Heads-up display mounts on brim of your cap

[Matt Kwan] says that coming up with a personal heads-up display wasn’t that hard. Well that’s because he made design choices that make all the difference.

The goal here was to add some augmented reality to his field of vision. He went with a baseball cap because it’s a pretty easy way to strap something to your head. You can’t … Read the rest

Aquarium water exchanger built from Keurig parts

We keep seeing commercials for those Keurig coffee makers that use a plastic pod of grounds to brew just one cup of coffee. We’re pretty sure this is a fad, and absolutely sure that the extra packaging created by brewing with this method is a waste. But to each his own. [Danman1453] has two of the devices. One he bought, … Read the rest

Dead HDD smartphone stand still holds secret data

We’ve actually got a few dead hard drives collecting dust so when we hear about a project that finds a use for one we perk up a bit. But we were somewhat disappointed when we discovered this was a smartphone stand, pen holder, and LED lamp in one. We just don’t have a use for this kind of triple-tasker. But … Read the rest

Robotic assist helps paraplegic stand and move around

Seeing this device help a man get up out of his wheelchair makes us wonder why this hasn’t been around for ages. The design principles behind the Tek RMD greatly benefit those without use of their legs. But it’s not just to help him stand, it also serves as motorized transport that makes bulky electric wheelchairs look so last … Read the rest

Doppler-effect lets you add gestures to your computer

What if you could add gesture recognition to your computer without making any hardware changes? This research project seeks to use computer microphone and speakers to recognize hand gestures. Audio is played over the speakers, with the input from the microphone processed to detect Doppler shift. In this way it can detect your hand movements (or movement of any … Read the rest

The Pirate Bay aims for the clouds…literally

tpb

There is no shortage of government and entertainment-related agencies chomping at the bit to shut down the Pirate Bay for good. While the group has not suffered a permanent service ending raid like [Kim Dotcom] and the Megaupload crew, they are always thinking up novel ways to ensure that the site can endure whatever law enforcement throws at them.

In Read the rest

Noise Reduction Techniques for Your Shop-Vac

shop vac noise-reduction setup

Shop-Vacs are great tools, but they do have the notable disadvantage of being loud.  Fortunately, much of the noise emanates from the exhaust, and with a muffler or “silencer”, this can be controlled. The results of my noise-recustion experiments were noticeable, reducing the noise by roughly 5.6 decibels. This may not sound like a huge improvement, but since the scale … Read the rest