Hacksbot Workshop Nickel Tour

How to square a vise on a mill using a plunge indicator

Like I say in the video this might be news to nobody but me but just in case ;-)
Using a plunge dial indicator to square a vice from Lumensa on Vimeo.
Winscape Virtual Views

Very cool hack to turn two LCD monitors and a Wii mote in to windows with a virtual view that track the perspective of the viewer.
From Rationalcraft
One improvement would be to use cameras as in Project Natal so that the viewer would not have to wear anything special for the effect.
Google Earth 3D Buildings Gaining Fidelity

Google has given a select few large international cities the high res texture treatment. For a while now you could view buildings in 3D in Google earth. In many cases without textures on them or with low res textures. Now Google have applied Google Street View images as textures on the buildings in a few select cities making them much more interesting to look at. Check out the vid.
Fireball over Iowa

Large meteors are called fireballs. Here is a nice sized one filmed in Iowa last night.