So, we were in geography class (or should I say, G-Yeo-graphy class) when our teacher decided that Google Earth would make for a fun teaching aid. The entire class sat in awe as we explored Taiwan (a particularly fun experience due to the fact that Richard and Joshua could read the traditional Chinese labels), Hong Kong, Surfer’s Paradise, and finally Sydney.
It was so fun that I had to play with it myself, so I downloaded Google Earth last night.
The first thing that I noticed was that the installer didn’t actually include the contents of the software, but instead contained a mechanism to download the contents of the actual installer to a place where it couldn’t be intercepted – presumably to protect Google’s intellectual property claims; not that it really matters, because you need a working internet connection to use Google Earth anyway.
Now, I realise that Google Earth is so 2005 i.e. around 4 years old now, but I found it absolutely incredible, albeit being more fun than useful. To illustrate my point, here is the Sydney Harbour Bridge according to Google Earth:

Firstly, you’ll notice that the bridge is rendered as a 3D model. Some brilliant person or group by the name of ilesoft used Google’s SketchUp program to do this. The blue squares represent geo-tagged photos, to a very decent level of accuracy (despite the difficulty in this sort of calibration). I think my IPT teacher would find this use of analysing quite hilarious indeed. The camera icons in yellow bubbles represent Google’s Street View feature.
Notice, however, the the satellite imagery of the bridge in 2D is hanging under the model. Very few things are actually rendered in 3D in Google Earth, but when they are, they look fantastic. This can be seen in a view of the CBD, where only some of the buildings are rendered in 3D:

Of course, this is absolutely peanuts when compared to some other cities, such as the famous Big Apple itself, New York City:

Although, you’ll notice, most of the buildings have a very simple, generic look that only has the shape of the building but not the texture – whoever did the Sydney buildings worked just as hard, but whoever did the New York buildings had quantity in mind.
Now as if that wasn’t mind-blowing enough, here is Paris – complete with Eiffel Tower. Note that both New York and Paris literally lagged my computer; I even had to turn off my music because it started stuttering.

Another really cool thing about Google Earth is that it even has a flight simulator with a virtual heads-up display. Here I am flying over suburban Sydney:

I have to admit, though, that flying the virtual plane is really quite hard; then again, my hand-eye coordination is not that great, and admittedly this thing was designed for joysticks.
Interestingly, 3D structures cannot exist in flight simulator mode. Here’s the Sydney Harbour Bridge again, this time from flight simulation view:

See? The brilliant 3D model is gone, so the phantom shadow looks rather awkward. On the other hand, it is probably for the better – flight simulator uses a lot of system resources.
Here are some other cool things that you must see:

Yes, that is London, complete with the London Eye, the Thames bridge, and Westminster, all in 3D.

That’s the Q1 building in Surfer’s Paradise, Queensland. Notice how it’s slightly off-position, but otherwise spectacular.
What’s the point of all this? I think the best thing about Google Earth is that it is humbling. Something about seeing the rest of the world in a virtual tour makes you realise how insignificant you are compared to the grandeur of the planet, and yet, at the same time, shows you how you fit in to this world.
So, to prove my point, I will conclude with a picture of Mount Everest.
