The visualization above highlights GEOS FP model output for aerosols on August 23, 2018. On that day, huge plumes of smoke drifted over North America and Africa, three different tropical cyclones churned in the Pacific Ocean, and large clouds of dust blew over deserts in Africa and Asia. The storms are visible within giant swirls of sea salt aerosol (blue), which winds loft into the air as part of sea spray. Black carbon particles (red) are among the particles emitted by fires; vehicle and factory emissions are another common source. Particles the model classified as dust are shown in purple. The visualization includes a layer of night light data collected by the day-night band of the Visible Infrared Imaging Radiometer Suite (VIIRS) on Suomi NPP that shows the locations of towns and cities.
Making your own lightsabers may sound like a highly involved project that takes years of study under a wizened master, and exotic tools and materials — but it doesn’t have to be difficult at all!
In this guide we’ll show you how to make your own interactive no-soldering-required lightsabers using common materials from the hardware or craft store and a few simple techniques.
With the HalloWing, we can use the onboard accelerometer to detect saber swinging and hitting motions, control the NeoPixel strip for blade animations, and play sounds through the built in amplifier to a small, yet powerful speaker!
Plus, you’ll learn some very handy tricks for adding structure and diffusion to NeoPixel strips using corrugated plastic, parchment paper, and polycarbonate bulb guard tubes.
I collected as many Yamaha DX7 patch files as I could and deduplicated each voice within each patch file. There were 59,907 SYSEX files, most of which contained a bank of 32 voices each, for a total of 1,853,728 voice sounds. After hashing the non-name content of the voice (the actual parameters of the sound), I found 31,380 unique voices made by musicians over the years for the DX7.
If you are a gardener, you’ll know only too well the distress of seeing your hard work turned into a free lunch for passing herbivorous wildlife. It’s something that has evidently vexed [Jim], because he’s come up with an automated Raspberry Pi-controlled turretx to seek out invading deer, and in his words: “Persuade them to munch elsewhere”.
Before you groan and sigh that here’s yet another pan and tilt camera, let us reassure you that this one is a little bit special. For a start, it rotates upon a set of slip rings rather than an untidy mess of twisted cables, so it can perfom 360 degree rotations at will, then it has a rather well-designed tilting cage for its payload. The write-up is rather functional but worth persevering with, and he’s posted a YouTube video that we’ve placed below the break.
This is a project that still has some way to go, for example just how those pesky deer are to be sent packing isn’t made entirely clear, but we think it already shows enough potential to be worthy of a second look. The slip ring mechanism in particular could find a home in many other projects.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!