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Make: Live ep04is all about DIY Musical Instruments! Thanks to our fill-in cohost Collin Cunningham and guests Ranjit Bhatnagar and Pete Edwards.

Subscribe to the MAKE Podcast in iTunes, download Make: Live episode 04 in its entirety (m4v), or watch clips on YouTube. Also check out the chat room transcript!

Ranjit Bhatnagar – Instrument-A-Day
Ranjit Bhatnagar devotes the month of February to creating a musical instrument every day, documented on his blog. He joins us in-studio with samples from this year’s instrument-a-day series including a laser-cut violin and corn cob sequencer music. Special thanks to guest violinist (and CRAFT contributor) Alaina Zulli for her pixel-perfect performance.

Pete Edwards – Circuit bending & synths
MAKE contributer Pete Edwards (of Casper Electronics) joins us via video chat to talk circuit bending and shows us his den of electronic creations in Troy, NY. Barbie karaoke machines, a glitched-out NES, and a demo of a simple technique to turn cheap toys into circuit-bent gold.

Show notes:

• Call for Makers for Bay Area Maker Faire ends March 14
• 8-bit violin design files on Thingiverse
• Corn music
• Digi-Key giveaway prize: Weller WES51 soldering station, LED multipack, 10x 555 timers, Resistor multipack, coincell batteries and holders, 2x solderless breadboards, jumper wires, and 3 evaldi headsets
• Photo challenge correct answer: BeatBearing Sequencer in MAKE v17
• Maker Shed deal: Take 15% off any of our awesome guitar kits by Saga. Electric guitars, bass guitars, mandolin, even a banjo. Check out with code MAKELIVE2 good through March 23rd 2011.

Next show:
Make: Live 05 – Mechanical Creations from Evil Mad Scientist Laboratories
Wednesday March 23rd, 9pm ET/6pm PT
Watch at makezine.com/live or on UStream
Please join us in the UStream chat or mark tweets with #makelive to interact live with the show.

Make: Live airs tonight! Don’t miss Ranjit Bhatnagar’s Instrument-A-Day creations and Pete Edwards’ circuit-bent “synthstruments,” as fill-in cohost Collin Cunningham puts it (Matt Richardson is away this week).

Make: Live 04 – DIY Musical Instruments
Wednesday March 9th, 9pm ET/6pm PT
Watch at makezine.com/live or on UStream
Please join us in the UStream chat or mark tweets with #makelive to interact live with the show.

A nice summation of the hackerspace scene courtesy of the folks at Hamilton, Ontario’s think|haus.

This week in the MAKE Flickr pool we saw:

B.Light Design's successful test of chalk in an Egg-Bot.

Wonderground's first thing-a-day: resistor dodecahedra!

Pete Prodoehl's panorama of the main room at Milwaukee Makerspace.

Alex Finn's LED Matrix.

The interior of Copper Pete's Switch-toid.

Photograph: Miguel Medina/AFP/Getty Images Photograph: Ben Curtis/AP Photograph: Hannibal Hanschke/EPA Kyle Wiens, of iFixit, sent us the link to this photo essay from the UK Guardian showing Egyptian protesters improvising helmets in the heat of battle. Protesters are also rerouting power from street lights to recharge their cell phone. One twitter user jokingly dubbed this "Maker Faire Cairo." Not to make light of what is a horrible and scary situation, but it is always amazing what sorts of "street tech" we humans are capable of improvising (for good or ill) under the most dire circumstances. [Thanks, Kyle] Egyptian protesters' makeshift helmets – in pictures