Magnets Versus Laundry Detergent

Soap cleans clothes better than magnets. There, we are spoiling the ending so don’t accuse us of clickbaiting. The funny thing is that folks believe this is plausible enough to ask magnets experts so often that they dedicate a blog entry to comparing magnets and soap. Since you already know …read more

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Brain Hacking with Entrainment

Can you electronically enhance your brain? I’m not talking about surgically turning into a Borg. But are there electronic methods that can improve various functions of your brain? Fans of brainwave entrainment say yes.

There was an old recruiting ad for electrical engineers that started with the headline: The best …read more

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High-Altitude Ballooning Hack Chat

Join us on Wednesday at noon Pacific time for the high-altitude ballooning Hack Chat!

The Cope brothers are our hosts this week. Jeremy, a computer engineer, and Jason, a mechanical engineer, have recently caught the high-altitude ballooning (HAB) bug. In their initial flights they’ve racked up some successes and pushed the edge of space with interesting and varied missions. Their first flight just barely missed the 100,000 foot (30,000 meter) mark and carried a simple payload package of cameras and GPS instruments and allowed them to reach their goal of photographing the Earth’s curvature.

Flight 2 had a similar payload …read more

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Kid Scientists Capture Rare Footage of Endangered Animals on Camera Traps

A unique project turned students at schools around the world into citizen scientists. Continue reading Kid Scientists Capture Rare Footage of Endangered Animals on Camera Traps

Friday Hack Chat: Open Hardware For Science

Scientific equipment is expensive. It can cost hundreds of thousands of dollars to set up a lab. Simply the cost of machines, like data acquisition units or even a simple load cell, can cost hundreds of dollars. This makes research cost prohibitive, and that’s the case even if you do spend a dozen hours a week writing grant proposals. Citizen science is right out, because the cost of the tools to do science is so high.

For this week’s Hack Chat, we’re going to be talking about Open Hardware for science. This is the chat that’s all about Open Source …read more

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Trainspotting with Junk, for Science

[Douglas] hometown Goshen, Indiana takes the state’s motto ‘The Crossroads of America’ seriously, at least when it comes to trains. The city is the meeting point of three heavily frequented railroad tracks that cross near the center of town, resulting in a car-traffic nightmare. When everybody agrees that a situation is bad, it is time to quantify exactly how bad it is. [Douglas] stepped up for this task and delivered.

He describes himself as cheap, and the gear he used to analyze the railroad traffic at a crossing visible from his home certainly fits the bill: a decades-old webcam, a …read more

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Don’t Miss Watching this Solar Eclipse High Altitude Balloon Online

[Dan Julio] let us know about an exciting project that he and his team are working on at the Solid State Depot Makerspace in Boulder: the Solar Eclipse High Altitude Balloon. Weighing in at 1 kg and bristling with a variety of cameras, the balloon aims to catch whatever images are able to be had during the solar eclipse. The balloon’s position should be trackable on the web during its flight, and some downloaded images should be available as well. Links for all of that are available from the project’s page.

High altitude balloons are getting more common as a …read more

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Getting a Measure on Particulates in Stuttgart

There’s a big to-do going on right now in Germany over particulate-matter air pollution. Stuttgart, Germany’s “motor city” and one of Dante’s seven circles of Hell during rush hour, had the nation’s first-ever air pollution alert last year. Cities are considering banning older diesel cars outright. So far, Stuttgart’s no-driving days have been voluntary, and the change of the seasons has helped a lot as well. But that doesn’t mean there’s not a problem.

But how big is the issue? And where is it localized? Or is particulate pollution localized at all? These questions would benefit from a distributed network …read more

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Microfluidics “Frogger” is a Game Changer for DIY Biology

See those blue and green dots in the GIF? Those aren’t pixels on an LCD display. Those are actual drops of liquid moving across a special PCB. The fact that the droplets are being manipulated to play a microfluidics game of “Frogger” only makes OpenDrop v 2.0 even cooler.

Lab biology is mainly an exercise in liquid handling – transferring a little of solution X into some of solution Y with a pipette. Manual pipetting is tedious, error prone, and very low throughput, but automated liquid handling workstations run into the hundreds of thousands of dollars. This makes [Urs Gaudenz]’s …read more

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Fripon is French for Meteorite Hunting

Just a few weeks ago, we reported on a US NASA project to track the path and estimate the size of meteoroids in the sky using a distributed network of a handful of cameras. It turns out that there’s a similar French effort, and it’s even cooler: the Fireball Recovery and InterPlanetary Observation Network (FRIPON). (The name is cute, if the acronym is contrived: a “fripon” is a trickster in French.)

What’s cool about FRIPON is that they’re not just observing the meteorites and fireballs, but they’re actually sending people out to recover them when they’re big enough that they …read more

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