time dilation
description: a difference in the elapsed time measured by two observers due to velocity or gravitational differences between them, as predicted by the theory of relativity.
70 results
Ancestral Night
by Elizabeth Bear · 5 Mar 2019 · 596pp · 163,351 words
realized that I was kicked into the time-buried Koregoi artifact’s senso. It was a peculiar experience, not in the least because gravity and time dilation are essentially the same thing, so I found myself with a mayfly sense of being exposed to a slow and ponderous attention. “Oh my,” I
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a kick-and-catch, grabbing a rail with my afthands and hanging beside him. Peering over his shoulder at his math, to be honest. “Is time dilation going to affect us?” I asked. “The ship is in a white bubble. We’ll be in a bubble too. We don’t have to
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space. But it would take a lot of energy to set up that many buffers.” “This doesn’t tell me how we fall prey to time dilation.” “Even with the white drive, we’re moving through regions of space that are themselves dilated because of relativistic effects. The stuff falling into the
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-time in such a way as to create localized, artificial gravity. What was a little spooky action at a distance to them? The black hole time dilation kept being obvious, and that made me re-realize just how fast the anomaly had to be moving, because . . . well, it was way down in
Machine: A White Space Novel
by Elizabeth Bear · 5 Oct 2020 · 537pp · 146,610 words
stayed a week. It would mean roughly two extra diar going by in the outside galaxy. But over the course of half a millennian, the time dilation added up. The pressure gauge in the inside hatch was more legible. It read .83, and since it maxed out at 1, I guessed that
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with the news that we need them.” Four diar would seem more like three for these ships, traveling as fast as they were. But the time dilation of relativistic speed wasn’t enough to make a real difference in the decision whether to risk ourselves—and the crew of the other ship
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the corpses. If by some mischance I was not dead at that point, I’d have plenty of time to contemplate the slide into nothingness. Time dilation meant that the subjective eternity of falling into a black hole would take long enough that there was no chance I’d be alive to
The Clock Mirage: Our Myth of Measured Time
by Joseph Mazur · 20 Apr 2020 · 283pp · 85,906 words
and quantum mechanics. Space and time were no longer thought of as separate aspects of reality; they were united into a single four-dimensional continuum. Time dilation, inconstancy of mass, and special relativity suggest that motion is indeed illusory. Quantum theory suggests that some motion is not continuous and therefore that time
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thinking about Newton’s baffling mover, even though we now know that it is not absolute and that its measurement submits to the phenomenon of time dilations that depend on relative speeds. We know that the world turns in a measure of time and that all events and motions of the universe
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in chapter 10). Hendrik Lorentz, even with his working out the mathematical equations of length contraction, believed in the ether and believed as well that time dilation was simply a mathematical artifact and thus missed seeing those keys. Space-time was more critical to general relativity than to special relativity, but Einstein
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miles per hour relative to the earth’s surface. He returned home in March 2016. According to Einstein’s theory of special relativity, which predicts time dilation, time for Scott had moved more slowly than time for Scott’s six-minute-older twin brother, Mark (also an astronaut, the husband of former
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endurance. If lengths of telomeres are statistically suggestive of marginal measures of age, Scott was actually getting younger the more he stayed in space! This time dilation seems to defy common sense. While in constant relative motion, each twin appears younger to the other. But Scott ends up younger because the symmetry
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. Surprisingly, accelerations of clocks relative to rest have no effect on time. The velocity of the moving clock is key. As velocity changes so does time dilation, but that dilation is dependent only on velocity.4 According to an earth-bound observer’s measurements, an astronaut’s length shrinks while she’s
