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 ...
Home – Physics World
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.
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.
Brilliant polymath, troubled person: how John von Neumann …
WEBDec 18, 2021 · A relative journey. Hence von Neumann’s emotional commitment to the atomic and hydrogen bombs and America’s Cold War against the Soviet Union – not to speak of his immunity to McCarthyite witch-hunts of Communist sympathizers. Einstein, by contrast, famously never felt at home in America, had little taste for money and deliberately avoided society in Princeton, including von Neumann’s ...
Magazine - Physics World
WEBThe Physics World digital magazine offers you easy access to all the available editions of Physics World at the touch of a button. Read issues of Physics World the moment they are published. Choose to read as a PDF-based e-magazine or as individual online articles. Access on desktop, mobile or tablet. Search within issues to find content.
Rutherford's big discovery – 100 years later – Physics World
WEBSep 1, 2011 · Rutherford’s famous alpha-particle scattering experiment transformed our understanding of the atom and it inspired the new areas of physics including the theory of quantum mechanics. The pioneering work was carried out at the University of Manchester where Rutherford held the Chair of Physics for 12 years.
Balloon bursts approach the speed of sound – Physics World
WEBNov 3, 2015 · Bursting balloons is good fun, but there is also some fascinating physics lurking in how the fabric of the balloon is ripped apart. Two physicists in France have studied the bursting process using a high-speed camera, and have discovered that there is a critical point in the inflation of a balloon beyond which it will create beautiful flower-like patterns when it bursts.
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.
Do atoms going through a double slit ‘know’ if they are being …
WEBMay 26, 2015 · In the famous double-slit experiment, single particles, such as photons, pass one at a time through a screen containing two slits. If either path is monitored, a photon seemingly passes through one slit or the other, and no interference will be seen. Conversely, if neither is checked, a photon will appear to have passed through both slits ...
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.
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