And the company, which is among the most innovative in the world, just released its newest drone, the Phantom 4, last week. DJI successfully raised more than $575 million in VC funding last year, more than enough for operations, so an IPO in the near future is unlikely. However, there's one publicly traded company that makes a critical component to DJI's products, as well as the drones made by the other top manufacturers. Ambarella (AMBA) manufactures high-definition video chipsets.
The demarcation of the longitude coordinate is done with lines going up and down are called the meridians. A figure to the right shows a few meridians. Longitude ranges from 0Â° to 180Â° East and 0Â° to 180Â° West. The longitude angle is measured from the center of the earth as shown in the earth graphic to the right. The zero point of longitude is defined as a point in Greenwich, England called the Prime Meridian.
(April 2012). A (geographical) meridian (or line of longitude) is the half of an imaginary great circle on the Earth's surface, terminated by the North Pole and the South Pole, connecting points of equal longitude. The position of a point along the meridian is given by its latitude. Each meridian is perpendicular to all circles of latitude. Each is also the same length, being half of a great circle on the Earth's surface and therefore measuring 20,003.93 km (12,429.9 miles).