and we have been enjoying getting good use out of it these past few months. We first got hooked on this coffee-brewing method at The Thinking Cup near the Boston Commons. Dan was intrigued by the science behind it – they used kitchen scales, electric kettles with thermometers and long spo...
Again, this is not an exact science–there’s lots of room for experimentation. For liquid varieties, I myself have not tried using liquid soap instead of a bar. I think Liquid Castile would be ok, you might want to dilute it with water first (no, I don’t have a dilution ratio to...
That’s exactly why we have incorporated a couple of extra stages in addition to the central carrier wave generator stage. The first transistor and its associated components form a neat little audio amplifier stage and also a buffer between the audio source and the transmitter circuit. This stage...
Place the jars into a cooler, and fill with a gallon of 120 ° water. You want the water to come at least 3/4 of the way up the jars, or the yogurt will not stay warm enough to incubate. So, if you’ve got a really large cooler, you may need more than a gallon of hot wat...
The program also introduces empathy in the engineering design process where young learners are introduced to a real project (context) and engages with their fellow school peers to solve a worldly problem. For the next three years, our focus is on introducing children to the science behind electri...
Numerical Simulation of Air–Water–Flake Graphite Triple-Phase Flow Field in a Homemade Double-Nozzle Jet Micro-Bubble Generator by Xing Dong 1,*, Chenhao Guo 2, Deqiang Peng 3 and Yun Jiang 2 1 School of Mechanical Engineering, Heilongjiang University of Science and Technology, Harbin 1500...