We can use formulas to model real-life situations. For example, the formula for calculating speed is speed = distance ÷ time. It is possible to calculate the speed, distance or time if you have the ...

Have you thought about your learning goals for the new year? Is one of them to improve your English language skills? We spoke to two teachers who explain how to set different types of goals and more ...

Jan. 17, 2026 Engineers have created a device that generates incredibly tiny, earthquake-like vibrations on a microchip—and it could transform future electronics. Using a new kind of “phonon laser,” ...