the moment of its birth, but rather was a finite size at all finite times. We know an awful lot about the moment the Universe can first be described by the hot Big Bang thanks to the last 50 years of modern cosmology. People used to think the Universe could be contained in a volume no bigger than a marble, or that the part accessible to us could have been the size of the Solar System at birth. No more!

Between the size of a soccer ball and a skyscraper-filled city block is the only range left, and the more we learn about inflation, the smaller that range will get. Find out the science behind it today!

Every time you make a decision, you tear a hole in the fabric of spacetime and enter a new parallel dimension. Not making a decision causes the same to happen. You may have thought that doing this requires a shaman, hallucinogenic drugs, or a time machine (or all three), but actually it stems from free will, is so subtle you never notice it, and happens all the time.