Well, it's certainly a truss bridge (notice the thick, tubular, "lenticular" trusses at the top). The vertical ties running from the top curve ("chord") of the trusses, through the bottom curve, down to the deck mean that the bridge does not push outward on its supporting towers, tho...
Look closely at the digits on a calculator and you'll see each one is made from a different pattern of seven bars or segments. The processor chip knows it can display any of the numbers 0–9 by activating a different combination of these seven segments. It can't easily display letters,...
Types of electric carsElectric cars broadly come in two main varieties: battery electric (sometimes called BEV, or battery electric vehicles), with just an electric motor for power; or hybrid, with both an electric motor and a conventional gasoline engine. This article is mostly about battery ...