It’s a common belief among drivers that shifting an automatic transmission car into neutral while idling — at a red light, in traffic, or during a brief stop — might save fuel. The logic sounds simple: if the car isn’t “in gear,” the engine must be working less, right? But experiments and real-world observations suggest…

If you wear glasses and have astigmatism, you’ve probably noticed that your prescription includes two parts: the sphere (Sph) and the cylinder (Cyl). Normally, people with astigmatism are prescribed toric contact lenses, which correct both the spherical and cylindrical part of the prescription. But toric lenses are not always convenient. They can be harder to…