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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Are 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.
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 ...
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 …
Water droplets make an impact – Physics World
May 1, 2001 · 1 Making an impact (a) An undeformed drop with diameter D 0 hits the surface and spreads out to its maximum diameter, D max, within the first 2 ms.The drop subsequently retracts and can either detach from the surface, as happens for pure water (b), or remain bound to the surface, like the polyethylene oxide solution (c).
James Clerk Maxwell: a force for physics – Physics World
Dec 1, 2006 · Deserving recognition. Unless one is a poet, a war hero or a rock star, it is a mistake to die young. James Clerk Maxwell – unlike Isaac Newton and Albert Einstein, the two giants of physics with whom he stands – made that mistake, dying in 1879 at the age of just 48.
The physics of blood spatter – Physics World
Oct 17, 2019 · Joe Bryan, once a popular and respected high-school principal in a small Texas town, has been in prison for over 30 years. He is serving a 99-year sentence for the shooting and murder of his wife in 1985. The evidence incriminating him involved spots of the victim’s blood found on a hand-held torch.
The Turing Test 2.0 – Physics World
May 8, 2021 · Are 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 …
Paul Dirac: the purest soul in physics – Physics World
Feb 1, 1998 · Are 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 …
Nuclear-powered spacecraft: why dreams of atomic rockets are …
Feb 1, 2024 · Going nuclear America’s DRACO rocket will use the heat from a fission reactor to propel it into space. (Courtesy: Lockheed Martin) In 1914 H G Wells published The World Set Free, a novel based on the notion that radium might one day power spaceships.Wells, who was familiar with the work of physicists such as Ernest Rutherford, knew that radium could produce heat and envisaged it being used ...