W. Duddell read before the Institution of Electrical Engineers a paper on “Rapid Variations in the Current through the Direct-Current Arc,” which he illustrated by experiments. Members of the ...

Explore the fun of science in your own home with some amazing experiments from The Let's Go Club. You and your little one can recreate these simple colourful experiments using common household items.

Through the hole in the shell look at the mirror as if this were some distant object. While you are so doing, the concave shell will suddenly assume a strongly convex appearance. You may then ...

Drone footage shows the aftermath of a plane crash in Gramado, Brazil, killing all 10 on board, including the pilot and his ...