Xiaoyu

openstreetmap

the openstreetmap conference is hosting in Amsterdam , it is nice to be there. OSM member got free access. otherwise, you have to pay Gelds…..

as we know, if there is a plane crashed, the only evidence or data of the plane is the black box. and what is a black box. Normally, it is very very very strong metal tape recorder, which can record all kinds data of airplane for certain length(such as, store 30min data before it crash). however, the problem is that , if the black box cannot find back, you dont have any data left. it doesn’t matter how many black box you store in a airplane, it doesn’t matter which safe position you stored. actually, it is never safe to store it on airplane. because it will crash.

I am GIS people, we are think in spatial way. why not design a GIS system for airplane? the airplane send instantly data back to central server via satellite. nowadays technology, i think our IT engineering can make it come true. as i know, people recording all satellite data, which orbit it running, which height, which position. they all can be remotely stored in somewhere else, you dont need to store the data on satellite.

in future, there should be some system can store all data of flying object on the ground. maybe  google will solve the problem, google have a big index database. it index everything on internet. from ge, sometimes we can some dynamic maps of satellite or ships. So GIS technology is a good solution for engineer get rid of the black box. why we need a old tape recorder in 21st centuries.

after i sold my Dell d600 which about 5 years old. I got my first mac at 2009 April. as you see, i have use mac for a while.

And my mac is the cheapest mac in the mac store. it is the latest version mac mini.

the photo is took in 04 Beijing. it is the first time I meet Jim’s mac, which is my first time meet Mac computer and system.

JimMacSam

Now back to Open source topic. few weeks ago, i got one old desktop which is 7 years old. it is quite old pc. but to install XP or linux. it is still quite fast. To use voipdisacount call my mom who live in China. I have to install XP on the old pc. however, there is only wireless available at my home. The 7-years-old desktop is definitely without wifi. then my old desktop is standalone pc, which is useless. because i want to install voipdisaccount call China. well, Thanksful, I figure out, mac os can easily share internet resource with other pc via cable or firewire. besite that, there is few options allow mac user to hosting web/share file/etc.

accidently, I found that mac os preinstall Apache Http Server and Filezila FTP server(actually, right now I am not sure about their license), anyway, I am very surprised about that. I thought Mac os would supply its own http server or FTP server. These components won more credits than ms.

finally, i found Python also pre-install on mac os. since I go to mac os world, I start understanding people why shift to mac , NEVER BACK TO MS OS.

If I discover more interesting stuff from mac, I would post here later on.