Theory of Time travel

Temporal Mechanics Primer

Space-Time, Entropy, and the Arrow of Time

In 1905, Albert Einstein proposed a theory that unified mass, energy, motion through space, the relativity of time, and formed a new mathematical concept called spacetime. All objects in the universe move through spacial dimensions while time passes, but the rate at which time passes is relative to the velocity that you are traveling. We humans experience three dimensions on a daily basis (our frame of reference), and within our frame of reference, time "flows" at a rate of 1 second per second. Observers from a different frame of reference will see our frame moving faster or slower than theirs, but they will still measure time in their frame at 1 second per second.

Some physicists have hypothesized that the reason time "flows" is because of a property of matter called entropy defined in the Second Law of Thermodynamics. Entropy is the measurement of how energy will disperse in a given system, such that energy will always move from a higher state to a lower equilibrium state. It is proposed that the entire universe is "unwinding" from its initial high energy state (the "Big Bang") creating the dimension of "time" as the universe expands.

In physics, the mathematics behind the known laws of space-time are symmetric; in other words, the formulas are the same for an object moving forward in the time as an object moving backwards in time. Knowing an object's current position and velocity lets you determine where an object was (backwards in time) and where an object is going (forwards in time).

However, we humans do not perceive time flowing in both directions. For us, the arrow of time points "forward". We have a memory of where we have been, but no perception of what we are going to do; we can only perceive the probability of events that will occur as derived from our current conditions.

Cause and Effect

In the direction of forward flowing time, an action (cause) will have a predictable outcome (effect) according to the laws of physics, where the cause always precedes effect.

Paradox

If alteration of a sequence of events (via time travel) were to occur where an effect no longer had a cause, the situation would result in a paradox. Perhaps the most common thought experiment is the grandfather paradox, where a time traveler goes back in time and inadvertently causes the death of his own grandfather (effect) before his father's birth. If his father were never born, then the traveler himself would never be born, and thus he could never go back in time, and thus never cause the death of his grandparent. If the grandfather is not dead, then he has a child, who has a child who becomes the time traveler, and the cycle loops.

The results of encountering a paradox are unknown. Science fiction writers envision temporal paradoxes having catastrophic effects, ranging from violent explosions to "winking out of existence".

Principle of Self-Consistency

It is assumed that if time-travel were possible in the future, then statistically someone is traveling into their past (our present) with the intent to change it, yet somehow, paradoxes are not being observed (in the present). The Principle of Self-Consistency states that the probability of events that result in a paradox is zero.

This essentially states that logical paradoxes that result from time traveling are self-correcting, such that a time traveler cannot alter history in such a way that would be inconsistent with the reasons for time traveling in the first place. Either the traveler is prevented from making their intended change to the past through an unexpected sequence of events, or any change made to the past was always meant to happen and is incorporated in the history of the time traveler.

The self-consistency principle is often controversial due to the implications that the time traveler has no free will while traveling in the past, yet does have free will when in the present and future.

Mechanics of Time Travel

Fixed Time Theory

In a universe with a single timeline, all events that occur at every point in history (past, present and future) must not only be self-consistent, but immutable. A time traveler moving in the past is simply acting out a role; they cannot change anything that would alter the chain of events that eventually lead to their decision to go back in time. Every action that occurs was predestined to occur.

Multiple Universe Theory

The Multiple Universe theory allows that every probable outcome of any event spawns a new universe with its own timeline, and that a time traveler simply moves up and down the timelines, taking different branches along the way. A time traveler moves from the present back in time to undo a great injustice. They succeed and return to the present, however, are they really returning to "their" present?

Multiverser Theory

Contrary to the Fixed Time Theory, the Multiverser theory states that the universe's timeline acts more like a record head on a VCR; jumping forward in time allows all events in the universe to play out as if the traveler were not there, and jumping backwards "overwrites" any events that occurred in between. The theory allows for free will in every timeline, and multiple timeline rewrites are allowed to occur, but all events in every timeline adjustment must be causally self-consistent or a "time loop" will occur.

from Herowiki

Wall-E = Apple

• When WALL-E is fully charged by the sun, he makes the same "boot up" sound that most of Apple's Macintosh computers have made since circa 1996.
• WALL-E watches his favorite movie every night on the screen of an iPod
• The villainous Autopilot's voice is provided by Apple's text-to-speech system, MacinTalk
• EVE's sleek design as an evolution of WALL-E's parallels the sleek iMac design having evolved from the boxy, beige Apple IIe.
• Steve Jobs, Founder, Chairman and CEO of Apple Computer, was CEO of Pixar until its acquisition by Disney in 2005, and as a shareholder and member of the Disney Board of Directors is still actively involved with the company.

Nibiru

In recent years, the work of Zecharia Sitchin has garnered much attention among ufologists, ancient astronaut theorists and conspiracy theorists. He claims to have uncovered, through his own retranslations of Sumerian texts, evidence that the human race was visited by a group of extraterrestrials from a distant planet in our own Solar System. Part of his theory lies in an astronomical interpretation of the Babylonian creation myth, the Enuma Elish, in which he replaces the names of gods with hypothetical planets. However, since the principal evidence for Sitchin's claims lies in his own personally derived etymologies and not on any scholarly agreed interpretations (including scholars among the Sumerians themselves), his theories remain at most pseudoscience to the vast majority, if not the totality, of academics.