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internal clock is speeded up to accelerate heart and lung action, slow digestion, and release and dedicate all metabolic energy sources for muscular action. This time dilation conforms with, and is supported by, the physiological reaction to threat—bodily changes to fear, pain, hunger, and rage.2 A great deal of scientific
Extraterrestrial Civilizations
by Isaac Asimov · 2 Jan 1979 · 330pp · 99,226 words
Visits 11 · Space Exploration The Next Targets Space Settlements Space Mariners Stepping Stone 12 · Interstellar Flight The Speed of Light Beyond the Speed of Light Time Dilatation Coasting Worlds Adrift 13 · Messages Sending Receiving Photons Microwaves Where? Why? CHAPTER 1 The Earth The question is: Are we alone? Are human beings the
The Rise of Superman: Decoding the Science of Ultimate Human Performance
by Steven Kotler · 4 Mar 2014 · 330pp · 88,445 words
he later recounted: “I heard a dull thud and my fall was over.” Heim survived the impact, but the mystery never left him. Panoramic vision? Time dilation? Heavenly music? None of this made any sense. He was a scientist by training, a geologist who would go on to do fundamental work on
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fall in line, fall in place. It makes everything else tolerable.” In his words, we hear plenty of familiar echoes. Just like Heim, Hamilton experienced time dilation. Just like Danny Way, he vanished into the moment. The same intrinsic motivation that fascinated Maslow shows up, as does Csikszentmihalyi’s meaning-of-life
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it was all happening so slowly, I could process all that information and make the right decisions.” The technical name for Potter’s experience is “time dilation.” Normally, in the zone, after self-awareness starts to fade, temporal awareness tends to follow. In Flow, Csikszentmihalyi explains further: “One of the most common
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timescales and epic beauty, reality pauses, if only for a moment. And in this moment, we taste the pinpoint focus, loss of self-consciousness, and time dilation that are deep zone companions. Action and adventure athletes taste these experiences so often because nature is jam-packed with novelty, unpredictability, and complexity. Rivers
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. This solidarity is useful. People feel different on the other side of flow: stronger, more confident, more capable. Yet the surreal nature of the experience—time dilation, vanishing of self—can make the transformation difficult to trust. If you don’t believe you’re really capable of doing what you just did
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fMRI that helped Greg Berns map the dopamine system’s relationship to flow triggers like risk and novelty. At Baylor, it was David Eagleman and time dilation. And this list goes on. Neural feedback—the use of EEG to train performance—has undergone a similar transformation. Dr. Leslie Sherlin and his colleagues
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About Near-Death Experiences, Psychic Communication and Touching the Beyond (Penguin, 2008). Also, for a very cool discussion about the enhanced perception that comes with time dilation, see Nobuhiro Hagura, Ryota Kanai, Guido Orgs, and Patrick Haggard, “Ready Steady Slow: Action Preparation Slows the Subjective Passage of Time,” Proceedings of the Royal
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traditional versus extreme, xiv, 99 awareness for decision making, 34 deep embodiment, 105–6 as flow component, 30, 31 self-, 49–51, 119 situational, 72 time dilation and, 54 See also consciousness Baker, Mount, xvi Bannister, Roger, 174 BASE jumping by Baumgartner, 187–91 Cellar of Swallows, 52–54 death by, 142
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, Mandy-Rae, 109, 111–12 Csikszentmihalyi, Mihaly, 17–18, 19–22, 30–31 decision making studies by, 33–34 group flow studies by, 130–32 time dilation studies by, 54 culture. See society Curren, Pat, 24 Cusson, JF, xvi Daisher, Miles, 117, 140–43 Daley, Harry, 136 danger. See risk taking D
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, 66, 195 risk-triggered, 11–12, 101–3 serotonin and, 67, 211 societal potential for, 192–93 strength in, 50–51 technology-triggered, 98–99 time dilation and, 9–10, 30, 53–54, 98 training for, 62, 69, 72, 106 triggers external, 100–106 internal, 112–18 triggers for group, 133–35
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of risk taking, 101–2, 215 of self-awareness, 49–50 of self-monitoring and doubt, 50 of strength, 50–51 of struggle, 120 of time dilation, 54 Neurotopia, 35 Newberg, Andrew, 55–57 nitric oxide, 71–72 Noll, Greg, 129 norepinephrine, 67, 101–2, 210 novelty, 104, 105 Numi, Paavo, 174
Big Bang
by Simon Singh · 1 Jan 2004 · 492pp · 149,259 words
’s mathematical formula described exactly how any observer would genuinely perceive time to slow down when looking at a moving clock, a phenomenon known as time dilation. This seems so utterly perverse that it raises four immediate questions: 1. Why don’t we ever notice this peculiar effect? The extent of the
