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About - App Inventor for Android. - Where ideas and people meet. Coilgun. A coilgun (or Gauss gun, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity.[1] In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.


Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails.

History[edit] Construction[edit] A single stage coilgun. Top 10 Lists - Listverse. The Political Compass - Test. Save up to £425 on your Gas and Electricity Bills Now! We compare the whole energy market Learn about all gas and electricity suppliers with our energy supplier pages.

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See plans and tariffs, their price history, and their customer satisfaction scores. If you're ready to switch your gas and electricity hit 'compare now' to compare energy suppliers in your area. British Gas is the UK’s largest supplier of gas and electricity for domestic use and is part of the Centrica Group, which was formed following the merger of British Gas plc in 1997. British Gas also operates under the names Scottish Gas in Scotland and Nwy Prydain in Wales. Customer rating 65% EDF Energy is one of the ‘Big Six’ suppliers. E.ON is one of the UK’s largest electricity and gas suppliers. Customer rating 74% npower supplies gas and electricity to around 6.8 million customers in the UK.

Customer rating 52% ScottishPower provides gas and electricity to over 5.2 million domestic customers in the UK and maintains a large distribution network. Customer rating 70% Customer rating 72% FFFFOUND! The World's 18 Strangest Bridges: Gallery. Background: This floating bridge, which was completed in 1966, carries State Route 520 from Seattle to Medina, Washington. At 1.4 miles long, it has one of the longest floating spans in the world. Why It's Innovative: Because Lake Washington can be more than 200 feet deep, building a suspension bridge across it was not a viable option in the 1960s. The floating design, which relies on concrete pontoons that are anchored by underwater weights, was the perfect solution.

In its more than 40 years of existence, the Evergreen Point Floating Bridge has been battered by high-speed winds and even withstood a barge crashing into it. However, these abuses, along with the bridge's vulnerability to earthquakes, have forced the Washington Department of Transportation to launch a project aimed at replacing the structure. Gapminder: Unveiling the beauty of statistics for a fact based world view.