^[1]

Sitchin's theory proposes the planets Tiamat and Nibiru. Tiamat supposedly existed between Mars and Jupiter. He postulated that it was a thriving world in a much differently shaped solar system, with jungles and oceans, whose orbit was disrupted by the arrival of a large planet or very small star (less than twenty times the size of Jupiter) which passed through the solar system between 65 million and four billion years ago. The new orbits caused Tiamat to collide with one of the moons of this object, which is known as Nibiru. The debris from this collision are thought by the theory's proponents to have variously formed the asteroid belt, the moon, and the current incarnation of the planet Earth.

Beginning in 1995, websites such as ZetaTalk have identified Nibiru or "Planet X" as a large brown dwarf currently within our planetary system, soon to pass relatively close to Earth. Sitchin disagrees with the timing of passage.^[2]

To the Babylonians, Nibiru was the celestial body or region sometimes associated with the god Marduk. The word is Akkadian and the meaning is uncertain. Because of this, the hypothetical planet Nibiru is sometimes also referred to as Marduk. Sitchin hypothesizes it as a planet in a highly elliptic orbit around the Sun, with a perihelion passage some 3,600 years ago and assumed orbital period of about 3,750 years; he also claims it was the home of a technologically advanced human-like alien race, the Anunnaki, who visited Earth in search of gold.

Taken from Wikipedia

Kesalahan ketika Pake HP

Meskipun teknologi memudahkan aktifitas manusia, namun WHO menyimpulkan penggunaan ponsel secara terus menerus selama 5-18 tahun atau lebih, dapat menimbulkan resiko lebih tinggi terkena serangan kanker darah (leukemia) atau kanker pankreas. Seorang yang sering terkena radiasi ponsel, cepat atau lambat, dapat mengalami efek detrimental pada otak

Riset medis di Amerika Serikat menunjukan, laki - laki yang menggunakan ponsel lebih dari 4 jam sehari mengalami penurunan jumlah sel mani sebesar 40 % dibanding laku - laki yang pemakaian ponsel nya lebih rendah. Ada 6 faktor perilaku yang ternyata secara medis berpengaruh kepada si pengguna ponsel :

Mengantungkan ponsel di leher atau pinggang

Hal ini memang sudah menjadi kebiasaan yang dilakukan oleh kebanyakan orang karena terasa lebih praktis. Namun fakta medis berbicara lain. Menyimpan ponsel di sekitar area leher berbahaya bagi penderita arrhythmia atau gangguan irama jantung. Fungsi jantung menjadi tidak sempurna akibat pengaruh radiasi dari ponsel yang menggantung di sekitar dada.

Solusi : Simpan ponsel di dalam tas, dompet atau sarung dengan cara di genggam, bukan diikat pada pinggang atau digantungkan di leher.

Langsung menempelkan ponsel di telinga ketika hubungan belum tersambung

Umumnya, begitu memencet nomor yang ingin dituju, pengguna langsung menempelkan ponsel di telinga untuk mendengarkan apakah ada nada sambung. Padahal percakapan belum dimulai sedetikpun.

Solusi : ketika hubungan telepon belum tersambung, radiasi akan bertambah kuat. Beri selang beberapa waktu, sekitar 5 detik untuk kemudian mendengarkan apakah sudah tersambung.

Menempelkan ponsel ditelinga ketika menelpon

Kelemahan suara yang dihasilkan sebuah ponsel bisa jadi alasan kenapa banyak orang yang tidak memberi jarak antara telinga dan ponsel yang akan digunakan.

Solusi : Memberi jarak antara telinga dan ponsel kamu, Pilih operator dan ponsel yang mampu memberikan jaringan dan sinyal yang baik.

Melakukan percakapan terlalu lama

Tarif murah yang diberikan operator seperti memberi jalan Tol bagi user untuk tak bosan bicara ber jam - jam. Padahal jika ponsel mulai terasa panas, kamu tahu bahwa ada sesuatu yang tidak beres.

Solusi : Gunakan handsfree untuk mengurangi radiasi. Jika harus terpaksa menelpon dalam jangka waktu lama, letakan ponsel secara bergantian di kiri dan kanan telinga setiap 1-2 menit.

Bicara sambil mojok di sudut tembok, dan berbisisk - bisik saat menerima telepon

Menelpon dengan bersembunyi disudut ruangan lebih membahayakan kesehatan. Dalam kondisi umum, penutupan sinyal sudut ruangan dapat menyebabkan daya radiasi ponsel pada sudut tertentu bertambah besar.

Solusi : Usahakan untuk mencari ruangan terbuka untuk berkomunikasi via ponsel. Jangan menggunakan ponsel untuk bergosip

Menelpon sambil mondar - mandir

Tanpa kita sadari, sejumlah orang suka berjalan - jalan ketika menelpon. Padahal menggerakan ponsel ketika menelpon menyebabkan ketidak stabilan sinyal yang diterima. Kalau sudah begitu, terjadi perubahan daya tinggi dalam waktu singkat yang tidak diperlukan.

Solusi : Cari posisi yang nyaman. Berhenti dan diam ketika menelpon, karena menelpon hanya membutuhkan suara dan ponsel sebagai perantaranya. Membuat kebiasaan baru : tidak menjadi orang yang terlalu sibuk untuk sekedar bertelepon. Tidak menerima telepon sama sekali jika anda sedang melakukan perjalanan (pergerakan)

Take from anonymous source