Time Travel, Teleportation & Science
Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space, generally using a theoretical invention, namely a time machine. It has a commonly recognized place in philosophy and fiction, but has a very limited application in real world physics, such as in quantum mechanics or wormholes.
Although the 1895 novel The Time Machine by H. G. Wells was instrumental in moving the concept of time travel to the forefront of the public imagination, The Clock That Went Backward by Edward Page Mitchell was published in 1881 and involves a clock that allowed three men to travel backwards in time.[1][2] Non-technological forms of time travel had appeared in a number of earlier stories such as Charles Dickens' A Christmas Carol. Historically, the concept dates back to the early mythologies of Hinduism (such as the Mahabharata), Buddhism, and Islam through ancient folk tales. More recently, with advancing technology and a greater scientific understanding of the universe, the plausibility of time travel has been explored in greater detail by science fiction writers, philosophers, and physicists.
Teleportation, or Teletransportation, is the theoretical transfer of matter or energy from one point to another without traversing the physical space between them. It has a commonly recognized place in science fiction literature, film, and television, but as yet has a very limited application in real world physics, such as quantum teleportation or the study of wormholes.
Science (from Latin scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. In an older and closely related meaning, "science" also refers to a body of knowledge itself, of the type that can be rationally explained and reliably applied. A practitioner of science is known as a scientist.
In modern usage, "science" most often refers to a way of pursuing knowledge, not only the knowledge itself. It is also often restricted to those branches of study that seek to explain the phenomena of the material universe.
Source : Wikipedia
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Your Daily Equation | Episode 02: Time Dilation
Added 445 Views / 0 LikesEpisode 02: Brian talks time travel. Not the kind of time travel you encounter in sci-fi, but real time travel – the kind that's written into the laws of physics and understood using the time dilation equation. Watch to learn more about how and why our pe
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Your Daily Equation | Episode 03: Lorentz Contraction
Added 383 Views / 0 LikesEpisode 03: Last week, Brian spoke about time dilation and the impact of motion on the passage of time. Today, as the counterpart to time dilation, Brian will unpack length contraction or what is also known as the Lorentz contraction. If you want to hear
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Your Daily Equation | Episode 04: Relativity of Simultaneity
Added 397 Views / 0 LikesEpisode 04 #YourDailyEquation: Today's equation shows that simultaneity is in the eye of the beholder. Two people who are moving relative to one another will not agree on what happens at the same time, and Brian derives the time discrepancy between them.
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Your Daily Equation | Episode 05: 1=.9999...
Added 457 Views / 0 LikesToday Brian gives a bite-sized daily equation--a simple formula that makes you think twice.Monday - Friday at 3pm EDT, Brian will offer brief and breezy discussions of pivotal equations. Even if your math is a bit rusty, tune in for accessible and excitin
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Your Daily Equation | Episode 06: Relativistic Mass
Added 425 Views / 0 LikesEpisode 06 #YourDailyEquation: Why is the speed of light the fastest possible speed? In this episode, Brian tells a simple story--involving medieval jousters--to motivate the relativistic mass equation, and then uses that equation to explain the speed lim
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Your Daily Equation | Episode 07: Relativistic Velocity Combination
Added 337 Views / 0 LikesIf you race away from a beam of light, why doesn't the light approach you slower than the speed of light? If you race toward it, why doesn't the light approach you faster than the speed of light. In today's Daily Equation, Brian describes the relativistic
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Your Daily Equation | Episode 08: Photoelectric Effect
Added 447 Views / 0 LikesEpisode 08 #YourDailyEquation: Einstein won the Nobel Prize for explaining a puzzle to do with light and electrons known as the photoelectric effect. In today's Your Daily Equation, Brian discussed the key formula in this explanation, an insight that help
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Your Daily Equation | Episode 09: De Broglie Wavelength
Added 419 Views / 0 LikesEpisode 09 #YourDailyEquation: Particles and waves collide in quantum physics. In today's episode of Your Daily Equation, Brian discusses the famous double slit experiment and explains the formula that connects particles and waves: the DeBroglie wavelengt
