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WEBAre you an IOP member? Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World account is separate to any IOP accounts you may have.. Note: The verification e-mail to complete your account registration should arrive immediately. However, in some cases it takes longer. Don't forget to check your spam folder.
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 ...
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.
Rutherford’s legacy - Physics World
WEBJun 5, 2019 · Rutherford’s legacy. Taken from the June 2019 issue of Physics World. With the International Year of the Periodic Table of Elements in full swing, John Campbell celebrates the immense contribution of Ernest Rutherford, who first split the atom 100 years ago. “You proved that atoms have balls.”. So went a letter by a group of Russian ...
The double-slit experiment – Physics World
WEBSep 1, 2002 · This article is an extended version of the article “The double-slit experiment” that appeared in the September 2002 issue of Physics World (p15). It has been further extended to include three letters about the history of the double-slit experiment with single electrons that were published in the May 2003 issue of the magazine.
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.
What is time? – Physics World
WEBWhat is time? 24 Oct 2013. Taken from the 25th anniversary issue of Physics World, this article examines one of the five biggest unanswered questions in physics as selected by the magazine’s editors. Scientists and philosophers have been debating the nature of time for centuries, and despite some progress, Adam Frank believes that this is one ...
The legend of the leaning tower – Physics World
WEBFeb 4, 2003 · Mr Galileo was correct in his findings.”. How the legend started. The finding mentioned by Commander Scott, namely that objects of different mass fall at the same rate in a vacuum, is associated with a single person (Galileo) and a single place the Leaning Tower of Pisa. The culprit is Vincenzio Viviani, Galileo’s secretary in the final ...
Brilliant polymath, troubled person: how John von Neumann …
WEBDec 18, 2021 · Visionary thinker John von Neumann (right) received the Medal of Freedom from President Dwight Eisenhower in 1956. (Courtesy: Byron Rollins/ AP/ Shutterstock) Few mathematicians during the last century – perhaps only Bertrand Russell and Alan Turing – were as successfully polymathic as John von Neumann, the subject of the biography The Man from the Future: the Visionary Life of John von ...
Latest - Physics World
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