cellphone

Cameraphone microscope extension revisited

Cameraphone microscope extension revisited

By Adam Flaherty

Adam Flaherty

I make cool stuff and write about other people making cool stuff on makezine.com. If you have something you think I should see, send me a tip.

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Back in March of 2008 we mentioned a class project from a group of UC Berkeley students working to develop a microscope extension for cameraphones. Led by Daniel Fletcher, the team has since updated their prototype, which is capable of acquiring objects at 1.2 micrometers across.

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PhonePoint Pen prototype

By Adam Flaherty

Adam Flaherty

I make cool stuff and write about other people making cool stuff on makezine.com. If you have something you think I should see, send me a tip.

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uke University students have developed a prototype smartphone app that reads characters drawn with accelerometer data and outputs text using OCR. Though a little impractical as a keyboard replacement, it would be great for gestural input.

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How-To: Start a fire with your cellphone

How-To: Start a fire with your cellphone

By Goli Mohammadi

Goli Mohammadi

I'm a word nerd who loves to geek out on how emerging technology affects the lexicon. I was an editor on the first 40 volumes of MAKE, and I love shining light on the incredible makers in our community. In particular, covering art is my passion — after all, art is the first thing most of us ever made. When not fawning over perfect word choices, I can be found on the nearest mountain, looking for untouched powder fields and ideal alpine lakes.

Contact me at snowgoli@gmail.com or via @snowgoli.

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With backpacking season upon us, the Survival Skills series on the Backpacker site caught my eye. Their newest skill is how to start a fire in the backcountry with your cellphone battery, some steel wool, and tinder. Simple enough, but worth sharing. You never know when the skill may come in handy for survival … […]

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Solar joule thief cell charger

Solar joule thief cell charger

By Chris Connors

Chris Connors

Making things is the best way to learn about our world.

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Photo from Petmar0 on Flickr Pete responded in the comments to the the call for designs in the Rural Celly Charger article on Saturday. How about connecting a joule-thief circuit (DC-DC upconverter) to a cap on one side and a small solar cell (like the ones in calculators) on the other? You pull off of […]

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