2023-01-17T04:33:04Z 2023-01-17T04:33:04Z

<br/>An example of showing map data from public source to browser - <a href="http://www.infoq.com/cn/articles/visualization-of-the-global-seismic-system">http://www.infoq.com[..]sualization-of-the-global-seismic-system</a> <br/><br/>Opensource map - <a href="https://graphhopper.com/">https://graphhopper.com/</a> <br/><br/>Absolute location: how the equator, meridians, and our system of positioning work - <a href="https://www.zmescience.com/other/feature-post/absolute-location-how-the-equator-meridians-and-our-system-of-positioning-work/">https://www.zmescience.com[..]ians-and-our-system-of-positioning-work/</a> <br/><br/><script type="text/javascript"><!--google_ad_client = "pub-9426659565807829";google_ad_slot = "9359905831";google_ad_width = 728;google_ad_height = 15;//--></script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>

2023-01-17T04:33:04Z 2022-08-07T13:44:49Z 2022-08-07T13:44:49Z

<br/>How flight tracking works - <a href="https://www.flightradar24.com/how-it-works">https://www.flightradar24.com/how-it-works</a> <a href="https://www.infoq.cn/article/FFiLmLpXsVw81A5O8Pmz">https://www.infoq.cn/article/FFiLmLpXsVw81A5O8Pmz</a> <br/><br/><script type="text/javascript"><!--google_ad_client = "pub-9426659565807829";google_ad_slot = "9359905831";google_ad_width = 728;google_ad_height = 15;//--></script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>

2022-08-07T13:44:49Z 2021-10-12T05:05:40Z 2021-10-12T05:05:40Z

<br/>This small, cheap, and extremely accurate gyroscope could revolutionize navigating - <a href="https://www.zmescience.com/science/small-accurate-gyroscope-08102021/">https://www.zmescience.com[..]ience/small-accurate-gyroscope-08102021/</a> <br/><br/><script type="text/javascript"><!--google_ad_client = "pub-9426659565807829";google_ad_slot = "9359905831";google_ad_width = 728;google_ad_height = 15;//--></script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>

2021-10-12T05:05:40Z 2021-08-17T00:10:29Z 2021-08-17T00:10:29Z

<br/>SpaceX launches new satellite that will make GPS three times more accurate (eventually) - <a href="https://www.zmescience.com/science/spacex-satellite-three-times-accurate-gps-045235/">https://www.zmescience.com[..]tellite-three-times-accurate-gps-045235/</a> <br/><br/>How GPS works: the magic of satellites and precise watches - <a href="https://www.zmescience.com/other/feature-post/how-gps-works-27042021/">https://www.zmescience.com[..]her/feature-post/how-gps-works-27042021/</a> <br/><br/><script type="text/javascript"><!--google_ad_client = "pub-9426659565807829";google_ad_slot = "9359905831";google_ad_width = 728;google_ad_height = 15;//--></script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>

2021-08-17T00:10:29Z 2009-06-08T16:53:05Z 2009-06-08T16:53:05Z

<br/><a href="http://www.columbia.edu/kermit/postal.html">http://www.columbia.edu/kermit/postal.html</a> <br/><br/><script type="text/javascript"><!--google_ad_client = "pub-9426659565807829";google_ad_slot = "9359905831";google_ad_width = 728;google_ad_height = 15;//--></script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>

2009-06-08T16:53:05Z 2008-10-16T17:08:48Z 2008-10-16T17:08:48Z

<br/>China - <a href="http://www.iphone.org.hk/cgi-bin/ch/topic_show.cgi?id=9282&pg=1#44421">http://www.iphone.org.hk[..]bin/ch/topic_show.cgi?id=9282&pg=1#44421</a> <br/>HK - <a href="http://www.iphone.org.hk/cgi-bin/ch/topic_show.cgi?id=9190&pg=1#44125">http://www.iphone.org.hk[..]bin/ch/topic_show.cgi?id=9190&pg=1#44125</a> <br/><br/><script type="text/javascript"><!--google_ad_client = "pub-9426659565807829";google_ad_slot = "9359905831";google_ad_width = 728;google_ad_height = 15;//--></script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>

2008-10-16T17:08:48Z 2005-09-26T04:25:06Z 2005-09-26T04:25:06Z

<br/>A very nice China web base map service<br/><br/><a href="http://service.mapbar.com/localsearch/main.jsp">http://service.mapbar.com/localsearch/main.jsp</a> <br/><br/><script type="text/javascript"><!--google_ad_client = "pub-9426659565807829";google_ad_slot = "9359905831";google_ad_width = 728;google_ad_height = 15;//--></script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>

2005-09-26T04:25:06Z