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on the speed of the clock or object in question compared with the speed of light. In the above example the time dilation is significant because Alice’s carriage is travelling at 80% of the speed of light, which is 240,000,000 m/s. However, if the
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perception of time would be just one part in a trillion. In other words, it is impossible for humans to detect the everyday effects of time dilation. 2. Is this difference in time real? Yes, it is very real. There are numerous pieces of sophisticated hi-tech gadgetry that have to take
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into account time dilation in order to work properly. The Global Positioning System (GPS), which relies on satellites to pinpoint locations for devices such as car navigation systems, can
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by; she would blink and think more slowly, and even her heartbeat would slow down. Everything would be similarly affected by the same degree of time dilation. 4. Why can’t Alice use the slowing of her clock and her own movements to prove that she is moving? All the peculiar effects
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normal, because neither her clock nor anything else in her carriage is moving relative to herself. Zero relative motion means zero time dilation. We should not be surprised that there is no time dilation, because if Alice noticed any change in her immediate surroundings as a result of her carriage’s motion, it would
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, if Alice looked at Bob as she whizzed past him, it would appear to her that it was Bob and his environment that was undergoing time dilation, because he is moving relative to her. The special theory of relativity impacts on other aspects of physics in equally staggering ways. Einstein showed that
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[relativity] should prove to be correct, as I expect it will, he will be considered the Copernicus of the twentieth century.’ Einstein’s predictions of time dilation and length contraction were all confirmed by experiments in due course. His special theory of relativity alone would have been enough to make him one
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the speed of light was just a few kilometres per hour, so that a bicycle ride would reveal the weird effects of relativity, such as time dilation and length contraction. Unfortunately, some rivals viewed this approach to popularisation as childish and trivial. Alpher summarised their predicament: ‘Because he wrote on physics and
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361 Thomson, J. J. 142,289,289, 292, 296 time 87, 120, 176,337,472,490; sidereal day 405; and special relativity 109—12, 111; time dilation 113-14,115 timescale difficulty 372-80,385 tired light theory 279-80 Townes, Charles 424 Turkevich, Anthony 327 Turner, Herbert 229 Twain, Mark 126
Project Hail Mary
by Andy Weir · 15 May 2021 · 576pp · 150,183 words
time it took. Or, rather, I have no idea how much time I experienced. When you get going near the speed of light, you experience time dilation. More time will have gone by on Earth than I have experienced since I left Earth. Relativity is weird. Time is of the essence here
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in less than ten years from Erid’s point of view. He must mean 6.64 years of time experienced by his ship thanks to time dilation. “Strange things happen on trip. Crew sick. Die.” His voice lowers. “Now I know was radiation.” I look down and give him a moment. “Everyone
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all out by assuming they could just accelerate faster and faster and the speed of light wasn’t an issue. They don’t know about time dilation. Rocky doesn’t realize that Erid experienced a whole bunch more time than he did on that trip. They don’t know about length dilation
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the maximum sustained g-force a human should be exposed to for almost four years. Earth experienced something like thirteen years during that time, but time dilation worked in our favor for the crew. If I do the long trip home with just 1.33 million kilograms of fuel (which is all
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remaining tanks can hold), the most efficient course is a constant acceleration of 0.9 g’s. I’d be going slower, which means less time dilation, which means I experience more time. All told, I’ll experience five and a half years on that trip. So what? It’s only an
