Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Artist's visualization of the doorway states: the "trapped" electrons are like a frog, which has enough energy to escape but does not find the door. Imagine a frog sitting inside a box. The box has a ...

After over a decade of meticulous data collection, scientists at the H.E.S.S. observatory — which stands for "High Energy ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Collaboration MPIK/H.E.S.S. After over a decade of meticulous data collection, scientists ...