I got a bag of these heat sinks from a Chinese seller. They come with twenty fins and four mounting holes, two tapped for metric screws, which were included. They were meant to mount a Star LED to the heat sink. However, since I used thermal glue to mount the LED, I decided to face
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While I was picking up some stuff at the local MicroCenter, I bought an Inland flashlight for $2.99 US. The SKU is 398842 and it comes bare with no packaging. It comes with a lanyard and key ring and it uses a single AA cell. With a fresh alkaline cell it puts out a decent
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I was reading the above titled article in the May 2015 issue of Scientific American magazine. Suddenly I thought about the SETI At Home Project of more than a decade ago. This system is a distributed computing system where small pieces of a very large data set are sent to many thousands of computers around
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I was at MicroCenter buying a few items, mostly USB 3.0 cables. I strolled down the aisle with the tools and this popped into my view. At first I didn’t know what to think. A flexible flashlight? What’s that? But that’s what it is and does. Here’s a link to a photo. And another photo
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I have been discussing political causes with a friend of a good friend of mine, and the latest heated discussion has been about the California Senate bill SB277. California has a law that requires parents to vaccinate their children before they can attend school. There are three exemptions: medical, religious and personal. SB277 removes or
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Quantsuff emailed us a link about a new material summarized at Newscientist.com. I have a few thoughts that I’d like to add. The stuff should be great for illumination. But I have doubts about its use for display purposes. Displays have millions of very small pixels. If one or a few get contaminated with dust
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