These stickers, thinner than temporary tattoos, have a grid of silver wires in them that make sound when electrified. They also work as microphones.
After receiving an electric audio signal from a music player, the tiny loudspeaker heats up the wire grid to about 33°C, which replicates the sound pattern by changing the pressure of the surrounding air. Our ears pick up these changes in air pressure as sound waves.
The microphone operates in reverse, converting speech sound waves back into an electric signal, which can then be stored and played back by a smartphone or computer. It can detect sound waves coming from the mouth, but it can also recognize words simply from the rumbling of the vocal cords through the skin, the team reports today in Science Advances.
Remember UC Berkeley researcher Pieter Abbeel’s fantastic towel-folding robot? Now, Abbeel and his team have prototyped a new kind of robot arm design meant for the home and other human environments. Compared to robot arms common in factories, this manipulator, called Blue, is less expensive (
Just what we needed, said exactly no one.
Ever wonder if you’re cleaning your teeth well enough? If your last dentist visit has you getting a little more thorough about oral care, it might be time to save yourself some guesswork. A lot of electric toothbrushes promise deep cleaning, but there’s a Platinum Sonic Toothbrush that has power plus the simple but effective […]
The digital age is well and truly upon us, but let’s not forget there’s a load of free TV content floating literally over our heads. No, we’re not talking about the internet. Signals from major broadcast networks are still gratis for anyone who can pick them up with an antenna. And before you envision those […]
Who said LEGO® had to be ground bound? With The Force Flyers DIY Building Block Fly ‘n Drive Drone, you can turn LEGO® and other building-block creations into fully-functional flying machines. It’s available now in the Boing Boing Store for $39.99. This kit comes with everything you need for remote-controlled long distance flight, including a […]