Side Protection Temporary Disabled - Traverse Forum Early 70s, pre GPS days Traveling from Manhattan, to S I across New York Harbor in a worsening whiteout blizzard Forward propellers started turning bringing it to a stop, just drifting Ferry is monster size with about 100 cars in 6 lanes with 500+ upper passenger accommodation
全球定位系统 (GPS) 是广义相对论的应用吗？ - 知乎 14 5 2014更新 搞测绘的看了几个答案感觉都其实不准确，憋不住了站出来简单说一下吧。 GPS不是相对论的应用 相对论改正只是卫星钟误差中的一个影响很小的系统误差改正项。 GPS系统有两个用途 主要用途， to drop 5 bombs in the same hole - 定位用途（这也可以看出设计这个系统时军方目标精度是米级
3rd Gen Entune Radio Head Unit Comparison - Tacoma World Navigation via Scout GPS app when conected to phone Premium aka "Entune Premium" which comes in either: non-JBL (internal amplification) JBL (external amplification, sub, etc ) Integrated Navigation Entune App Suite Optional DCM aka Telematics Transceiver (Entune 3 0 only) Other notes about the various head units and related parts: Cross