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An electrostatic motor is based on the attraction and repulsion of electric charge. Usually, electrostatic motors are the dual of conventional coil-based motors. They typically require a high-voltage power supply, although very small motors employ lower voltages. Conventional electric motors instead employ magnetic attraction and repulsion, and require high current at low voltages. In the 1750s, the first electrostatic motors were developed by Benjamin Franklin and Andrew Gordon. Today the electrostatic motor finds frequent use in micro-electro-mechanical systems (MEMS) where their drive voltages are below 100 volts, and where moving, charged plates are far easier to fabricate than coils and iron cores. Also, the molecular machinery which runs living cells is often based on linear and rotary electrostatic motors.[citation needed]
What type of power supply don't electrostatic motors usually have?
A: unanswerable

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If Norman was apparently attempting to change British policy, it was perhaps William Miller (18641945), journalist and expert on the Near East, who did the most in that direction. In essence, he signed the death warrant, so to speak, of the Age of Empires. The fall of the Ottoman Empire ultimately enmeshed all the others as well. In the Travel and Politics in the Near East, 1898, Miller claimed to have made four trips to the Balkans, 1894, 1896, 1897 and 1898, and to be, in essence, an expert on "the Near East," by which he primarily meant the Balkans. Apart from the fact that he attended Oxford and played Rugby not many biographical details have been promulgated. He was in effect (whatever his formal associations if any) a point man of British near eastern intelligence.
What was William Miller's life span?
A: 18641945

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After 12 years as commissioner of the AFL, David Baker retired unexpectedly on July 25, 2008, just two days before ArenaBowl XXII; deputy commissioner Ed Policy was named interim commissioner until Baker's replacement was found. Baker explained, "When I took over as commissioner, I thought it would be for one year. It turned into 12. But now it's time."
What Arena Football League event occurred two days after Baker's resignation?
A: ArenaBowl XXII

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The mandolin has been used occasionally in rock music, first appearing in the psychedelic era of the late 1960s. Levon Helm of The Band occasionally moved from his drum kit to play mandolin, most notably on Rag Mama Rag, Rockin' Chair, and Evangeline. Ian Anderson of Jethro Tull played mandolin on Fat Man, from their second album, Stand Up, and also occasionally on later releases. Rod Stewart's 1971 No. 1 hit Maggie May features a significant mandolin riff. David Grisman played mandolin on two Grateful Dead songs on the American Beauty album, Friend of the Devil and Ripple, which became instant favorites among amateur pickers at jam sessions and campground gatherings. John Paul Jones and Jimmy Page both played mandolin on Led Zeppelin songs. The popular alt rock group Imagine Dragons feature the mandolin on a few of their songs, most prominently being It's Time. Dash Crofts of the soft rock duo Seals and Crofts extensively used mandolin in their repertoire during the 1970s. Styx released the song Boat on the River in 1980, which featured Tommy Shaw on vocals and mandolin. The song didn't chart in the United States but was popular in much of Europe and the Philippines.
What artist from the Greatful Dead played the mandolin?
A:
David Grisman