Micro R/C Car Hacks for Model Airplane Use

This is a great example of what you can do with the right parts a bit of know how.

This article describes the construction of a rudder-only controlled model airplane that weighs 2.5 ounces. Total cost was about $35. For sure, I learned some interesting things along the way, all of which are shared here. The good news is that the electronic modifications are working well.Perhaps there’s something in here that you will find useful for YOUR own Micro-Sizer / BitChar-G airplane powered hack.

[via DIY Live]
RC-CAM Projects: Micro R/C Car Hacks for Model Airplane Use

DIY Nikon D70 Infrared Camera Mod

Removing the infrared filter n a Nikon D70 DSLR cameraAh, there is nothing quite like the thrill of hacking up an expensive digital camera and undoing what engineers spent countless hours fixing. I’m referring to the filter that cuts down the infrared wavelength light that strikes the image sensor. You see, if you don’t filter out the IR your images tend ot be washed out. Now this is fine if you just want to take the same old boring pictures that everyone else does. If you don’t, then this hack is for you. Once you have done this you can make some very cool looking photos by shooting through what to the naked eye looks to be a solid sheet of plastic. That plastic is a filter that only passes infrared light. Grass and leaves look white, dark clothing looks gray, the sky is black… The effect is stunning.

Nikon D70 IR cut filter removal

Prophetic Postcards Back From 1914

Old Russian postcardsThis is good look at a future that might have been.

This is a series of old postcards back from 1914 describing their look in future of Moscow city.
Authors in 1914 tried to figure out how would their city look after 100-200-300 years from then.
We now can see were they successful or not.
The picture above shows how should look one of Moscow highways in 200 years after 1914. It should be totally polished with an ice so that ultramodern air-motored sleighs could glide fast and easy.

English Russia » Prophetic Postcards Back From 1914

DIY Underwater Rocket Launcher

You know, nothing says ‘Fourth of July’ like rockets shooting out of the pool!

Joe Peck has extended the pursuit of realism in model rocketry to the launch environment. Think Poseidon here — this rocket launches from underwater. Initially, it’s sealed watertight from nose to nozzle. Ignition is triggered by bringing a magnet close to a sensor contained in the upper section. The motor ignites, blowing off the bottom end cap and we have liftoff! If you’re into model rocketry, here’s your next challenge.

[via MAKE]
Project Dragon Fish: Joe Takes Rocket Science to New Depths