DIY science is the perfect way to use your creative skills and learn something new. With the right supplies, some determination, and a curious mind, you can create amazing experiments that open up a whole world of possibilities. At home-made laboratories or tech workshops, makers from all backgrounds can explore new ideas by finding ways to study their environment in novel ways – allowing them to make breathtaking discoveries!
Michael writes “While looking up the Firebug extension for Firefox, I ran into this site about a simple-to-build sailboat from New Zealand called the Firebug. They sell plans and their intention is to foster the skill of amateur boat building. This looks really quite cool.” Link. Anyone ever build one of these?
Matt writes – “Like many people I enjoy gardening and growing houseplants. While my wife and I have a large garden during the summer months I have often thought about how it would be nice to grow things such as tomatos and beans indoors during the winter months. Now I could have the floors lined with even more pots and planters than I do now but as much as my wife likes the movie I don’t think she would appreciate the house having that little shop of horrors decor.” Here’s an inverted hanging planter constructed from a 2 liter soda bottle. I plan on growing tomatoes indoors in addition to the beans which I already have growing in one.” Link.
Here’s a homemade remote control pan and tilt system mounted on a competition class RC car. All controlled wirelessly, with the video piped into a head mounted display. We’ve all seen those minicameras mounted on RC cars but never like this. Awesome mod! Link.
Handy Instructable from murph38_99 – “Create a USB car charger for any iPod or other Device that Charges Via USB by splicing together a car adapter that outputs 5v and USB Female plug. The most important part of this project is to make sure that the output your chosen car adapter is between 4.75v and 5.25v otherwise you risk damaging your device. Please verify voltage with a voltmeter.” Link.
Wow, the folks at Seed magazine are cooking! New science blog network and a combined RSS feed for all of them, nicely done! – “ScienceBlogs is the web’s largest conversation about science. It features blogs from a wide array of scientific disciplines, with new voices coming on board regularly. It is a global, digital science salon.” [via] Link.
Russ writes – “For many years now, I have tinkered with all kinds of interesting projects, and have found a lot of fun in the realm of DIY gas turbine engines. These engines are based around turbochargers, but are in every sense real jets. They produce considerable thrust, and can even be used with afterburners. While I have been tinkering with one of these with a friend of mine, we debated on what kind of vehicle to put it on for testing. He suggested a small boat or a go cart. My theory was that if you really wanted to test out the speed of one of these, you would need a good long stretch of road. That being the case I thought it best to put the engine into a street legal frame. This is where the YSR came into my head. Firstly, a motorcycle would be perfect, as it is street legal, easily registered, and also has very little friction from the tires and wind drag.” Link.
We’ve had a few emails and posts about folks who wanted to build their own lie detector, here’s one (and how it works) – “The circuit diagram of the Lie Detector is shown above. It consists of three transistors (TR1 to TR3), a capacitor (C1), two lights or LEDs (L1 & L2), five resistors (R1 to R5), and a variable resistor (VR1). Suitable transistors to use are BC547, BC548 or BC549, or any other small NPN transistor. The Lie Detector circuit works based on the fact that a person’s skin resistance changes when they sweat (sweating because they’re lying). Dry skin has a resistance of about 1 million ohms, whereas the resistance of moist skin is reduced by a factor of ten or more.” Link.
