Learn how concave mirrors form images with a clear, step-by-step explanation that makes the mirror equation easy to understand. This lesson covers ray diagrams, focal length, image position, and ...

Spend five minutes listening to the American Left’s most theatrical tribunes — Bernie Sanders, Elizabeth Warren or Alexandria Ocasio-Cortez — and you’ll probably hear tales of a country on the verge ...

The experiment of using Kookaburra cricket balls in some rounds of the County Championship has been scrapped. Kookaburras have been used in some rounds for each of the past three seasons, but the move ...

The Christmas countdown is officially on, and hundreds of brands have dropped their 2025 advent calendars. Long gone are the days of just having a simple chocolate calendar; now you can get calendars ...

I've worked as a shopping writer for three years, and in that time I've tested more than 40 candles - many of which were Christmas-themed, from spicy classics to sugary sweet scents. But this year, I ...

Tears flowed at a vigil for the tragic teen who died following a violent stabbing in Donaghmede, north Dublin on Wednesday. It is suspected that Vadym Davydenko, 17, died after he was stabbed in the ...

Although Elon Musk disagrees, many consider Lidar sensors crucial for safe autonomous driving. However, a recent experiment appears to prove Musk's claim that Lidar is a fool's errand. Researchers ...

The Science Siblings popped by with an experiment fit for Liftiversary week involving balloons, candles, and oranges. Paige and Adam Jacobson suggest safety glasses too. “We will be working with ...

Mihalis Dafermos holds the Lowndean Chair of Astronomy and Geometry at the University of Cambridge, UK. Yvonne Choquet-Bruhat was a giant of the mathematical study of Albert Einstein’s general theory ...