EW, Ew, or ew may refer to:

EW [link]

Weekly publications [link]

Ew [link]


https://wn.com/EW

Orders of magnitude (power)

This page lists examples of the power in watts produced by various sources of energy. They are grouped by orders of magnitude, and each section covers three orders of magnitude, or a factor of one thousand.

Below 1 watt

Below 1 yoctowatt

  • 1.64 × 10−27 watt – phys: approximate power of gravitational radiation emitted by a 1000 kg satellite in geosynchronous orbit around the Earth.
  • zeptowatt (10−21 watt)

  • ~10 zW – tech: approximate power of Galileo space probe's radio signal (when at Jupiter) as received on earth by a 70-meter DSN antenna.
  • attowatt (10−18 watt)

  • 1 aW – phys: approximate power scale at which operation of nanoelectromechanical systems are overwhelmed by thermal fluctuations.
  • 100 aW – tech: the GPS signal strength measured at the surface of the Earth.
  • femtowatt (10−15 watt)

  • 2.5 fW – tech: minimum discernible signal at the antenna terminal of a good FM radio receiver
  • 10 fW (−110 dBm) – tech: approximate lower limit of power reception on digital spread-spectrum cell phones
  • Elkhart and Western Railroad

    The Elkhart and Western Railroad (reporting mark EWR) is a Class III short-line railroad operating in and around the city of Elkhart in Elkhart County, Indiana, and is a subsidiary of Pioneer Railcorp.

    Pioneer Railcorp (reporting mark PREX) created the Elkhart and Western on May 1, 2001 from a 10-mile (16 km) stretch of the Michigan Southern Railroad. The line begins at its junction with the Norfolk Southern Railway near the center of Elkhart, then crosses the St. Joseph River which it follows westward, and finally ends on the northeast side of Mishawaka in neighboring St. Joseph County.

    Freight hauled on the E&W consists mainly of auto frames, lumber and cement.

    Power

    The EWR received its two locomotives from Pioneer Railcorp, and although the units no longer have the Pioneer reporting marks the units are still owned by EWR's parent.

    External links

  • Elkhart and Western Railroad
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