Using the NSAâs XKEYSCORE software, analysts can see ânearly everything a user does on the Internetâ including emails, social media posts, web sites you visit, addresses typed into Google Maps, files sent, and more.hone company call records reveal where you were at the time that a call was made, because they include the identifier of the radio tower that transmitted the call to you. The government has repeatedly denied that it collects this information, but former NSA employee Thomas Drake said they do.
Smelting involves more than just melting the metal out of its ore. Most ores are a chemical compound of the metal with other elements, such as oxygen (as an oxide), sulfur (as a sulfide) or carbon and oxygen together (as a carbonate).To produce the metal, these compounds have to undergo a chemical reaction.he oxides, in turn, are smelted into the metal. Carbon monoxide was (and is) the reducing agent of choice for smelting. It is easily produced during the heating process, and as a gas comes into intimate contact with the ore.
Waulking (also known as fulling) is the process in making cloth where it is beaten to make it thicker and water resistant (especially needed in Scotland). Fulling mills were introduced in medieval times but in many more remote and self-sufficient areas, the process continued to be done by hand up into the 20th century.