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Helicity is a pseudo-scalar quantity: it changes sign under change from a right-handed to a left-handed frame of reference; it can be considered as a measure of the handedness (or chirality) of the flow. Helicity is one of the four known integral invariants of the Euler equations; the other three are energy, momentum and angular momentum.
A future nanocar with a synthetic molecular motor has been developed by Jean-Francois Morin et al. [15] It is fitted with carborane wheels and a light-powered helicene synthetic molecular motor. Although the motor moiety displayed unidirectional rotation in solution, light-driven motion on a surface has yet to be observed.
The successful prediction of a stock's future price could yield significant profit. The efficient market hypothesis suggests that stock prices reflect all currently available information and any price changes that are not based on newly revealed information thus are inherently unpredictable. Others disagree and those with this viewpoint possess ...
The setup combines an electric motor and a 177-hp turbocharged 1.5-liter gas engine with a 188-hp electric motor. While it's still a few years out, we expect to see a similar 2027 Chevy Equinox ...
Synthetic molecular motors are molecular machines capable of continuous directional rotation under an energy input. [2] Although the term "molecular motor" has traditionally referred to a naturally occurring protein that induces motion (via protein dynamics ), some groups also use the term when referring to non-biological, non-peptide synthetic ...
Unlike a molecular motor, any mechanical work done due to the motion in a switch is generally undone once the molecule returns to its original state unless it is part of a larger motor-like system. The image on the right shows a hydrazone -based switch that switches in response to pH changes.
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Lucid Motors announced another capital raise via a share sale late Wednesday night as the California-based EV maker seeks further runway ahead of the release of its upcoming electric SUV.