Soldering other precipitation may wash the lead into the groundwater. Unfortunately, most lead-free solders are not eutectic formulations, melting at around , making it more difficult to create reliable joints with them. Other common solders include low-temperature formulations (often containing bismuth), which are often used to join previously-soldered assemblies without unsoldering earlier connections, and high-temperature formulations (usually containing silver) which are used for high-temperature operation or for first assembly of items which must not become unsoldered during subsequent operations. Alloying silver with other metals changes the melting point, adhesion and wetting characteristics, and tensile strength. Of all the brazing alloys, silver
What Was Lost 2004. Kurt is a security guard at Green Oaks. He has a sleeping disorder. Lisa is the deputy manager of a music store. She is unhappy because of the strange behaviour of her colleagues and customers and because of her relationship with her partner. She becomes friends with Kurt. A girl holding a soft toy is seen in a CCTV security monitor. Kurt and Lisa follow the girl through Green Oaks and investigate how she is connected to Green Oaks' unsettling history. It is revealed that both Kurt and Lisa have connections to the case of the missing girl. "What