Southpaw writes “After reading the Dean Kamen (MAKE 04) article I wanted to learn more about stirling engines and stumbled upon this site which shows you how to build your own…out of marbles! Also of note is the NMRI homepage which shows off the firm’s 400m long tow tank and 35m long Ice basin (under “main facilities”).” Link.
Here are some handy tips on making an already useful Moleskin notebook even more useful – my favorite “Pencil sharpener. Two pieces of sandpaper, couse for wood, fine to sharpen the lead to a nice point. Sticky back tape the sandpaper to the back of your notebook.” Link.
This site has a bit of information about a paper microscope kit, they’re only sold in Germany, but it looks easy enough to recreate these and make your own…“Here’s a microscope, made from nothing but paper, two lenses, a plastic mirror and a drinking straw. Although this is not the kind of material you would expect to be used in an optical instrument, the facts are quite amazing: 50 x magnification, gear drive for focus setting, high quality plastic lenses, mirror to collect light for transmission view.” Thanks Joevennix! Link.
DoctaBu” writes “Using some base code from PlasticBug’s DittyBot, I created VoxCaller, an Automator workflow that lets people send computerized voice messages to other people via e-mail. People might think they should just call the person, but I personally think that Zarvox delivers messages in a more… exciting way.” This is a lot of fun. Link.
I might make one of these myself with other bits of retro gear, it’s really clever. “These calendars showcase different classic computers on each page. It includes the Vic 20, Apple IIGS, CPC 464, TRS-80, Amiga, Atari 800XL, etc. It’s a perfect gift for any computer enthusiast or anyone who remembers those classic computers of the past.” Thanks Scotty! Link.
Excellent guide on procuring LEDs from a cheap and plentiful source – “They come disguised as “Christmas Lights” – the “Forever Bright” line is especially good. And they are the subject of this article. Why bother? Cost. A string of 75 BLUE LED lights costs $10 on sale – and up where I am there’s a $5 rebate per string for “Energy Saver” lights. So that’s five bucks for 75 LEDs – or about 7 cents per LED for the expensive BLUE ones. Cheap.” Link.
This week’s video on the Manufacturers’ Blog is how electricity is made “…it comes to us courtesy of the good people down at Mississippi Power (part of the Southern Company). It’s a video of their “Plant Daniel”, near Escatawpa, Mississippi. Here you’ll see machines that generate a million kilowatts of electricity, a plant that burns (cleanly) 500,000 pounds of coal per hour, heating water to 1000 degrees Fahrenheit to make energy for all of us to use. In all, this one plant produces 9 billion kilowatt hours of energy per year.” Link.
