Facing a power wall and the limit of physics, chip makers are in a constant battle to reengineer and re-evaluate ways to build a better CPU.
Category: physics – Page 95
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It’s said that the clock is always ticking, but there’s a chance that it isn’t. The theory of “presentism” states that the current moment is the only thing that’s real, while “eternalism” is the belief that all existence in time is equally real. Find out if the future is really out there and predictable—just don’t tell us who wins the big game next year.
This video is episode two from the series “Mysteries of Modern Physics: Time”, Presented by Sean Carroll.
Learn more about the physics of time at https://www.wondrium.com/YouTube.
00:00 Science and Philosophy Combine When Studying Time.
2:30 Experiments Prove Continuity of Time.
6:47 Time Is Somewhat Predictable.
8:10 Why We Think of Time Differently.
8:49 Our Perception of Time Leads to Spacetime.
11:54 We Dissect Presentism vs Eternalism.
15:43 Memories and Items From the Past Make it More Real.
17:47 Galileo Discovers Pendulum Speeds Are Identical.
25:00 Thought Experiment: “What if Time Stopped?”
29:07 Time Connects Us With the Outside World.
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Published 12 August 2020 • © 2020 The Author(s). Published by IOP Publishing Ltd Journal of Physics: Photonics, Volume 2, Number 4 Focus on Photonics for Neural Information Processing Citation Matěj Hejda et al 2020 J. Phys. Photonics 2 044001 DOI 10.1088/2515–7647/aba670
The science of predicting chaotic systems lies at the intriguing intersection of physics and computer science. This field delves into understanding and forecasting the unpredictable nature of systems where small initial changes can lead to significantly divergent outcomes. It’s a realm where the butterfly effect reigns supreme, challenging the traditional notions of predictability and order.
Central to the challenge in this domain is the unpredictability inherent in chaotic systems. Forecasting these systems is complex due to their sensitive dependence on initial conditions, making long-term predictions highly challenging. Researchers strive to find methods that can accurately anticipate the future states of such systems despite the inherent unpredictability.
Prior approaches in chaotic system prediction have largely centered around domain-specific and physics-based models. These models, informed by an understanding of the underlying physical processes, have been the traditional tools for tackling the complexities of chaotic systems. However, their effectiveness is often limited by the intricate nature of the systems they attempt to predict.
A study published today (Dec. 15) in the journal Astronomy & Astrophysics reveals the discovery of two new planetary systems orbiting stars similar to our sun, also known as solar analogs.
The study was led by Dr. Eder Martioli, a full researcher at the Laboratório Nacional de Astrofísica (LNA/MCTI) and an associate researcher at the Institut d’astrophysique de Paris (IAP), and by Dr. Guillaume Hébrard, a researcher at the Institut d’astrophysique de Paris (IAP).
Observations responsible for detecting these two systems, named TOI-1736 and TOI-2141, were conducted using NASA’s TESS space telescope and the SOPHIE spectrograph installed on the 1.93 m telescope at the Observatoire de Haute-Provence (OHP) in southern France, both illustrated in Figure 1.
What Happens Inside a Proton?
Posted in cosmology, media & arts, physics
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If we ever want to simulate a universe, we should probably learn to simulate even a single atomic nucleus. But it’s taken some of the most incredible ingenuity of the past half-century to figure out how that out. All so that today I can teach you how to simulate a very very small universe.
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Black holes are some of the most powerful objects in the universe — and humans could devise ways to harness that power as an energy source, a new theoretical study claims.