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the times for me to turn around and the times for me to reach Erid, question? They are so soon. So fast.” “Yeah, that’s time dilation for you. Weird stuff. But those are the correct values. I checked them four times. You’ll reach Erid in under three Earth years.” “But
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grab dinner with other faculty and staff at the school. I’d have the occasional Saturday-night beer with old college friends. But thanks to time dilation, when I get home all those folks will be a generation older than me. I liked Dimitri. He was probably my favorite of the whole
The Greatest Story Ever Told--So Far
by Lawrence M. Krauss · 21 Mar 2017 · 335pp · 95,280 words
in the galaxy to power a single such voyage, at least using conventional rockets of the type now in use. Nevertheless, science fiction woes aside, “time dilation”—as the relativistic slowing of clocks is called with regard to moving objects—is very much real, and very much experienced every day here on
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99.9999 percent of the speed of light and rely on the effects of relativity when exploring what happens. But even closer to home, relativistic time dilation has an impact. We on Earth are all bombarded every day by cosmic rays from space. If you had a Geiger counter and stood out
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unstable, with a lifetime of about one-millionth of a second, and decay into electrons (and my favorite particles, neutrinos). If it weren’t for time dilation, we would never detect these muon cosmic rays on Earth. Because a muon traveling at close to the speed of light for a millionth of
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(Gell-Mann), 193–94 Einstein, Albert, 4, 42, 49–68 background of, 46 Bose-Einstein condensation research by, 185–86 clocks relative to moving objects (time dilation) research of, 58–61 creativity and intellectual confidence of, 52 Dirac described by, 91 Galileo-Maxwell paradox resolution by, 49–54, 58, 64–65 General
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of, 132 decay of, 61, 152, 160, 162, 179 Higgs condensate and, 217 Higgs particles and, 254 quark families with, 247 symmetry pairing of, 234 time dilation in detection of, 61 tracking of, 223–24 N Nambu, Yoichiro background of, 188 quarks and, 233 skepticism about ideas of, 202 superconductivity research of
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human bodies with, 113, 120 types of rays in, 119–20 in uranium, 119 relativity antiparticles and, 97, 100, 102 clocks relative to moving objects (time dilation) research on, 58–61 Dirac’s research on quantum mechanics and, 92, 95, 151 impact of Einstein’s discovery of, 95 Minkowski’s four-dimensional
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, 203–4 Sommerfeld, Arnold, 85, 134 Special Theory of Relativity (Einstein), 68, 80 speed of light Einstein’s research on clocks relative to moving objects (time dilation) and, 58–61 Fizeau’s formula for, 42 shared reality and, 56 Standard Model creation and verification of, 245, 249 Higgs field and, 271 Higgs
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mesons, 154 theta particles, 157, 158 ’t Hooft, Gerardus, 204, 220–21, 222, 223, 237 background of, 220–21 thorium, in nuclear decay experiments, 128 time dilation Einstein’s research on clocks relative to moving objects and, 58–61 muon cosmic ray detection and, 61 Tomonaga, Sin-Itiro, 99, 142 top quarks
Schismatrix Plus
by Bruce Sterling · 1 Jan 1995 · 533pp · 145,887 words
I would not die, that I would fall forever backward into the unknown, my mind shriveling into a single frozen spore of isolation and terror. Time dilated. Eons of silent fear telescoped into a few heartbeats and I saw before me a single white blob of light, like a rent from this
Galactic North
by Alastair Reynolds · 14 Feb 2006 · 436pp · 124,373 words
it to another system. Even if the engines kept working as they were now, we’d take far too long to reach relativistic speed, where time dilation became appreciable. At twenty-five per cent of the speed of light, what would have been a twenty-year hop before became an eighty-year
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system. They were refugees from the Melding Plague, seeking sanctuary in the future. At the nearlight speeds this vessel attained between suns, large levels of time dilation would be experienced. Our clocks would grind to an imperceptible crawl. After thirty or forty years of shiptime, a mere six or seven hops between
From eternity to here: the quest for the ultimate theory of time
by Sean M. Carroll · 15 Jan 2010 · 634pp · 185,116 words
Accessory to War: The Unspoken Alliance Between Astrophysics and the Military
by Neil Degrasse Tyson and Avis Lang · 10 Sep 2018 · 745pp · 207,187 words
Upgrade
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Fluke: Chance, Chaos, and Why Everything We Do Matters
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Between the Strokes of Night
