Anycast allows multiple, identical, globally deployed DNS servers to advertize the same IP address. For all intents and purposes, the same server exists in dozens or hundreds of places simultaneously. When an Internet user looks up your domain name, they find the Anycast instance topologically closest to themselves. Usually, there's a correlation between network topology and physical geography.
The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in about 4000 BCE. The discovery of smelting around 3000 BCE led to the start of the iron age around 1200 BCE and the prominent use of iron for tools and weapons.
Facts And Figures. 1  The first electric steam iron was patented in the U.S. by Swiss inventor Otto Walker in December 1924. 2  Modern ironing boards and pads are designed to work with your iron, enhancing its performance. 3  A wall-mounted ironing-board hanger and steam-iron rest lets you put your iron away while still hot. As you iron, heat is absorbed by the material you're ironing, as well as the ironing board itself. Steam irons are available with up to 2,300 watts of power, but some would argue that 1,500 watts is all you need.