The Romans were the first to invent the mirror. In Mesopotamia mirrors coated with copper were manufactured as early as 4000 BC, in Egypt from around 3000 Bc and in China from around 2000 Bc. Metal-coated mirrors were invented in sidon, Lebanon in the 1st century AD. Romans also made mirrors by pouring molten lead over blown glass. The history of mirrors dates back to the time when people used to see their reflection in ponds and lakes. Eventually they came up with the idea of making mirrors out of glass and metals.
Existing communications and computer architecture are increasingly being limited by the pedestrian speed of electrons moving through wires, and the future of high-speed communication and computing is in optics, experts say. The Holy Grail of results would be "wireless interconnecting," which operates at speeds 100 to 1,000 times faster than current technology. The new discovery, made by researchers at Oregon State University, the University of Iowa and Philipps University in Germany, has identified a way in which nanoscale devices based on gallium arsenide can respond to strong terahertz pulses for an extremely short period, controlling the electrical signal in a semiconductor. The research builds on previous findings for which OSU holds an issued patent.
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