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Your Daily Equation | Episode 10: Quantum Physics and Probability
Added 385 Views / 0 LikesEpisode 10 #YourDailyEquation: The revolutionary new idea of quantum mechanics is that reality evolves through a game of chance described by probabilities. In today's episode of Your Daily Equation, Brian explains the origin of this iconic quality and des
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Your Daily Equation | Episode 11: Euler Identity or The Most Beautiful of all Equations
Added 298 Views / 0 LikesEpisode 11 #YourDailyEquation: Euler's Identity is widely viewed as the most beautiful of all mathematical equations, combining a handful of disparate fundamental quantities into a single mathematical formula. In this episode of Your Daily Equation, Brian
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Your Daily Equation | Episode 12: The Schrödinger Equation--the Core of Quantum Mechanics
Added 451 Views / 0 LikesEpisode 12 #YourDailyEquation: At the core of Quantum Mechanics -- the most precise theory ever developed -- is Schrödinger's Equation. In this episode of Your Daily Equation, Brian explains where the equation comes from and how it is used.Monday - Friday
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Your Daily Equation | Episode 13: Generalized Schrödinger Equation
Added 474 Views / 0 LikesEpisode 13 #YourDailyEquation: Where do quantum waves do their waving? For a single particle, our three dimensional space provides a natural answer. But what if we consider more than one particle? In this episode of Your Daily Equation, this question take
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Your Daily Equation | Episode 14: Quantum Entanglement or Einstein's Spooky Action
Added 446 Views / 0 LikesEpisode 14 #YourDailyEquation: Quantum entanglement is the strangest quality of quantum reality. Einstein called it "spooky," because, well, it is. Join Brian to explore the basic ideas visually and then take a look at the essential equations.We’d love to
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Your Daily Equation | Episode 15: The Planck Length - Why String Theory is Hard to Test
Added 420 Views / 0 LikesEpisode 15 #YourDailyEquation: The Planck scale is often described as the arena in which both quantum mechanical and gravitational effects come into play. The Planck length is tiny (compared to the sizes of everyday things) and the Planck mass is huge (co
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Your Daily Equation | Episode 16: Fourier Series -- The "atoms" of Math
Added 352 Views / 0 LikesEpisode 16 #YourDailyEquation: Much as matter, however complicated, can be decomposed into combinations of atoms, mathematical functions, however complicated, can be decomposed into combinations of simpler functions--sines and cosines. In this episode of
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Your Daily Equation | Episode 17: Planetary Orbits: Kepler, Newton, and Gravity
Added 352 Views / 0 LikesEpisode 17 #YourDailyEquation: Newton's law of gravitation determines the trajectories of the planets and explains the patterns in their motion found by Kepler. In this episode, Brian explains the basics of planetary orbits, while also giving a nod to con
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Your Daily Equation | Episode 18: Heisenberg's Uncertainty Principle
Added 359 Views / 0 LikesEpisode 18 #YourDailyEquation:We’d love to see & hear your questions for future Q&As with Brian Greene. Send us a video (less than 20 seconds please!) of yourself asking your question to: questions@worldsciencefestival.comMonday - Friday at 3pm EDT, Brian
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Your Daily Equation | Episode 19: Euler-Lagrange Equations: The Least Action Principle
Added 389 Views / 0 LikesEpisode 19 #YourDailyEquation: We’d love to see & hear your questions for future Q&As with Brian Greene. Send us a video (less than 20 seconds please!) of yourself asking your question to: questions@worldsciencefestival.comMonday - Friday at 3pm EDT, Bria
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Your Daily Equation | Live Q&A with Brian Greene
Added 468 Views / 0 LikesLive Q&A with Brian Greene - #YourDailyEquation: Join a live session with Brian Greene, 3 PM EDT. Relativity, quantum, the universe -- ask him anything that's on your mind.Monday - Friday at 3pm EDT, Brian will offer brief and breezy discussions of pivota
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Your Daily Equation | Live Q&A with Brian Greene
Added 415 Views / 0 LikesLive Q&A with Brian Greene - #YourDailyEquation: Join a live session with Brian Greene, 3 PM EDT. Relativity, quantum, the universe -- ask him anything that's on your mind.Monday - Friday at 3pm EDT, Brian will offer brief and breezy discussions of pivota