The physics of blood spatter – Physics World
WEBTaken from the October 2019 issue of Physics World. Analysing the blood stains following a shooting can be key to finding the perpetrator, but it’s a field of forensics that is being called into question. Sidney Perkowitz explains how understanding the physics behind the blood distribution could help uncover the truth.
Twists, turns, thrills and spills: the physics of rollercoasters
WEBAug 14, 2021 · A unit that might make purists wince, the G-force is the difference between the acceleration, a, that you experience as a rider and the acceleration due to gravity, g, (9.8 m/s 2) divided by g and expressed per unit mass: (a–g)/g.This force comes into play thanks to the movement you undergo on the ride– you experience a “positive” G-force when the train is at the bottom of a hill, and ...
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WEBPhysics World represents a key part of IOP Publishing's mission to communicate world-class research and innovation to the widest possible audience. The website forms part of the Physics World portfolio, a collection of online, digital and print information services for the global scientific community.
Graphene at 20: why the ‘wonder material’ is finally coming good
WEBApr 30, 2024 · The report estimates that the graphene market was worth about $100m in 2022 and is rising at a compound annual growth rate of 20–30%. The biggest potential applications, the authors reckon, lie in graphene electronics, where the market could be worth up to $1bn in the next few years. Growth rates of up to 40% are predicted – …
The enduring mystery of the solar corona – Physics World
WEBSep 16, 2021 · It’s the solar corona – a hot plasma that extends millions of kilometres out into space. This region is a million times dimmer than the solar surface beneath, yet, strangely, it’s at least 1 million kelvin hotter. Seven decades after the unexpected observation was first made, it’s still one of the biggest mysteries in astronomy.
The Turing Test 2.0 - Physics World
WEBTaken from the May 2021 issue of Physics World. When Alan Turing devised his famous test to see if machines could think, computers were slow, primitive objects that filled entire rooms. Juanita Bawagan discovers how modern algorithms have transformed our understanding of the “Turing Test” and what it means for artificial intelligence.
The Casimir effect: a force from nothing – Physics World
WEBSep 1, 2002 · The Casimir force is the most famous mechanical effect of vacuum fluctuations. Consider the gap between two plane mirrors as a cavity (figure 1). All electromagnetic fields have a characteristic “spectrum” containing many different frequencies. In a free vacuum all of the frequencies are of equal importance.
Time crystals enter the real world of condensed matter
WEB17 Mar 2020. Taken from the March 2020 issue of Physics World. Time crystals break time-translational symmetry rather than spatial symmetry, as ordinary crystals do. Peter Hannaford and Krzysztof Sacha look at how this exotic state could have similar applications to condensed-matter devices. (Courtesy: iStock/SiberianArt)
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WEBSent once every two months, the newsletter will bring all the latest optics research updates, industry news and feature articles straight to your inbox. To register simply sign in to your account and tick the “Optics – bimonthly” box. Physics World represents a key part of IOP Publishing's mission to communicate world-class research and ...
Physics World reveals its top 10 Breakthroughs of the Year for 2022
WEBDec 7, 2022 · Physics World is delighted to announce its top 10 Breakthroughs of the Year for 2022, which span everything from quantum and medical physics to astronomy and condensed matter. The overall Physics World Breakthrough of the Year will be revealed on Wednesday 14 December. The 10 Breakthroughs were selected by a panel of Physics World editors, who ...