Twists, turns, thrills and spills: the physics of rollercoasters
Aug 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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Max Planck: the reluctant revolutionary – Physics World
Dec 1, 2000 · Quantum uncertainty Max Planck is widely credited for being the first person to realize that the energy of a body is “quantized”, but history shows that this is probably not what he had in mind at the time. Indeed, the “discovery” of quantum theory should not be seen as a moment of insight in December 1900, but as an extended process by many physicists.
How to build a super-magnet - Physics World
Aug 19, 2018 · Finding the right superconductor. A superconducting magnet of ≥25 T typically comprises an outer magnet (or “outsert”) made from LTS materials and an insert that uses HTS materials. In the 32 T NHMFL magnet, the outsert section consists of three coils of niobium-tin (Nb3Sn) and two coils of niobium-titanium (NbTi), all supplied by Bruker ...
Stephen Hawking’s scientific legacy – Physics World
May 1, 2018 · Congratulations to Seth Lloyd, whose article “Stephen Hawking’s scientific legacy“ has been picked as one of Physics World‘s five favourite features of 2018.The article is taken from the May 2018 issue of Physics World.. The late Stephen Hawking is an icon of modern physics. As well as inspiring generations of scientists, his contributions have …
The Turing Test 2.0 – Physics World
Taken 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 double-slit experiment - Physics World
Sep 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 physics of blood spatter – Physics World
17 Oct 2019. Taken 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.
The enduring mystery of the solar corona – Physics World
Sep 16, 2021 · Sunny times The solar corona photographed by Andreas Möller during the 2020 total eclipse over Argentina (image processing by Miloslav Druckmüller), showing plasma outflowing to space, bright loops and a coronal mass ejection. (Courtesy: Miroslav Druckmüller, Andreas Möller) Look towards the Sun during a total solar eclipse (taking proper precautions of course) and you’ll see a beautiful ...
Graphene at 20: why the ‘wonder material’ is finally coming good ...
Apr 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 – and potentially ...