有关于gps的英语小短文

发布时间:2017-05-05 14:17

随着全球一体化的发展,我国急需高水平的外语人才。英语作为一门国际性语言,其地位的重要性不容忽视。小编整理了有关于gps的英语小短文,欢迎阅读!

有关于gps的英语小短文篇一

“Don't worry about it. I have your GPS co-ordinates from your last location. I'll check up on the area and look for buildings or other structures in the vicinity. Let's call it a night. I'll see to it you get home safely,” Doug told his partner. He kept monitoring his partner's location while going through the computer system to search for information about the location at which his partner had to abort the tracking mission. That area where the target vehicle turned off-road was remote, off a stretch of highway without traffic cameras.

有关于gps的英语小短文篇二

神秘的暗物质可用GPS卫星探测到

The everyday use of a GPS device might be to find your way around town or even navigate a hiking trail, but for two physicists, the Global Positioning System might be a tool in directly detecting and measuring dark matter, so far an elusive but ubiquitous form of matter responsible for the formation of galaxies. Andrei Derevianko, of the University of Nevada, Reno, and his colleague Maxim Pospelov, of the University of Victoria and the Perimeter Institute for Theoretical Physics in Canada, have proposed a method for a dark-matter search with GPS satellites and other atomic clock networks that compares times from the clocks and looks for discrepancies.

"Despite solid observational evidence for the existence of dark matter, its nature remains a mystery," Derevianko, a professor in the College of Science at the University, said. "Some research programs in particle physics assume that dark matter is composed of heavy-particle-like matter. This assumption may not hold true, and significant interest exists for alternatives."

"Modern physics and cosmology fail dramatically in that they can only explain 5 percent of mass and energy in the universe in the form of ordinary matter, but the rest is a mystery."

There is evidence that dark energy is about 68 percent of the mystery mass and energy. The remaining 27 percent is generally acknowledged to be dark matter, even though it is not visible and eludes direct detection and measurement.

"Our research pursues the idea that dark matter may be organized as a large gas-like collection of topological defects, or energy cracks," Derevianko said. "We propose to detect the defects, the dark matter, as they sweep through us with a network of sensitive atomic clocks. The idea is, where the clocks go out of synchronization, we would know that dark matter, the topological defect, has passed by. In fact, we envision using the GPS constellation as the largest human-built dark-matter detector."

Their research was well-received by the scientific community when the theory was presented at scientific conferences this year, and their paper on the topic appears today in the online version of the scientific journal Nature Physics, ahead of the print version.

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