American scientists have captured the image of a huge lightning bolt that, instead of hitting the ground, went up into the clouds. These rare weather events (only 5 have been recorded since 2001) are known as "giant jets".
Gallium nitride is a light-emitting compound already used in camera flashes, bicycle headlights, mobile phones, and lighting inside trains and airplanes. Now British researchers propose using it in homes.
Tactile switches work thanks to an integrated circuit and a semiconductor electronic device that controls the conducting / non-conducting states of the circuit. One...
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
