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According to archaeologists, the wheel was invented around 4000 B.C. probably independently and nearly-simultaneously in Mesopotamia (in present-day Iraq), the Northern Caucasus (Maykop culture) and Central Europe. Estimates on when this may have occurred range from 5500 to 3000 B.C., with most experts putting it closer to 4000 B.C. The oldest artifacts with drawings that depict wheeled carts date from about 3000 B.C.; however, the wheel may have been in use for millennia before these drawings were made. There is also evidence from the same period of time that wheels were used for the production of pottery. (Note that the. | ASSET nternational Series on Advances in Solid State Electronics and Technology Founding Editor Chih-Tang Sah MOSFET MODELING FOR VLSI SIMULATION Theory and Practice Narain Arora World Scientific MOSFET MODELING FOR VLSI SIMULATION Theory and Practice International Series on Advances in Solid State Electronics and Technology ASSET Founding Editor Chih-Tang Sah Published Modem Semiconductor Quantum Physics by Li Ming-Fu Topics in Growth and Device Processing of III-V Semiconductors by Stephen John Pearton Cammy R. Abernathy Fan Ren Ionizing Radiation Effects in MOS Oxides by Timothy R. Oldham Forthcoming MOSFET Modeling for Circuit Analysis and Design by Carlos Galup-Montoro Márcio Cherem Schneider The Physics and Modeling of MOSFETS Surface-Potential Model HiSIM by Mitiko Miura-Mattausch Hans Jurgen Mattausch Tatsuya Ezaki BSIM4 Theory and Engineering of MOSFET Modeling for IC Simulation by Weidong Liu Chenming .