by Charles Sheffield · 28 Apr 2013 · 351pp · 111,121 words
Alpha Trader
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Coming of Age in the Milky Way
by Timothy Ferris · 30 Jun 1988 · 661pp · 169,298 words
Why We Sleep: Unlocking the Power of Sleep and Dreams
by Matthew Walker · 2 Oct 2017 · 442pp · 127,300 words
Nine Pints: A Journey Through the Money, Medicine, and Mysteries of Blood
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Test Gods: Virgin Galactic and the Making of a Modern Astronaut
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Places of the Heart: The Psychogeography of Everyday Life
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When Breath Becomes Air
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Neutrino Hunters: The Thrilling Chase for a Ghostly Particle to Unlock the Secrets of the Universe
by Ray Jayawardhana · 10 Dec 2013 · 203pp · 63,257 words
Einstein's Dice and Schrödinger's Cat: How Two Great Minds Battled Quantum Randomness to Create a Unified Theory of Physics
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House of Suns
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The Dream of the Iron Dragon
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Just Here Trying to Save a Few Lives: Tales of Life and Death From the ER
by Pamela Grim · 1 Jan 2000 · 349pp · 101,538 words
The World According to Physics
by Jim Al-Khalili · 10 Mar 2020 · 198pp · 57,703 words
Cosmos
by Carl Sagan · 1 Jan 1980 · 404pp · 131,034 words
Stars in My Pocket Like Grains of Sand
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The Fabric of Reality
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Collider
by Paul Halpern · 3 Aug 2009 · 279pp · 75,527 words
Alive
by Gabriel Weston · 15 Aug 2025 · 177pp · 59,831 words
Efficiently Inefficient: How Smart Money Invests and Market Prices Are Determined
by Lasse Heje Pedersen · 12 Apr 2015 · 504pp · 139,137 words
Exoplanets: Hidden Worlds and the Quest for Extraterrestrial Life
by Donald Goldsmith · 9 Sep 2018 · 265pp · 76,875 words
The Year's Best Science Fiction: Twenty-Sixth Annual Collection
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City Parks
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Slowdown: The End of the Great Acceleration―and Why It’s Good for the Planet, the Economy, and Our Lives
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To Sleep in a Sea of Stars
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Pale Blue Dot: A Vision of the Human Future in Space
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Revelation Space
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How to Invent Everything: A Survival Guide for the Stranded Time Traveler
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Paradox: The Nine Greatest Enigmas in Physics
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E=mc2: A Biography of the World's Most Famous Equation
by David Bodanis · 25 May 2009 · 349pp · 27,507 words
Gateway
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The Simulation Hypothesis
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The Word for World Is Forest
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Surfaces and Essences
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Generation Kill
by Evan Wright · 19 May 2004 · 392pp · 122,282 words
The Fabric of the Cosmos
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Inviting Disaster
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Pathfinders: The Golden Age of Arabic Science
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Ringworld
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Forever Free
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Superintelligence: Paths, Dangers, Strategies
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Ender's shadow
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Look To Windward
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Six Not-So-Easy Pieces: Einstein’s Relativity, Symmetry, and Space-Time
by Richard P. Feynman, Robert B. Leighton and Matthew Sands · 22 Mar 2011 · 182pp · 51,816 words
Quarantine
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The Snow Queen
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The Case for Space: How the Revolution in Spaceflight Opens Up a Future of Limitless Possibility
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Wonders of the Universe
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Scale: The Universal Laws of Growth, Innovation, Sustainability, and the Pace of Life in Organisms, Cities, Economies, and Companies
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Time Travel: A History
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For the Win
by Cory Doctorow · 11 May 2010 · 624pp · 180,416 words
Investing Amid Low Expected Returns: Making the Most When Markets Offer the Least
by Antti Ilmanen · 24 Feb 2022